MedWorm: Laser Surgery

Performance of laser fluorescence at tooth surface and histological section

Lasers in Medical Science — Thu, 11 Mar 2010 02:49:56 +0100

This study aimed to evaluate a laser fluorescence device (the DIAGNOdent) and a visual classification system (ICDAS-II) for occlusal caries diagnosis. It also aimed to determine whether fluorescence measurements taken at the tooth surface correlate with the fluorescence measurements taken within the body of the lesion. The occlusal surfaces of 100 extracted permanent teeth were examined using ICDAS-II and DIAGNOdent (LF-tooth). Serial sections were made and lesion depth was assessed histologically. DIAGNOdent readings were also taken from the sections (LF-section). There were significant positive strong correlations between ICDAS-II and histology (rS = 0.71) and LF-section and histology (rS = 0.70), and only moderate correlations between LF-tooth and histology (rS = 0.51) ...

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Laser treatment of mucosal venous malformations of the upper aerodigestive tract in 50 patients

Lasers in Medical Science — Wed, 10 Mar 2010 18:27:47 +0100

We examined the clinical appearance of mucosal venous malformations of the upper aerodigestive tract with regard to their accessibility to laser therapy and further assessed the value of treatment of these lesions with the Nd:YAG and CO2 lasers. A retrospective study was performed in 50 patients who had undergone laser treatment for mucosal low-flow vascular malformations of the upper aerodigestive tract. Records were reviewed for demographic data, extent of the lesion, treatment modality, required number of therapy sessions and the therapeutic outcome. Follow-up was performed by postinterventional clinical examination and additional interview by phone for current status. Between 1 July 2001 and 30 September 2008 32 women and 18 men received laser treatment and were followed up until ...

Alexa and Page Decide to Have LASIK

Dishler Laser — Sun, 07 Mar 2010 16:11:19 +0100

Perhaps an unusual post for a LASIK blog, but we find ourselves increasingly discovered in the world from our website and more importantly from this blog. At any instant in time there are a myriad of people in front of a computer screen, much like the one you are reading now. They are using their eyes, their vision, to see that screen and to see the world beyond it. Our job at Dishler Laser Institute is to make that vision as clear as possible without the need for glasses or contact lenses. How people find us is through this internet along with the conventional "old school" referral patterns which bring new patients to doctors. On the internet side, there are two powerful forces at work that measure the popularity we achieve and their names remind me ...

Thermal Effects from Modified Endodontic Laser Tips Used in the Apical Third of Root Canals with Erbium-Doped Yttrium Aluminium Garnet and Erbium, Chromium–Doped Yttrium Scandium Gallium Garnet Lasers

Photomedicine and Laser Surgery — Fri, 05 Mar 2010 04:04:40 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Effect of GaAlAs Laser Irradiation on the Epiphyseal Cartilage of Rats

Photomedicine and Laser Surgery — Thu, 04 Mar 2010 19:00:35 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Ultra-Structural Changes at the Apical Stop Irradiated with CO2 Laser

Photomedicine and Laser Surgery — Thu, 04 Mar 2010 18:57:56 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

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Comparison of Neodymium-Doped Yttrium Aluminum Garnet Laser Treatment with Cold Knife Endoscopic Incision of Urethral Strictures in Male Patients

Photomedicine and Laser Surgery — Thu, 04 Mar 2010 18:53:00 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

The first PDT organization was formed in Shanghai

Photodiagnosis and Photodynamic Therapy — Tue, 02 Mar 2010 00:00:00 +0100

(Source: Photodiagnosis and Photodynamic Therapy)

Editorial Board

Photodiagnosis and Photodynamic Therapy — Mon, 01 Mar 2010 00:00:00 +0100

(Source: Photodiagnosis and Photodynamic Therapy)

Why Not Wait Until Later For LASIK

Dishler Laser — Fri, 26 Feb 2010 16:34:12 +0100

Intelligent consumers are always in the position of weighing their best options today against a potentially improved one tomorrow. Look at the case of computer memory, the price drops in half while the amount of storage doubles almost every two years. On the other hand, if you need some RAM memory today, it matters little what it will cost tomorrow. Medical procedures and services have not traditionally been considered consumer items. For one, if you really need your gall bladder removed, you will take the best technology you can get today, even if someday it will be possible to remove it through your mouth in fifteen minutes. Many elective procedures are in the same situation where a face lift in five years will definitely not be less expensive than one today. ...

Laser Tattoo Removal Video

Aesthetic Lasers — Thu, 25 Feb 2010 18:47:21 +0100

This is a good video report, which covers most of the things a consumer should know about tattoo removal by a medical laser. Join Neil Sadick, MD, as he performs laser tattoo removal and provides tips for what to expect from the procedure. Laser Tattoo Removal (opens in new window) Related Posts:More About Laser Tattoo RemovalVideo of Laser [...]Post from: Aesthetic Laser OffersLaser Tattoo Removal Video (Source: Aesthetic Lasers)

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Low-level Er:YAG laser irradiation enhances osteoblast proliferation through activation of MAPK/ERK

Lasers in Medical Science — Thu, 25 Feb 2010 17:55:52 +0100

Abstract Although the use of high-level Er:YAG laser irradiation has been increasing in periodontal and peri-implant therapy, the effects of low-level Er:YAG laser on surrounding tissues and cells remain unclear. In the present study, the effects of low-level Er:YAG laser irradiation on osteoblast proliferation were investigated. Cells of the osteoblastic cell line MC3T3-E1 were treated with low-level Er:YAG laser irradiation with various combinations of laser settings (fluence 0.7–17.2 J/cm2) and in the absence or presence of culture medium during irradiation. On day 1 and/or day 3, cell proliferation and death were determined by cell counting and by measurement of lactate dehydrogenase (LDH) levels. Further, the role of mitogen-activated protein kinase (MAPK) pathw...

In vivo confocal laser scanning microscopy of hypopigmented macules: a preliminary comparison of confocal images in vitiligo, nevus depigmentosus and postinflammatory hypopigmentation

Lasers in Medical Science — Wed, 24 Feb 2010 06:50:00 +0100

Abstract The use of confocal laser scanning microscopy (CLSM) may be an eligible alternative for confirmation of the diagnosis of hypopigmented macules. Our purpose was to evaluate CLSM features for non-invasive imaging of vitiligo, nevus depigmentosus and postinflammatory hypopigmentation in vivo. A total of 68 patients with a clinical diagnosis of the aforementioned diseases were included in this study. CLSM was performed on lesional and adjacent normal appearing skin for all patients. In the active and stable phases of vitiligo, CLSM demonstrated a complete loss of melanin in lesional skin in 14 of 25 patients (56.0%) and 16 of 20 patients (80.0%), respectively. In 11 of 25 (44.0%) patients, the amount of melanin in lesional skin decreased in the active phase of vitilig...

A dedicated applicator for light delivery and monitoring of PDT of intra-anal intraepithelial neoplasia

Photodiagnosis and Photodynamic Therapy — Mon, 22 Feb 2010 00:00:00 +0100

The objective of this study was to develop an applicator for delivery of light and monitoring of photodynamic therapy (PDT) in the anal cavity for treatment of anal intraepithelial neoplasia grade III (AIN III), which can progress to invasive anal cancer.Forty-eight hours before treatment, patients participating in the study were injected with 0.03 (n=2) or 0.075 (n=2)mgkg−1 m-THPC. For light delivery and monitoring of PDT, an applicator based on standard anoscopy equipment was developed which facilitates, in addition to a light treatment fiber, fiber optic probes to monitor blood saturation, blood volume, fluorescence and fluence (rate) at two different locations in situ. Patients were given a light dose of 10–17Jcm−2 at a fluence rate of 45–50mWcm−2 based on in situ measured li...

Laser-induced effects in different biological samples

Lasers in Medical Science — Sat, 20 Feb 2010 06:52:03 +0100

Abstract Experiments were carried out on cancerous HeLa cells and blood serum using a double integrating sphere and a He-Ne laser to investigate the optical properties and cellular effects due to photodynamic therapy (PDT). In the first experiment, HeLa cells were exposed to Photofrin at concentrations of 0, 10, 20, 30, 50 and 112.4 µg/ml at an irradiance of 0.2 W/cm2 using diode laser light. Using a confocal microscope, cell debris and morphological changes in HeLa cells were recorded at different Photofrin concentrations. The results showed cell debris in HeLa cells at the highest concentration of Photofrin. In a second experiment, photobleaching was observed in HeLa cells in the presence of various concentrations of 5-aminolaevulinic acid ranging from 0–50&n...

Can Surgical Site Infection (SSI) be treated by photodynamic therapy (PDT)?

Photodiagnosis and Photodynamic Therapy — Thu, 18 Feb 2010 00:00:00 +0100

Surgical Site Infection is defined as an infection of the tissues within or around the surgical wound that develops within 30 days after an operation . Many such infections are initiated by pyogenic organisms which are implanted into the wound at operation. Alternatively the surgical wound can become secondarily contaminated and be invaded by pathogens. In either event the SSI becomes a major cause of protracted recovery, and/or disabling morbidity, which in some cases lead to fatal outcome, after an otherwise successful operation. (Source: Photodiagnosis and Photodynamic Therapy)

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Acknowledgment of Reviewers 2009

Photomedicine and Laser Surgery — Wed, 17 Feb 2010 18:08:37 +0100

Photomedicine and Laser Surgery Feb 2010, Vol. 28, No. 1: 153-154. (Source: Photomedicine and Laser Surgery)

Photomedicine and LLLT Literature Watch

Photomedicine and Laser Surgery — Wed, 17 Feb 2010 17:58:50 +0100

Photomedicine and Laser Surgery Feb 2010, Vol. 28, No. 1: 155-155. (Source: Photomedicine and Laser Surgery)

Calendar of Laser Courses and Meetings

Photomedicine and Laser Surgery — Wed, 17 Feb 2010 17:57:02 +0100

Photomedicine and Laser Surgery Feb 2010, Vol. 28, No. 1: 157-158. (Source: Photomedicine and Laser Surgery)

Effects of KTP laser on oral soft tissues. An in vitro study

Lasers in Medical Science — Tue, 16 Feb 2010 18:06:57 +0100

Abstract A biopsy is a surgical procedure performed to establish a clear diagnosis of a lesion in order to clarify a clinical diagnostic suspicion. During a biopsy procedure it is fundamental to maintain safe and readable cut margins in order to permit histological visualization of possible marginal infiltrations or malignant transformation of a lesion. The aim of this study was to evaluate the histological peripheral damage caused by application of a KTP (potassium titanium phosphate) laser during oral soft tissue biopsy procedures. A KTP laser (λ 532 nm) at different power settings and fluences was used to obtain 45 samples from pig cadaver tongues. The samples were then subdivided into five groups of nine samples each. A final specimen was taken by scalpel as a co...

