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Correction of astigmatism after penetrating keratoplasty using the Acri.Comfort toric intraocular lensEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
(Source: Clinical and Experimental Optometry)
Source: Clinical and Experimental Optometry - November 12, 2009 Category: Opthalmology Authors: Michael Statham, Andrew Apel, David Stephensen Source Type: journals

CooperVision Inc. - ClearSight 1-Day Toric - Class 3 RecallEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
ClearSight(TM) 1-Day (ocufilcon D) Toric 30 daily disposable contact lenses for astigmatism --- Name and Address on Label: CooperVision Hamble, SO31 4RF, UK, and Scottsville, NY 14546 USA --- Each lens is supplied sterile in a blister containing buffered saline solution. The blister is labeled with the base curve, diameter, dioptric power, manufacturing lot number, and expiration date of the lens. ClearSight contact lenses are made from a material containing 55% water and 45% ocufilcon D, a random copolymer of 2-hydroxyethylmethacrylate and methacrylic acid. The lenses have a tint (VAT Blue 6) which is added to make the le...
Source: Medical Device Recalls since July 07, 2006 - November 10, 2009 Category: Medical Equipment Source Type: organizations

The Multifaceted Career of Louis Borsch [Special Article]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
John Louis Borsch Jr, MD (1873-1929), was an ophthalmologist from Philadelphia who spent most of his career in France. During his lifetime he was probably best known as the inventor of the first fused bifocal lens, which was marketed very successfully as the Kryptok lens. He may be better known today for performing cataract surgery on Mary Cassatt (1844-1926), the American Impressionist artist, and on James Joyce (1882-1941), the Irish author. Little known, but remarkable, is his thesis for his second medical degree, Le Traitement Chirurgical de l’Astigmie (The Surgical Treatment of Astigmatism). (Source: Archives of Opthalmology)
Source: Archives of Opthalmology - November 9, 2009 Category: Opthalmology Authors: Ravin, J. G. Tags: Ophthalmology, Ophthalmology, Other, Humanities, History of Medicine