Microleakage of repaired class V silorane and nano-hybrid composite restorations after preparation with erbium:yttrium–aluminum–garnet laser and diamond bur

Lasers in Medical Science — Tue, 16 Feb 2010 18:06:56 +0100

Abstract The aim of this in vitro study was to compare the microleakage of repaired class V resin composite restorations prepared either by Er:YAG laser or a diamond bur. Ninety-six intact human molar teeth were randomly distributed into eight groups. In the first four groups, class V cavities (3 × 3 × 3 mm) prepared on the buccal and lingual surfaces of the teeth using an erbium:yttrium-aluminum-garnet laser (VersaWave, HOYA ConBio, Japan). Similar class V cavities were prepared in the second four groups using a diamond bur (S-Class, Komet, UK). Teeth in groups 1, 2, and 5, 6 were restored with a nano-ceramic composite (Ceram.X duo, DENTSPLY), whereas a silorane material (Filtek Silorane, 3M ESPE) was used to restore cavities in groups 3, 4, and 7, 8. Two different adhe...

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Activation of the extracellular signal-regulated kinase signal pathway by light emitting diode irradiation

Lasers in Medical Science — Tue, 16 Feb 2010 18:06:56 +0100

Abstract Irradiation by light emitting diode (LED) promotes fibroblast proliferation and wound healing. However, its mechanism is still unknown. The purpose of this study was to clarify the mechanism of fibroblast proliferation by LED irradiation. Cultured NIH3T3 fibroblasts from normal mice were irradiated by LED with a center wavelength of 627 nm. LED irradiation was performed with an energy density of 4 J/cm2, at subculture and 24 h later. The expression of several growth factors and their receptors was analyzed by reverse transcriptase-polymerase chain reaction (RT-PCR): platelet-derived growth factor (PDGF)-A, PDGF-B, and PDGF-C, transforming growth factor-beta (TGF-β), basic fibroblast growth factor (bFGF), PDGF-α receptor, and TGF-β receptor. Then, ...

Comparing the reliability of a new fluorescence camera with conventional laser fluorescence devices in detecting caries lesions in occlusal and smooth surfaces of primary teeth

Lasers in Medical Science — Mon, 15 Feb 2010 18:00:33 +0100

In conclusion, the FC showed high reliability for occlusal and smooth surfaces, similar to the other fluorescence methods tested. Additionally, prolonged air drying increased the FC measurements. Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s10103-010-0757-1Authors Monique Saveriano De Benedetto, Faculdade de Odontologia da Universidade de São Paulo Department of Pediatric Dentistry São Paulo BrazilCaroline Carvalho Morais, Faculdade de Odontologia da Universidade de São Paulo Department of Pediatric Dentistry São Paulo BrazilTatiane Fernandes Novaes, Faculdade de Odontologia da Universidade de São Paulo Department of Pediatric Dentistry São Paulo BrazilJonas de Almeida Rodrigues, University of Bern School of Dental Medicine Bern SwitzerlandMariana Minatel B...

Launch of the uk-pdt charitable trust

Photodiagnosis and Photodynamic Therapy — Mon, 15 Feb 2010 00:00:00 +0100

(Source: Photodiagnosis and Photodynamic Therapy)

Removal of orange eyebrow tattoo in a single session with the Q-switched Nd:YAG 532-nm laser

Lasers in Medical Science — Sat, 13 Feb 2010 06:48:11 +0100

Content Type Journal ArticleCategory Letter to the editorDOI 10.1007/s10103-009-0748-2Authors Rita Guedes, Centro Hospitalar de Vila Nova de Gaia Dermatology Department Rua Conceição Fernandes 4430 Vila Nova de Gaia PortugalLuiz Leite, Clínica Laser de Belém Dermatology Department Calçada da Ajuda, 72B 1300 Lisbon Portugal Journal Lasers in Medical ScienceOnline ISSN 1435-604XPrint ISSN 0268-8921 (Source: Lasers in Medical Science)

Shear bond strength of bonding to enamel with different laser irradiation distances

Lasers in Medical Science — Fri, 12 Feb 2010 07:09:28 +0100

Abstract The aim of this study was to investigate the shear bond strength of bonding to enamel following laser etching with the Er:YAG or Er,Cr:YSGG laser using different irradiation distances. Of 99 extracted human premolar teeth, 90 were divided equally into nine groups. In the control group (group A) the teeth were etched with 38% phosphoric acid. In the laser groups (groups B–I) the enamel surface of the teeth was laser-irradiated, groups B–E with the Er:YAG laser and groups F–I with the Er,Cr:YSGG laser at distances of 1, 2, 4 and 6 mm, respectively. The shear bond strengths were tested using a universal testing machine. The shear bond strengths associated with the Er:YAG laser at 4 and 6 mm and the Er,Cr:YSGG laser at 2, 4 and 6 mm were significan...

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In vitro analysis of human tooth pulp chamber temperature after low-intensity laser therapy at different power outputs

Lasers in Medical Science — Thu, 11 Feb 2010 11:48:56 +0100

Abstract In vitro studies have provided conflicting evidence of temperature changes in the tooth pulp chamber after low-level laser irradiation of the tooth surface. The present study was an in vitro evaluation of temperature increases in the human tooth pulp chamber after diode laser irradiation (GaAlAs, λ = 808 nm) using different power densities. Twelve human teeth (three incisors, three canines, three premolars and three molars) were sectioned in the cervical third of the root and enlarged for the introduction of a thermocouple into the pulp chamber. The teeth were irradiated with 417 mW, 207 mW and 78 mW power outputs for 30 s on the vestibular surface approximately 2 mm from the cervical line of the crown. The highest average increas...

Carbonized blood deposited on fibres during 810, 940 and 1,470 nm endovenous laser ablation: thickness and absorption by optical coherence tomography

Lasers in Medical Science — Wed, 10 Feb 2010 06:47:54 +0100

In conclusion, we found strong evidence that all EVLA procedures in blood filled veins deposit a heavily absorbing hot layer of carbonized blood on the fibre tip, with concomitant tip damage. This major EVLA mechanism is unlikely to have much wavelength dependence at similar delivered energies per centimetre of vein. Optical–thermal interaction between the vein wall and the transmitted laser light depends on wavelength. Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s10103-009-0749-1Authors Mustafa Amzayyb, University of Amsterdam Department of Biomedical Engineering & Physics, Academic Medical Centre Meibergdreef 9 1105 AZ Amsterdam The NetherlandsRenate R. van den Bos, Erasmus Medical Centre Department of Dermatology Rotterdam The NetherlandsVitali M. Kodach, ...

Nikon And LASIK

Dishler Laser — Tue, 09 Feb 2010 16:32:08 +0100

Vision starts with a camera of sorts, for people this is the human eye. Just like a camera, light enters an optical system and is focused with some optics onto the retina where it is transformed into electrical impulses that are received by a big computer processor we call "the brain." In cameras it is all about the quality of the optics, the shape of the optics, and the size of the optics to get enough light into the camera for the film, or the sensor to be able to transform the light into electrical impulses. Our retina is a much better light sensor than most cameras and certainly more compact than the D3. It is about the size of the sensor in a Coolpix, but with the light sensitivity of its much bigger brother. Quite simply, the more light you have, the...

Depth sensitivity analysis of functional near-infrared spectroscopy measurement using three-dimensional Monte Carlo modelling-based magnetic resonance imaging

Lasers in Medical Science — Mon, 08 Feb 2010 17:30:54 +0100

In this study a realistic head model generated from structure data from magnetic resonance imaging (MRI) was introduced into a three-dimensional Monte Carlo code and the sensitivity of functional near-infrared measurement was analysed. The effects of the distance between source and detector, and of the optical properties of the probed tissues, on the sensitivity of the optical measurement to deep layers of the adult head were investigated. The spatial sensitivity profiles of photons in the head, the so-called banana shape, and the partial mean optical path lengths in the skin-scalp and brain tissues were calculated, so that the contribution of different parts of the head to near-infrared spectroscopy signals could be examined. It was shown that the signal detected in brain function ...

Topical ALA PDT for the treatment of severe acne vulgaris

Photodiagnosis and Photodynamic Therapy — Mon, 08 Feb 2010 00:00:00 +0100

Conclusions: ALA PDT is a simple, safe and effective therapeutic option for the treatment of severe acne. Further studies to fully understand its mechanisms and optimize its effectiveness are needed. (Source: Photodiagnosis and Photodynamic Therapy)

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Taking treatment decisions in non-melanoma skin cancer—The place for topical photodynamic therapy (PDT)

Photodiagnosis and Photodynamic Therapy — Mon, 08 Feb 2010 00:00:00 +0100

Conclusion: Physicians treating NMSC should have access to PDT and be trained and experienced in its use. (Source: Photodiagnosis and Photodynamic Therapy)

Comparative effects of wavelengths of low-power laser in regeneration of sciatic nerve in rats following crushing lesion

Lasers in Medical Science — Fri, 05 Feb 2010 07:02:02 +0100

Abstract Peripheral nerves are structures that, when damaged, can result in significant motor and sensory disabilities. Several studies have used therapeutic resources with the aim of promoting early nerve regeneration, such as the use of low-power laser. However, this laser therapy does not represent a consensus regarding the methodology, thus yielding controversial conclusions. The objective of our study was to investigate, by functional evaluation, the comparative effects of low-power laser (660 nm and 830 nm) on sciatic nerve regeneration following crushing injuries. Twenty-seven Wistar rats subjected to sciatic nerve injury were divided into three groups: group sham, consisting of rats undergoing simulated irradiation; a group consisting of rats subjected to...

Efficacy of high intensity diode laser as an adjunct to non-surgical periodontal treatment: a randomized controlled trial

Lasers in Medical Science — Wed, 03 Feb 2010 17:54:03 +0100

Abstract The high intensity diode laser has been studied in periodontics for the reduction of subgingival bacteria in non-surgical treatment. Our study evaluated the bacterial effect as well as changes in periodontal clinical parameters promoted by root scaling and planing associated with this wavelength. Twenty-seven patients randomly assigned in two groups underwent root scaling and planing on the tested sites, and only the experimental group received the diode laser irradiation. Among the clinical parameters studied, the clinical probing depth (CPD) and the clinical attachment level (CAL) resulted in significant enhancement in the control group when compared with the experimental group (P = 0.014 and P = 0.039, respectively). The results were similar for both gro...

High power-pulsed Nd:YAG laser as a new stimulus to induce BMP-2 expression in MC3T3-E1 osteoblasts

Lasers in Surgery and Medicine — Tue, 02 Feb 2010 00:00:00 +0100

This study investigated osteoblast responses to high-power laser and combined irradiation with BMP-2 treatment.MC3T3-E1 pre-osteoblasts were exposed to laser irradiation, 100 ng/ml BMP-2 or both. Cells were irradiated with a Q-switched, pulsed neodymium-doped yttrium aluminum garnet (Nd:YAG) laser, with a 1,064 nm wavelength and 0.75 W output power under 1.5, 3, or 5 J/cm2 energy densities. Cell proliferation was evaluated using tetrazolium salt, WST-8. To determine the effect of these treatments on in vitro osteogenesis, we examined alkaline phosphatase (ALP) activity, mineral deposition, and expression of genes associated with osteogenesis. Quantitative real time PCR or ELISA was used to examine cytokine expression. In each experiment, either non-irradiated or BMP-2 (100 ng/ml)-treated c...

Evaluation of carbon dioxide laser irradiation associated with calcium hydroxide in the treatment of dentinal hypersensitivity. A preliminary study

Lasers in Medical Science — Mon, 01 Feb 2010 18:04:17 +0100

Abstract Attempts have been made to treat dentinal hypersensitivity by sealing exposed dentinal tubules, and the carbon dioxide (CO2) laser has been shown to have a sealing effect on dentinal surfaces. The purpose of this study was to analyze the morphological ultra-structure and temperature change after CO2 laser irradiation of dentin. Fourteen human third molars were selected and cleaned. An area was delimited, and the samples were randomly divided into seven groups: Group 1 (G1): control; G2, calcium hydroxide paste (CA) + CO2 laser (L) (0.5 W/63,69 W/cm2); G3, CA + L (1 W/125,38 W/cm2); G4, CA + L (1.5 W/191,08 W/cm2); G5, L (0.5 W); G6, L (1 W); G7, L (1.5 W). All irradiation was performed in unfocused mode. The electro...

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The "Hassle" of LASIK?

Dishler Laser — Mon, 01 Feb 2010 17:30:07 +0100

There is one primary reason why LASIK has rocketed to popularity over the last decade, and it has to do with the quick recovery and results. There are few if any medical procedures where the results are so predictable and rapid as in LASIK laser vision correction. Although as with any medical procedure their are risks and complications, for the vast majority of patients undergoing this procedure, the vision is restored to normal levels virtually overnight. Despite this fact, many potential LASIK candidates are cautious due to their previous experience with contact lenses. This is the secret question that many potential LASIK patients ask themselves: "If my eyes can be so uncomfortable with a tiny glob of mascara underneath them, how will I tolerate h...

Effect of sealants on laser fluorescence caries detection in primary teeth

Lasers in Medical Science — Sat, 23 Jan 2010 07:42:44 +0100

In conclusion, LF readings for occlusal caries detection in primary molars were significantly affected by both the clear and the opaque materials. However, the effect for the opaque material was more pronounced. Content Type Journal ArticleCategory Original ArticleDOI 10.1007/s10103-009-0745-5Authors Elina Askaroglou, University of Athens Department of Paediatric Dentistry, School of Dental Medicine Athens GreeceKaterina Kavvadia, University of Athens Department of Paediatric Dentistry, School of Dental Medicine Athens GreecePanagiotis Lagouvardos, University of Athens Department of Restorative Dentistry, School of Dental Medicine Athens GreeceLisa Papagiannoulis, University of Athens Department of Paediatric Dentistry, School of Dental Medicine Athens Greece Journal Lasers in...

Spectrophotometers for the clinical assessment of port-wine stain skin lesions: a review

Lasers in Medical Science — Wed, 20 Jan 2010 06:44:52 +0100

Abstract Reflectance spectrophotometry is the most established and widely used objective technique for the assessment of port-wine stain (PWS) skin, and has been applied extensively in other dermatological applications. To date, no review has been published regarding the different spectrophotometric devices used on PWS skin. This paper comprises such a review, introducing the reader to the relevant background material and then discussing scanning, narrow-band and tristimulus spectrophotometers in turn. Scanning spectrophotometry is the most versatile of the three methods but it is noted that considerable expertise is required to interpret the acquired data. Narrow-band and tristimulus devices are available at a much lower price and can be considerably simpler to use. They ...

A Different Way To See

Dishler Laser — Tue, 19 Jan 2010 16:25:15 +0100

Dishler Laser Institute, is not just a name, it is really an eye research center which has conducted numerous clinical trials over almost two decades to help advance the field of eye surgery and vision. We have been part of many aspects of laser vision development while maintaining an active clinical practice. Most recently we have been selected as one of just five clinical sites to implant the Revision Lens into properly selected and informed candidates as part of an FDA clinical trial currently pending final approval. These patients will all be people who have had great vision all of their lives, and now in their mid-life, are experiencing an inability to see well at near. The lens is carefully implanted as a minor surgical procedure just beneath the surface...

Effects of laser and acid etching and air abrasion on mineral content of dentin

Lasers in Medical Science — Mon, 18 Jan 2010 18:47:14 +0100

Abstract The aim of this study was to evaluate the mineral content of dentin prepared using an Er,Cr:YSGG laser at four different power settings, acid etching, and air abrasion. The study teeth comprised 35 molars which were randomly divided into seven equal groups. The occlusal third of the crowns were cut with a slow-speed diamond saw. The groups were as follows: group A, control group; group B, dentin etched with 35% buffered phosphoric acid for 30 s; group C, dentin abraded at 60 psi with 50-µm aluminium oxide for 1 s; groups D–G, dentin irradiated with the Er,Cr:YSGG laser at 1.50 W (group D), 2.25 W (group E), 3.00 W (group F), and 3.50 W (group G). The levels of Mg, P, Ca, K and Na in each dentin slab were measured by inductively...

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Taking cutaneous PDT to the next level

Photodiagnosis and Photodynamic Therapy — Mon, 18 Jan 2010 00:00:00 +0100

Sally Ibbotson and Alexis Sidoroff are to be congratulated on their clear and concise accounts of the place of Photodynamic Therapy (PDT) in the treatment of cutaneous pathology. Many dermatologists present patients with a list of possible treatments and ask them to make a choice. Sally Ibbotson and Alexis Sidoroff both forcibly make the point that the treatments are not interchangeable and that there are specific indications for each treatment although there is inevitably some overlap. These papers provide the clinician with sufficient understanding of the issues involved to confidently advise his patient of the optimum treatment for his condition. (Source: Photodiagnosis and Photodynamic Therapy)

Effect of light emitting diodes in the photodynamic therapy of rheumatoid arthritis

Photodiagnosis and Photodynamic Therapy — Fri, 15 Jan 2010 00:00:00 +0100

Conclusion: The properly selected wavelength and intensity of light beam were incident with great precision so that they would not affect unwanted cells, but inflamed activated cells were suppressed due to intense light energy following Methotrexate injection. Without invasion, IR LED PDT showed an effective and cheaper treatment solution for RA. (Source: Photodiagnosis and Photodynamic Therapy)

Photodynamic diagnosis (PDD) for upper urinary tract transitional cell carcinoma (UT-TCC): Evolution of a new technique

Photodiagnosis and Photodynamic Therapy — Fri, 15 Jan 2010 00:00:00 +0100

Conclusion: Photodynamic diagnosis using oral 5-ALA and subsequent treatment of upper tract urothelial tumours is safe and feasible with additional advantages of detecting lesions not visualised on conventional white light endoscopy. (Source: Photodiagnosis and Photodynamic Therapy)

I Hate My Glasses Video Contest to Win Free LASIK Vision Correction

Dishler Laser — Tue, 12 Jan 2010 17:35:22 +0100

There will be two winners: Details HERE. One humorous LASIK video and one serious LASIK video will be chosen. Submitted You Tube videos must be at the minimum 2 minutes in length but no longer than 4 minutes. We know every video requires some work on your part, so everyone who submits a video will be sent a coupon via e-mail for $500 off bilateral Custom All Laser LASIK surgery. ($250 off per eye – may not be combined with other discounts or offers, no cash value, etc.). 4 finalists will be chosen by Dishler Laser Institute. Finalists must agree to come into our office to determine their candidacy for LASIK. The 2 winners chosen must be a candidate for LASIK, and agree to the terms and conditions of the contest. The two winners will receive Free Custom All Laser LASIK ...

Photodynamic therapy for intraepithelial neoplasia of the lower genital tract

Photodiagnosis and Photodynamic Therapy — Mon, 11 Jan 2010 00:00:00 +0100

Summary: Photodynamic Diagnosis (PDD) and Therapy (PDT) are modern methods which are evaluated in different fields in gynaecology. PDT has been successfully evaluated in human papillomavirus-related (HPV) genital dysplasia like CIN and VIN. The aim of this review is to give an overview about current applications. (Source: Photodiagnosis and Photodynamic Therapy)

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Responsibilities and Innovation

Photomedicine and Laser Surgery — Thu, 07 Jan 2010 15:34:19 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

An overview of topical photodynamic therapy in dermatology

Photodiagnosis and Photodynamic Therapy — Wed, 30 Dec 2009 00:00:00 +0100

This article is a review of the use of topical photodynamic therapy in dermatology and its current role in 2009 and future developments. The content of this article was presented at the EPPM in Wroclaw, September 2009. (Source: Photodiagnosis and Photodynamic Therapy)

Results of combined photodynamic therapy (PDT) and high dose rate brachytherapy (HDR) in treatment of obstructive endobronchial non-small cell lung cancer (NSCLC)

Photodiagnosis and Photodynamic Therapy — Mon, 28 Dec 2009 00:00:00 +0100

Conclusions: Combined HDR/PDT treatment for endobronchial tumors is well tolerated and can achieve prolonged local control with acceptable morbidity when PDT follows HDR and when the spacing between treatments is 1 month or less. This treatment regimen should be studied in a larger patient population. (Source: Photodiagnosis and Photodynamic Therapy)

Carbon Dioxide (CO2) Laser-Assisted Ablation of Lumbar Discal Cyst

Photomedicine and Laser Surgery — Sun, 27 Dec 2009 00:43:24 +0100

Photomedicine and Laser Surgery Dec 2009, Vol. 27, No. 6: 837-842. (Source: Photomedicine and Laser Surgery)

Editorial Comment

Photomedicine and Laser Surgery — Sun, 27 Dec 2009 00:43:01 +0100

Photomedicine and Laser Surgery Dec 2009, Vol. 27, No. 6: 965-966. (Source: Photomedicine and Laser Surgery)

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Author's Reply

Photomedicine and Laser Surgery — Sun, 27 Dec 2009 00:42:54 +0100

Photomedicine and Laser Surgery Dec 2009, Vol. 27, No. 6: 967-968. (Source: Photomedicine and Laser Surgery)

Successful Combination Therapy For Severe Infantile Hemangiomas: Case Report and Literature Search

Photomedicine and Laser Surgery — Sun, 27 Dec 2009 00:42:24 +0100

Photomedicine and Laser Surgery Dec 2009, Vol. 27, No. 6: 973-977. (Source: Photomedicine and Laser Surgery)

Effect of Erbium-Doped Yttrium Aluminium Garnet Laser Parameters on Ablation Capacity and Morphology of Primary Dentin

Photomedicine and Laser Surgery — Sun, 27 Dec 2009 00:40:45 +0100

Photomedicine and Laser Surgery Dec 2009, Vol. 27, No. 6: 885-890. (Source: Photomedicine and Laser Surgery)

Advances and Perspectives on Tissue Repair and Healing*

Photomedicine and Laser Surgery — Sun, 27 Dec 2009 00:38:55 +0100

Photomedicine and Laser Surgery Dec 2009, Vol. 27, No. 6: 833-836. (Source: Photomedicine and Laser Surgery)

Photomedicine and LLLT Literature Watch

Photomedicine and Laser Surgery — Sun, 27 Dec 2009 00:38:42 +0100

Photomedicine and Laser Surgery Dec 2009, Vol. 27, No. 6: 979-980. (Source: Photomedicine and Laser Surgery)

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Calendar of Laser Courses and Meetings

Photomedicine and Laser Surgery — Sun, 27 Dec 2009 00:38:41 +0100

Photomedicine and Laser Surgery Dec 2009, Vol. 27, No. 6: 981-982. (Source: Photomedicine and Laser Surgery)

Potential Antidepressant Effect of Infrared Irradiation has Seasonality

Photomedicine and Laser Surgery — Sun, 27 Dec 2009 00:38:26 +0100

Photomedicine and Laser Surgery Dec 2009, Vol. 27, No. 6: 943-946. (Source: Photomedicine and Laser Surgery)

The Effects of Helium-Neon Light Therapy on Healing of Partial Osteotomy of the Tibia in Streptozotocin Induced Diabetic Rats

Photomedicine and Laser Surgery — Sun, 27 Dec 2009 00:35:47 +0100

Photomedicine and Laser Surgery Dec 2009, Vol. 27, No. 6: 907-912. (Source: Photomedicine and Laser Surgery)

Save up to $48,373 by Having LASIK Vision Correction

Dishler Laser — Sat, 26 Dec 2009 15:49:01 +0100

Quite candidly, the perception of many people as well as our own was that a primary determinant of the affordability of LASIK was strongly related to the cost of having it done. We wonder if centers that charge slightly more or less than others benefit or are hurt by placing financial stress on the patients who elect to choose them. We are concerned about how important the cost of the procedure weighs in the average patient's decision. Therefore, we decided to model the costs of LASIK at our current charges for the procedure as compared to the costs of glasses, contacts, solutions, and routine eye care to see just how much of a premium was involved for those who choose this option. We expected LASIK to cost more, and were very surpised just the opposite.&...

Photodynamic therapy as an adjunctive treatment for chronic periodontitis: a meta-analysis

Lasers in Medical Science — Fri, 18 Dec 2009 16:41:34 +0100

Abstract Several antimicrobial strategies have been proposed in response to the alarming rise in antimicrobial resistance of periodontal pathogens. Antimicrobial photodynamic therapy (a-PDT) is a promising novel approach that has been used in several clinical applications including in the treatment of periodontal diseases. The aim of this review was to systematically investigate the effectiveness of a-PDT as an adjuvant treatment for chronic periodontitis. The guidelines of the Quality of Reporting of Meta-analyses (QUOROM) conference statement were followed in the preparation of this meta-analysis. An electronic search for randomized controlled trials (RCTs) that investigated the combined use of scaling and root planing (SRP) and a-PDT in comparison with SRP alone was per...

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Influence of different power outputs of erbium, chromium:yttrium–scandium–gallium–garnet laser and acid etching on shear bond strengths of a dual-cure resin cement to enamel

Lasers in Medical Science — Thu, 17 Dec 2009 07:04:19 +0100

Abstract The purpose of the study was to determine if the irradiation of enamel with laser of different output powers might be viable alternatives to acid etching for the bonding of resin luting agents. Seventy-seven maxillary central incisors, extracted for periodontal reasons, were used. The enamel was etched with an erbium, chromium:yttrium–scandium–gallium–garnet (Er,Cr:YSGG) laser operated at one of six power outputs (0.5 W, 0.75 W, 1 W, 1.5 W, 1.75 W and 2 W) or with 38% phosphoric acid. Seventy teeth were used for the bond strength experiments, and the remaining seven (one specimen for each group) were used for scanning electron microscopy (SEM) to determine the topography and morphology of the treated enamel surface. The acid-etch...

Five Secrets of "WOW LASIK" Vision

Dishler Laser — Tue, 15 Dec 2009 16:05:26 +0100

PREPARATION- This includes a thorough evaluation, education and meeting with the patient to be sure that we can meet their expectations and to limit their expectations to what is reasonable to expect. For instance we cannot be as assured of a perfect result in extremely bad corrections and we also warn about reading vision in patients who are a bit older. Preparation also includes putting in temporary punctal plugs in every patient since some degree of dry eye immediately post operatively is common and best to be avoided. We also use a proprietary mixture of medications tailored to the patient to make them comfortable and relaxed for their procedure. The secret is to avoid the unexpected and make the flow of experience for the patient as pleasant as possible. EXPE...

Treatment of resistant port wine stains (PWS) with pulsed dye laser and non-contact vacuum: a pilot study

Lasers in Medical Science — Tue, 15 Dec 2009 06:49:30 +0100

The objective of this study was to test the enhancement in the efficacy of PWS treatment with PDL and Serenity Pro while vacuum is being utilized in the non-contact, blood-enrichment mode. Fifteen patients with resistant PWS underwent 1–4 treatments (interval of 5–20 weeks) under general anesthesia with a 595-nm PDL at 10–14 J/cm2, 1.5–3 ms pulse duration, and 7-mm spot size. Lesion blanching with DCD chilling and with vacuum were photographed and compared. Better blanching of various degrees was observed on resistant PWS with the blood-enrichment technique in seven out of 11 patients who returned for follow-up. There were no cases of decrease in efficacy. Blood enrichment with the Serenity Pro non-contact vacuum technology has the potential of enhancing the capabili...

Coming Out of the WOOD(s)work

Dishler Laser — Thu, 10 Dec 2009 15:53:14 +0100

Maybe not tomorrow or next month, but right now if you go to the website for TLC vision, you will see Tiger Wood's smiling face, dressed up to play golf, and being quoted that he choose TLC for his vision correction and now he sees 20/20 without glasses. While it is impressive that LASIK has helped to make someone who had extremely bad vision (the advertisement says he was -11.00 which is really extreme) now have vision so good that he can be perhaps the best in the world, it was not really TLC that fixed his vision. TLC is a company which is actually a corporation that began in Canada, and owns a chain of laser vision correction centers throughout North America. One particular doctor, who happened to work at TLC did correct Tiger's eyes, and that does not mean that...

Production of Reactive Oxygen Species from Photosensitizers Activated with Visible Light Sources Available in Dental Offices

Photomedicine and Laser Surgery — Thu, 10 Dec 2009 01:15:55 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

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Effect of LED Phototherapy of Three Distinct Wavelengths on Fibroblasts on Wound Healing: A Histological Study in a Rodent Model

Photomedicine and Laser Surgery — Thu, 10 Dec 2009 01:07:04 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Efficacy of Topical Aminolevulinic Acid Photodynamic Therapy for the Treatment of Verruca Planae

Photomedicine and Laser Surgery — Thu, 10 Dec 2009 00:51:01 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Comparison of Microleakage of Three Adhesive Systems in Class V Composite Restorations Prepared with Er,Cr:YSGG Laser

Photomedicine and Laser Surgery — Thu, 10 Dec 2009 00:51:01 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Acute Low Back Pain with Radiculopathy: A Double-Blind, Randomized, Placebo-Controlled Study

Photomedicine and Laser Surgery — Thu, 10 Dec 2009 00:50:47 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Laser Photobiomodulation of Wound Healing: A Review of Experimental Studies in Mouse and Rat Animal Models

Photomedicine and Laser Surgery — Tue, 08 Dec 2009 19:01:17 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

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Ultrashort pulsed laser ablation and stripping of freeze-dried dermis

Lasers in Medical Science — Tue, 08 Dec 2009 06:46:52 +0100

Abstract Plasma-mediated laser ablation and dissection of freeze-dried human dermis using an ultrashort pulsed laser of pulse width 900 fs and wavelength 1,552 nm were investigated. The surface ablation line width and depth in relation to irradiation fluence and pulse overlap rate were characterized and measured by scanning electron microscopy. The ablation threshold fluence for freeze-dried dermis was determined as 8.32 J/cm2 and the incubation factor subject to pulse train irradiation was found to be 0.54. Histological examination showed no thermal damage with single line ablation. Even with multiline ablation, thermal damage was insignificant and the lateral damage zone was generally within 10 µm with 100 continuously repeated line scans. Ultrashort ...

Invest in LASIK: the Cost is Reasonable and the Results are Priceless

Dishler Laser — Mon, 07 Dec 2009 16:04:03 +0100

Many people have sticker shock about the cost of LASIK vision correction. While there is some disparity in pricing, when one compares the cost of this procedure to that of other options, it is surprisingly affordable. This depends on many factors which includes whether and the type of contacts being worn, the type and cost of glasses, and other considerations. In general, most people pay about a dollar a day for contact lens wear when one considers the cost of contacts, solutions, exams, etc. This is about the cost of a LASIK procedure over ten years. Now if you also have a pair of backup glasses every two years, it can make the costs higher and therefore the amortization period shorter, say 7-8 years. For those who wear toric contact lenses, these ...

Entrance To Vision

Dishler Laser — Fri, 04 Dec 2009 15:52:48 +0100

The Neuroptics pupillometer is a state of the art device used to measure the size of the pupil in real life conditions. We acquired this technology in relation to a new FDA study that is beginning soon at Dishler Laser Institute. In learning about this device we are so impressed that we have decided to use it for all of our LASIK evaluations to measure the pupil of the eye prior to surgery. This device uses infrared light to measure the pupil 39 times per second for two seconds and then averages these readings to give an average pupil size which is accurate to 0.1 mm with a digital readout. The human pupil is never stationary and constantly is changing in size depending on lighting conditions. Even when the light level is constant, there are pupil fluctuations...

Laser Therapy for Toenail Fungus: New and Hard to Find

Aesthetic Lasers — Fri, 04 Dec 2009 06:11:39 +0100

Toenail fungus, aka onychomycosis, is a very common problem. The numbers vary depending on the source, but we are talking 20-30 million in the U.S. alone. Most are mild cases, which are not accounted for because people do not go to the doctor to diagnose their smelly feet with ugly deformed nails. Several laser companies are [...]Post from: Aesthetic Laser OffersLaser Therapy for Toenail Fungus: New and Hard to Find (Source: Aesthetic Lasers)

Zinc phthalocyanine-loaded PLGA biodegradable nanoparticles for photodynamic therapy in tumor-bearing mice

Lasers in Medical Science — Thu, 03 Dec 2009 12:50:06 +0100

Abstract Nanoparticles formulated from the biodegradable copolymer poly(lactic-coglycolic acid) (PLGA) were investigated as a drug delivery system to enhance tissue uptake, permeation, and targeting of zinc(II) phthalocyanine (ZnPc) for photodynamic therapy. Three ZnPc nanoparticle formulations were prepared using a solvent emulsion evaporation method and the influence of sonication time on nanoparticle shape, encapsulation and size distribution, in vitro release, and in vivo photodynamic efficiency in tumor-bearing mice were studied. Sonication time did not affect the process yield or encapsulation efficiency, but did affect significantly the particle size. Sonication for 20 min reduced the mean particle size to 374.3 nm and the in vitro release studies demonstr...

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Aspen LASIK Patients Choose Dishler LASIK as their "Go To" Doctor for Vision Correction

Dishler Laser — Sat, 28 Nov 2009 15:58:14 +0100

After 25+ years of practice with the last fifteen being almost exclusively LASIK, we have enjoyed meeting people from throughout the world as patients and many beyond the confines of Denver, and Colorado. Within the borders of Colorado, many patients have had vision correction from as far south as Pueblo and as far north as Fort Collins and beyond. Westward we have seen increasing patients coming from Grand Junction, and recently an increase from Telluride which is a really long drive to our location. While we appreciate each and every patient, it is noteworthy that Aspen has has a strong referral pattern which is due to several factors. One of our earliest LASIK referring practices is Aspen Vision Source which has offices in Aspen and Carbondale. Dr. Tim Baue...

The five MOST IMPORTANT changes in LASIK since it was invented are:

Dishler Laser — Mon, 23 Nov 2009 16:03:17 +0100

There have been five major advances in LASIK since it was first invented: 1. The use of eye trackers - The first LASIK procedures required the patient to fixate on a light and that was what was used to center the treatment. The invention of eye tracker technology allows the laser to be programmed to define the location of the pupil and when the treatment is started even if the eye moves, the laser stays centered on the pupil which gives treatments that are correctly centered over the optical portion of the eye. 2. Small spot scanning lasers - The first lasers and ones still in use today use a "broad beam" where the treatment laser beam is as large as the optical zone being treated and astigmatism is corrected by varying the shape of this beam. Although this is effective, ther...

Review of Fractional Photothermolysis: Treatment Indications and Efficacy

Aesthetic Lasers — Mon, 23 Nov 2009 14:58:49 +0100

As I continue to review the Medline English literature and recent international conferences regarding Fractional photothermolysis (FP) technology, applications, and indications, it becomes more obvious that this relatively new modality is one of the most significant milestones in laser technology and skin resurfacing. Successful conditions treated with non-ablative fractional lasers reported in the literature include [...]Post from: Aesthetic Laser OffersReview of Fractional Photothermolysis: Treatment Indications and Efficacy (Source: Aesthetic Lasers)

The Effects of Low Level Laser Irradiation on Gingival Inflammation

Photomedicine and Laser Surgery — Mon, 23 Nov 2009 02:01:20 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Why LASIK was Invented?

Dishler Laser — Sun, 22 Nov 2009 15:57:38 +0100

This simple question is profound, because it touches on an invention that has changed the way in which the world views vision correction and has helped millions of people worldwide to see better without the aid of glasses or contact lenses. For perhaps millions of years, much of human kind has suffered with vision problems. There are the serious eye diseases such as cataracts, glaucoma and a myriad of other problems. Beyond this is the simple fact that many people are unable to see clearly at distance, near, or both. This is from the imperfections of the eyeball as a camera and this was greatly helped over that last few hundred years by glasses and more recently in the last 50 years by contact lenses. Although with the advent of lasers, there was a hope that such technology could improve...

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Non-surgical periodontal therapy assisted by potassium–titanyl–phosphate laser: a pilot study

Lasers in Medical Science — Sat, 21 Nov 2009 08:29:35 +0100

Abstract As the American Academy of Periodontology indicates, the treatment of chronic periodontitis should be achieved in the least invasive manner through non-surgical periodontal therapy. However, complete removal of subgingival plaque and calculus is hindered with increasing probing depth (PD) and furcation involvement using hand, sonic or ultrasonic instruments. Many authors have suggested that the use of laser as an adjunct to scaling and root planing (SRP) might improve the effectiveness of conventional periodontal treatment. The aim of this study was to evaluate potassium–titanyl–phosphate (KTP) laser in non-surgical periodontal therapy. Seven hundred and thirty sites with probing depths of 4–6 mm were involved in the study. The sites were divided into f...

List of Reviewers Volume 6, 2009

Photodiagnosis and Photodynamic Therapy — Fri, 20 Nov 2009 00:00:00 +0100

(Source: Photodiagnosis and Photodynamic Therapy)

Chondrosarcoma of the hyoid treated with interstitial photodynamic therapy: Case study

Photodiagnosis and Photodynamic Therapy — Fri, 20 Nov 2009 00:00:00 +0100

Chondrosarcoma is a malignancy that is cartilaginous in origin and represents approximately 25% of all primary osseous neoplasms. Chondrosarcomas are rare with 90 new cases a year reported in the UK. Of these, only 10% occur in the head and neck. Peak incidence is between the ages of 30–50, with no apparent correlation with gender . (Source: Photodiagnosis and Photodynamic Therapy)

Future PDT

Photodiagnosis and Photodynamic Therapy — Fri, 20 Nov 2009 00:00:00 +0100

The future of PDT will build on our scientific and clinical success, expand to new horizons but, most importantly, will question and, I believe, significantly modify what we currently accept and term PDT. (Source: Photodiagnosis and Photodynamic Therapy)

23Na MRI longitudinal follow-up of PDT in a xenograft model of human retinoblastoma

Photodiagnosis and Photodynamic Therapy — Fri, 20 Nov 2009 00:00:00 +0100

Summary: Background: Photodynamic therapy is an established cancer treatment in which a photosensitizing agent is activated by exposure to light thus generating cytotoxic reactive oxygen species that cause cellular damage.Methods: A new photosensitizer synthesized at Curie Institute was used to treat retinoblastoma xenografts in mice, a glycoconjugated meso substituted porphyrin derivative, that showed some retinoblastoma cell affinity. The longitudinal follow-up of the tumors was carried out by 23Na MRI (without adding exogenous contrast agents) to map the extracellular compartment and to characterize cell packing. Two regimens were followed to target either blood vessels alone or blood vessels and cancer cells simultaneously.Results and conclusions: Only the protocol targeting both cance...

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A preliminary study of protoporphyrin-IX as a potential candidate for identification of lung cancer cells using fluorescence microscopy

Photodiagnosis and Photodynamic Therapy — Thu, 19 Nov 2009 00:00:00 +0100

Conclusions: Protoporphyrin-IX is a potentially useful tumor-staining molecular agent for fluorescent location of cancer cell in sputum samples from lung cancer patients. (Source: Photodiagnosis and Photodynamic Therapy)

Photodynamic therapy for localized infections—State of the art

Photodiagnosis and Photodynamic Therapy — Thu, 19 Nov 2009 00:00:00 +0100

Summary: Photodynamic therapy (PDT) was discovered over 100 years ago by observing the killing of microorganisms when harmless dyes and visible light were combined in vitro. Since then it has primarily been developed as a treatment for cancer, ophthalmologic disorders and in dermatology. However, in recent years interest in the antimicrobial effects of PDT has revived and it has been proposed as a therapy for a large variety of localized infections. This revival of interest has largely been driven by the inexorable increase in drug resistance among many classes of pathogen. Advantages of PDT include equal killing effectiveness regardless of antibiotic resistance, and a lack of induction of PDT resistance. Disadvantages include the cessation of the antimicrobial effect when the light is tur...

In vivo comparison of near infrared lasers for skin welding

Lasers in Medical Science — Tue, 17 Nov 2009 23:47:10 +0100

Abstract The skin closure abilities of near infrared lasers and suturing were compared by histological examination and mechanical tensile tests during a 21-day healing period. One-centimeter incisions on the dorsal skin of Wistar rats were treated by one of the closing techniques: (a) soldering, using an 809 nm diode laser (0.5 W, 5 s) with 25% bovine serum albumin (BSA) and 2.5 mg/ml indocyanine green (ICG); (b) direct welding with a 980 nm diode laser (0.5 W, 5 s); (c) direct welding with a 1,070 nm fiber laser (0.5 W, 5 s); (d) suturing. Six spots (79.61 J/cm2 for each spot) were applied through the incisions. Healing was inspected on the 1st, 4th, 7th, 14th, and 21st post-operative days. The closure index (CI), ther...

Laser Photobiomodulation of Wound Healing in Diabetic and Non-Diabetic Mice: Effects in Splinted and Unsplinted Wounds

Photomedicine and Laser Surgery — Mon, 16 Nov 2009 18:03:59 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

PDT in the UK; when will the NHS see the light? Photodynamic Therapy Workshop London 28th September 2009

Photodiagnosis and Photodynamic Therapy — Mon, 16 Nov 2009 00:00:00 +0100

(Source: Photodiagnosis and Photodynamic Therapy)

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Photodynamic therapy adjuvant to surgery in metastatic carcinoma in brain

Photodiagnosis and Photodynamic Therapy — Mon, 16 Nov 2009 00:00:00 +0100

Conclusion: Adjuvant repetitive PDT seems to offer an excellent local control of metastatic brain carcinomas with about 79% of patients succumb to the primary and only two out of fourteen died of brain recurrence with the best results obtained in lung cancer. (Source: Photodiagnosis and Photodynamic Therapy)

Photoantimicrobials—So what's stopping us?

Photodiagnosis and Photodynamic Therapy — Mon, 16 Nov 2009 00:00:00 +0100

Summary: In the face of increasing multi-drug resistant bacteria, both in healthcare and the community, new drugs or novel methods of decontamination are required. The use of light-activated drugs – photoantimicrobials – has been promoted at various points during the past decade or more but has not yet gained meaningful clinical acceptance. Photoantimicrobials offer advantages over conventional drugs in attacking bacteria at various sites, rather than just one, and in the intermediacy of reactive oxygen species, against which there is little possibility of resistance. (Source: Photodiagnosis and Photodynamic Therapy)

As Seen in Forbes Magazine Top 10 LASIK centers in the United States

Dishler Laser — Sun, 15 Nov 2009 15:49:50 +0100

In 1995 we were one of the first ten LASIK providers in the United States. This was a new procedure at that time almost 15 years ago, and since that time the success of that procedure has blossomed into an industry with over 10,000 LASIK providers today. It is certainly impossible to say who or where is the very best LASIK providers, but it is always good to be considered amongst the best. When one reviews the doctors and centers picked for the prestigious Goldline independent consumer research of best or most dependable LASER VISION providers in the last few years, it is obvious that they have picked very well recognized and credible choices. This year we were notified a few weeks ago, that we were selected by Goldline as one of only 10 LASIK practices in the entir...

Combined benzoporphyrin derivative monoacid ring photodynamic therapy and pulsed dye laser for port wine stain birthmarks

Photodiagnosis and Photodynamic Therapy — Fri, 13 Nov 2009 00:00:00 +0100

Conclusions: Preliminary results indicate that PDT+PDL is safe and may offer improved PWS treatment efficacy. Additional studies are warranted. (Source: Photodiagnosis and Photodynamic Therapy)

EPPM-2 conference report: The 2nd Conference of the European Platform for Photodynamic Medicine (EPPM) in conjunction with the 13th Bi Annual Congress of the European Society for Photobiology (ESP), 5th–10th September 2009, Wroclaw

Photodiagnosis and Photodynamic Therapy — Mon, 09 Nov 2009 00:00:00 +0100

This joint meeting began with an opening ceremony on September 4th in the magnificent Aula of the University of Wroclaw. Professor Piotr Ziolkowski, Chairman of the local organising committee welcomed delegates and guests, following which there was a reception in which all present had the opportunity to renew old friendships. (Source: Photodiagnosis and Photodynamic Therapy)

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One Picture is Worth a Thousand Words

Dishler Laser — Sat, 07 Nov 2009 15:48:35 +0100

www.dishler.com/pages/technology#zywave (Source: Dishler Laser)

Changes in Cell Viability of Wounded Fibroblasts following Laser Irradiation in Broad-Spectrum or Infrared Light

Laser Chemistry — Tue, 03 Nov 2009 16:02:49 +0100

Conclusion. Wounded cells irradiated in IR light showed an undesirable thermal effect that was proportional to the duration of exposure. (Source: Laser Chemistry)

Managing Postmastectomy Lymphedema with Low-Level Laser Therapy

Photomedicine and Laser Surgery — Sun, 01 Nov 2009 12:16:59 +0100

Photomedicine and Laser Surgery Oct 2009, Vol. 27, No. 5: 763-769. (Source: Photomedicine and Laser Surgery)

Assessment of Neodymium:Yttrium-Aluminum-Garnet (Nd:YAG) Laser Fiber Wear and Tear Grade During Visual Laser Ablation of Prostatic Adenoma

Photomedicine and Laser Surgery — Sun, 01 Nov 2009 12:16:42 +0100

Photomedicine and Laser Surgery Oct 2009, Vol. 27, No. 5: 799-805. (Source: Photomedicine and Laser Surgery)

Dental Enamel Irradiated with Infrared Diode Laser and Photo-Absorbing Cream: Part 2—EDX Study

Photomedicine and Laser Surgery — Sun, 01 Nov 2009 12:16:21 +0100

Photomedicine and Laser Surgery Oct 2009, Vol. 27, No. 5: 771-782. (Source: Photomedicine and Laser Surgery)

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Laser Light May Improve the Symptoms of Oral Lesions of Cicatricial Pemphigoid: A Case Report

Photomedicine and Laser Surgery — Sun, 01 Nov 2009 12:15:07 +0100

Photomedicine and Laser Surgery Oct 2009, Vol. 27, No. 5: 825-828. (Source: Photomedicine and Laser Surgery)

Calendar of Laser Courses and Meetings

Photomedicine and Laser Surgery — Sun, 01 Nov 2009 12:12:15 +0100

Photomedicine and Laser Surgery Oct 2009, Vol. 27, No. 5: 831-832. (Source: Photomedicine and Laser Surgery)

Photomedicine and LLLT Literature Watch

Photomedicine and Laser Surgery — Sun, 01 Nov 2009 12:12:14 +0100

Photomedicine and Laser Surgery Oct 2009, Vol. 27, No. 5: 829-829. (Source: Photomedicine and Laser Surgery)

Synergistic Increase in Osteosarcoma Cell Sensitivity to Photodynamic Therapy with Aminolevulinic Acid Hexyl Ester in the Presence of Hyperthermia

Photomedicine and Laser Surgery — Sun, 01 Nov 2009 12:11:46 +0100

Photomedicine and Laser Surgery Oct 2009, Vol. 27, No. 5: 791-797. (Source: Photomedicine and Laser Surgery)

Molecular Perspectives of Wound Healing—Cellular Models*

Photomedicine and Laser Surgery — Sun, 01 Nov 2009 12:11:27 +0100

Photomedicine and Laser Surgery Oct 2009, Vol. 27, No. 5: 693-694. (Source: Photomedicine and Laser Surgery)

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Effect of Low-Level Laser Therapy on Malondialdehyde Concentration in Random Cutaneous Flap Viability

Photomedicine and Laser Surgery — Fri, 30 Oct 2009 16:12:53 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Investigation of the Effect of GaAs Laser Therapy on Lateral Epicondylitis

Photomedicine and Laser Surgery — Fri, 30 Oct 2009 16:02:49 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

How to know if you will be happy with LASIK vision correction

Dishler Laser — Fri, 30 Oct 2009 16:00:30 +0100

If you are the kind of person who is extremely difficult to satisfy, who demands absolute perfection, and who gets easily flustered with even the slightest delay, then LASIK may not be your best option. If on the other hand, you are looking for a substantial improvement in your vision to improve your quality of life which you overall find satisfactory except for the problems associated with glasses or contact lenses, then you are probably a good LASIK candidate. If you meet this test, then the next step is to find your best option for obtaining your vision improvement. To be happy with LASIK you must believe that you made a reasoned choice in LASIK providers. Most importantly, try to find a good referral source to a doctor beyond advertising o...

Therapeutic Effects of Low-Level Laser on Lateral Epicondylitis from Differential Interventions of Chinese-Western Medicine: Systematic Review

Photomedicine and Laser Surgery — Fri, 30 Oct 2009 10:55:45 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Low-Level Laser Therapy for Implants Without Initial Stability

Photomedicine and Laser Surgery — Tue, 27 Oct 2009 22:10:35 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

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Evaluation of Oxygen Consumption of Culture Medium and In Vitro Photodynamic Effect of Talaporfin Sodium in Lung Tumor Cells

Photomedicine and Laser Surgery — Tue, 27 Oct 2009 22:05:10 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Effect of Biostimulation on Healing of Bone Defects in Diabetic Rats

Photomedicine and Laser Surgery — Tue, 27 Oct 2009 21:58:01 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Validating a Nonacupoint Sham Control for Laser Treatment of Knee Osteoarthritis

Photomedicine and Laser Surgery — Tue, 27 Oct 2009 21:58:00 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Effect of Two Kinds of Er:YAG Laser Systems on Root Surface in Comparison to Ultrasonic Scaling: An in Vitro Study

Photomedicine and Laser Surgery — Tue, 27 Oct 2009 21:49:52 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Root Surface Biomodification With Nd:YAG Laser For The Treatment Of Gingival Recession With Subepithelial Connective Tissue Grafts

Photomedicine and Laser Surgery — Tue, 27 Oct 2009 21:46:52 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

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The Association of Low and High Laser Treatments on Self-Inflicted Lip Injury: A Case Report

Photomedicine and Laser Surgery — Tue, 27 Oct 2009 21:42:27 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Effects of Combined Use of Light Irradiation and 35% Hydrogen Peroxide for Dental Bleaching on Human Enamel Mineral Content

Photomedicine and Laser Surgery — Tue, 27 Oct 2009 18:25:54 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

FT-Raman and Energy Dispersive X-Ray Fluorescence Spectrometric Analyses of Enamel Submitted to 38% Hydrogen Peroxide Bleaching, an Acidic Beverage, and Simulated Brushing

Photomedicine and Laser Surgery — Tue, 27 Oct 2009 18:21:58 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Are there advantages to i-LASIK?

Dishler Laser — Mon, 26 Oct 2009 16:33:37 +0100

It is important to distinguish real technological advancements, from marketing hype and this is especially true when it comes to laser vision correction. There is not much question that I-LASIK is the latter of these in that it was the matching of two existing technologies. The VISX laser was one of the first approved lasers, and although there have been some improvements, it is still a broad beam first generation technology which is limited as compared to many newer lasers that have been available for a number of years since. Yes, there is a good chance of getting to 20/20 vision with VISX but no greater than any other platform, and it has limitations in the type of ablation that can be created. This gets into subtler issues than just 20/20. For instance, it ...

Effect of GaAlAs Laser Irradiation on Enzyme Activity

Photomedicine and Laser Surgery — Mon, 26 Oct 2009 14:54:22 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

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Healing of Surgical Wounds Made with λ970-nm Diode Laser Associated or Not with Laser Phototherapy (λ655 nm) or Polarized Light (λ400–2000 nm)

Photomedicine and Laser Surgery — Mon, 26 Oct 2009 14:50:40 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Treatment of Faun-Tail Naevus with Intense Pulsed Light

Photomedicine and Laser Surgery — Mon, 26 Oct 2009 14:50:39 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Shear Bond Strength of Repair Composite Resin to an Acid-Etched and a Laser-Irradiated Feldspathic Ceramic Surface

Photomedicine and Laser Surgery — Fri, 23 Oct 2009 15:25:01 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Fractional Photothermolysis: Non-Ablative and Ablative

Aesthetic Lasers — Fri, 23 Oct 2009 14:14:27 +0100

The concept of non-ablative fractional photothermolysis was introduced to the market in 2003 as an answer to the need for effective, yet low risk, skin resurfacing techniques. Unlike conventional ablative (CO2 and Erbium) and non-ablative lasers, fractional ablative and non-ablative photothermolysis treats only a fraction of the skin, leaving up to a maximum of 95% [...]Post from: Aesthetic Laser OffersFractional Photothermolysis: Non-Ablative and Ablative (Source: Aesthetic Lasers)

Laser Florence 2009

Lasers in Medical Science — Thu, 22 Oct 2009 05:58:22 +0100

Content Type Journal ArticleDOI 10.1007/s10103-009-0735-7 Journal Lasers in Medical ScienceOnline ISSN 1435-604XPrint ISSN 0268-8921 Journal Volume Volume 24 Journal Issue Volume 24, Supplement 1 / October, 2009 (Source: Lasers in Medical Science)

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Who is the 'LASIK patient counselor' and why should you care?

Dishler Laser — Wed, 21 Oct 2009 15:16:31 +0100

Concierge is a French term and originally applied only to hotels as a person who helped guests with services related to their stay. In America and elsewhere the term has been extended to a broader range of meanings. The Wikipedia defines a "Hospital Concierge" as: 'In hospitals, concierge services are becoming increasingly available. A hospital concierge provides similar services to those of a hotel concierge, but serve patients and employees as well'. It is not so important what the term is but rather the qualifications and duties of the person involved. At Dishler Laser Institute, our patient counselor, Dana C., is a registered nurse (RN). She has worked at our facility for a number of years in a variety of nursing duties including scr...

Nd:YAG Laser Treatment of Warts

Aesthetic Lasers — Wed, 21 Oct 2009 14:13:46 +0100

Warts are ugly but they are common, and there are many ways and means to remove them. I prefer to use a YAG laser to remove warts. Surprisingly, this simple technique is not very common among dermatologists who typically freeze warts with nitrogen. That is painful and not very effective as in many cases more than [...]Post from: Aesthetic Laser OffersNd:YAG Laser Treatment of Warts (Source: Aesthetic Lasers)

Ultrasonographic evaluation of plantar fasciitis after low-level laser therapy: results of a double-blind, randomized, placebo-controlled trial

Lasers in Medical Science — Wed, 21 Oct 2009 02:55:38 +0100

Abstract The aim of this study was to investigate the effect of low-level laser therapy (LLLT) on plantar fasciitis documented by the ultrasonographic appearance of the aponeurosis and by patients’ pain scores. Thirty individuals with diagnosis of unilateral plantar fasciitis were enrolled in a randomized, double-blind, placebo-controlled trial, but 25 participants completed the therapeutic protocol. The contralateral asymptomatic fascia was used as control. After enrolment, symptomatic individuals were randomly assigned to receive LLLT, or identical placebo, for 6 weeks. Ultrasonography was performed at baseline and after completion of therapy. The subjective subcalcaneal pain was recorded at baseline and after treatment on a visual analogue scale (VAS). After LLLT...

Nothing to fear but fear itself

Dishler Laser — Sun, 18 Oct 2009 14:40:19 +0100

It was not that long ago that in the American West where we now reside, patients were given something to bite on, like a soft bullet to reduce the pain of surgery. Modern anesthesia has made remarkable advances in that while unconscious patients can be treated oblivious to their surroundings. It is a different matter for LASIK vision correction. Here we need the patient to cooperate and to fixate on a lighted target in order to properly perform the procedures. We also have advanced in that there are eye trackers, all laser procedures, and much improved technology but in the end we require an awake and cooperative patient to perform this procedure. One of the benefits of having a surgery center as opposed to an office environment is that we can confidently give our p...

Bite The Bullet

Dishler Laser — Sat, 17 Oct 2009 14:35:57 +0100

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Long-term follow-up of topical 5-aminolaevulinic acid photodynamic therapy diode laser single session for non-melanoma skin cancer

Photodiagnosis and Photodynamic Therapy — Fri, 16 Oct 2009 00:00:00 +0100

Summary: Photodynamic therapy (PDT) is based on the association of a light source and light sensitive agents in order to cause the selective death of tumor cells. To evaluate topical 5-aminolaevulinic acid (5-ALA) and diode laser photodynamic single session therapy single session for non-melanoma skin cancer (NMSC), a long-term follow-up was performed. Nineteen Bowen's disease (BD) and 15 basal cell carcinoma (BCC) lesions were submitted to 6-h topical and occlusive 20% 5-ALA plus DMSO and EDTA, and later were exposed to 630nm diode laser, 100 or 300Jcm−2 dose. At 3 months tumor-free rate was 91.2% (31/34) whereas at 60 months, 57.7% (15/26), slightly higher in BCC (63.6%; 7/11). The relation between the reduction of the clinical response and the increase of tumor dimension observed at 1...

Influence of the Use of Laser Phototherapy (λ660 or 790 nm) on the Survival of Cutaneous Flaps on Diabetic Rats

Photomedicine and Laser Surgery — Thu, 15 Oct 2009 12:25:45 +0100

Photomedicine and Laser Surgery , Vol. 0, No. 0. (Source: Photomedicine and Laser Surgery)

Martino TV

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

Dr. Dishler appears weekly on Martino TV as a vision expert. Martino TV is on channel 31 from 9-10 AM on Tuesday mornings. He is also on Channel 2 from 11AM until noon. Tune in to find out the latest on LASIK. His appearances can be found on the channel 31 website or KDVR Denver. During his first appearance Dr. Dishler explained how LASIK works and what is different about the blade free or all laser LASIK. Video that was taken at his office was shown demonstrating how the procedure is done. On the second appearance June 9th one of Dr. Dishler's patients, Brian, explained his experiences just three weeks before during his procedure and how he now can see better than 20/20 in both eyes. Brian wants to be a pilot in the air force, and his excellent vi...

20/20 vision and what it means in laser vision correction

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

The number which is most familiar to people when we discuss vision is 20/20. This is so much so that there is a television show with this title. 20/20 simply means being able to see at 20 feet what a "normal person" can see at 20 feet. There is a line on the eye chart which signifies this level of vision. Therefore 20/40, the minimum vision to drive, is that vision which can be seen at 20 feet that a "normal person" could see if they were farther away, in fact twice as far at 40 feet. While this is important, and a standard measure of vision, it does not explain all of what is important in vision. For instance, it says nothing about near vision, and in older patients, presbyopia or difficulty seeing at near is a consideration. A...

Astigmatism First

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

Did you ever wonder why almost everyone can hear the same, but so many people don’t see the same? Most people love the sound they hear from an Apple i-Pod™, but many cannot enjoy a movie without their glasses or contact lenses. Somehow, evolution just hasn’t completely perfected vision, at least for many of us. And that is especially true when it comes to astigmatism, the most challenging form of vision imperfection. Astigmatism is when the front of the eye is not round like it is supposed to be. There just isn’t any good reason for an eye to be warped, and we just don’t see this kind of distortion when it comes to ears. Of course vision is a lot more complicated than hearing, and therefore this is understandable. Mayb...

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What LASIK costs

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

There are several web sites that track the cost of LASIK procedures by geographic region, by year, and by other metrics. It is surprising how little the costs of this procedure have changed over the last 10 years, and how little it varies between providers. There is a range of costs which are certainly more in places like New York or Los Angeles, but in the midwest including Colorado, these costs are fairly stable. In general LASIK costs between $1000 and $3000 per eye or $2000 to $6000 total. For the quality centers which offer blade free LASIK with state of the art lasers, the average cost is about $2500 per eye or $5000. Our charges are significantly lower than these averages. Some centers market directly to perspective patients with "teaser"...

Choose the Doctor that Doctors choose

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

Doctor Dishler began performing LASIK in 1995 as the first doctor in Colorado, and the region to perform LASIK. In 2000 he was the first to perform IntraLASIK, the all blade free LASIK procedure. Over the years we have led in the laser vision correction field, including participation in numerous clinical studies, and being admitted to the organization "Trusted LASIK Surgeons." Throughout this period, most of the patients that have been treated by Dr. Dishler have been referred to him by other doctors in Denver, Centennial, Aurora, and Littleton as well as Highlands Ranch and other areas in metro Denver. Many patients have come from Boulder, Colorado Springs, Loveland, Fort Collins and mountain areas such as Aspen and Grand Junction. Most of these patients ...

Dry Eye

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

The eye is covered in a tear layer, and we all know that tears can be increased with stress, sorrow, or even the wind, sometimes rolling down the cheek in a torrent. The tears both keep the eye clean and also are the critical front optical surface of the eye. What is less appreciated, is that a decrease in tears can actually result in blurred vision. This blurry vision is many times thought to be due to some other problem than a dry eye cause. We have to understand that the tears are actually made of three separate layers. The outer or lipid oil layer slows tear evaporation. The main layer is the liquid layer which is mostly water and some solutes such as sodium which is what makes tears salty. The inner layer which smoothly attaches the tears is a...

Guaranteed Lowest Price

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

There is a perception that if one goes to a large corporate entity, one will get better value than a small boutique individually owned store. While this has proven true for big box stores like Walmart or Home Depot, it is not necessarily true for service based businesses. As an example, large corporate tax preparation entities are not going to be less expensive than your local tax accountant. In the field of medical services, we rarely have to consider cost since most medical care is covered, at least in part, by health insurance. For health care that is outside of that system, we can look at plastic surgery for example and find that the costs for most procedures are fairly constant and the differences are largely due to the reputation of the doctor involved. When i...

Location, Location, Location

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

Denver, Colorado is what we say when people ask where we are located. True, we are not actually within Denver city limits, but we are located at what many believe is the most convenient spot for everyone within the greater Denver metropolitan area to easily come and visit. In normal conditions, you can reach our office within 15-20 minutes from downtown Denver, Cherry Creek, most of Aurora, Centennial, and Highlands Ranch. And within 30 minutes we are from Arvada, Wheatridge and Castle Rock or Denver International Airport. This is because we close to the intersection of all the major freeways in the Denver area. We are virtually on I-25 between I-225 to the north, and I-470 to the south. This means convenient travel from the newly improved highway system...

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Measure Twice, Cut Once

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

Great results require great data. When we reach the step of applying laser energy to the eye, we are on almost the last step of a checklist that has many steps preceding it. To begin with we must take a careful history of the patient, their vision, and their eye and medical history. We need to understand their visual needs, what they are currently wearing (contact lenses or glasses or nothing) and how effective these have been. Then we want to understand what the patients expectations are with laser vision (ususally LASIK) correction, make sure that they are a suitable candidate mentally and physically for this procedure, and discuss alternatives and options that are available to them. They need to decide whether to have one eye done at a time or both the same...

LASIK -- What does it mean?

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

LASIK is an acronym which means the letters each stand for a word. In this case it is Laser Assisted Stromal In-situ Keratomileusis. This is definitely a mouthful, and when we were in the early 1990's trying to come up with a word describing this procedure, this seemed to make sense. It was preceded by another acronym, ALK, which stood for Automated Lamellar Keratoplasty, and was the non-laser predecessor of the LASIK procedure. We began doing ALK in the early 1990's and this was a procedure where a flap was made with a microkeratome, some tissue was cut using the same microkeratome with some special settings, and the flap was replaced. It worked fairly well, but when lasers came along, it seemed obvious that the increased accuracy of the laser would make this...

Dishler Introduces Latisse

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

We have signed on with Allergan Pharmaceuticals to dispense Latisse for our patients in Denver, Centennial, Aurora and from Colorado Springs and Fort Collins who wish to have longer, thicker, and darker eyelashes. We have received numerous requests from existing patients to offer this product, and although it does not have the "gravity" of LASIK or laser vision correction, it is something that many of our female patients have been requesting. Since Latisse can only be prescribed by medical doctors (MD) and not optometrists (OD) we are also providing this for patients referred by our network of co-managing Optometrists. Tomorrow I am going for my weekly segment on the Tom Martino Show on Channel 31 and channel 2 in Denver, to introduce our Latisse program, and to...

Blade free LASIK is better LASIK

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

LASIK has been a breakthrough in vision correction in that it is quick, virtually pain free and in most cases eliminates the need for glasses or contact lenses. The achilles heel of LASIK was always the first step, making a corneal flap. Here was the non-laser part and in about 50% of cases this technique based on technology that is about 50 years old, is still in use today. Basically a motor driven electric disposable razor blade cuts the cornea to remove the top layers and allows the laser to treat the inner cornea with the flap replaced and in hours the eye is functionally healed and vision is restored. The cutting of this flap is in most cases reliable, but as one can imagine, sometimes there can be problems which include tears, holes, incomplete and mis-created...

We are Denver LASIK

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

For all of the convenient restaurants and hotels near our office and a map please go here to find more about Denver's first Denver LASIK laser vision correction center. (Source: Dishler Laser)

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LASIK alternative: Advanced Surface Ablation

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

Patients need to have their individual needs evaluated from both a safety and effectiveness standpoint when considered for laser vision correction surgery. The first laser treatment, and the one that the laser companies thought was going to be the only laser treatment was to treat the front of the eye with the laser and let a new skin or epithelium heal with the eye patched. Although this was the most simple approach, it had several limitations. For one, there was considerable discomfort, and this made it none to popular. There were other problems such as haze or scarring of the cornea, decreased vision, and others. When LASIK came along, as an upgrade to a previous procedure, ALK, it seemed to resolve most of these problems and was quickly adopted as the trea...

Take a tour of the LASIK facility

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

When you visit the Dishler Laser Institute, you will take an elevator to the 12th floor where you will enter to a panoramic view of the Rocky Mountains (we used to be called Laser Institute of the Rockies). You will be greeted by our receptionists/patient counselors who are highly trained to not only get you checked in, but to answer your questions and make you feel at home. You can use your cell phone, our courtesy phone, have a cup of java, and relax in our spacious waiting area. You will be seen by a patient counselor, an ophthalmic technician, and either Dr. Brownfield or Dr. Petraitis during your free screening. You will have some quick an painless diagnostic scans taken of your eyes, answer a few questions about your general and eye health, and see a short vid...

Denver Lasik Blog summer LASIK special

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

Contact us at Dishler Laser Institute to learn more about our summer special. Not valid with any other offers. This is definitely the best deal you can get on the most advanced laser vision correction in Denver Colorado and it has brought patients from throughout the region to enjoy this opportunity for better eyesight. If you live anywhere within a few hundred miles of Denver Colorado, you might want to consider this offer. And with financing from either Care Credit or Chase, we have the most competitive rates for vision correction affordability, including no interest financing for 24 months (wac). We also work with hundreds of referring doctors and you can get LASIK or PRK from us at this unbelievable price including your own personal doctor's fees which ar...

What is a femtosecond and why is that important?

Dishler Laser — Wed, 14 Oct 2009 14:59:22 +0100

Back in the year 2000 (almost 10 years ago) I was approached by some people that I knew in the vision correction industry and was told that they were working on a new laser which among other things could be a better way to do LASIK. Intrigued, I flew to San Diego and watched Dr. Lee Nordan (now retired) perform some of the first uses of this new device, a femtosecond laser, to make a corneal flap. It was much different than the production devices we have today, slower for one thing, but it did make cornea flaps with light, which was a really neat trick. The company which had just started was called Intralase, and the core of its competence was drawn from scientists and physicists who had worked on this project at the University of Michigan. I became one of the group of th...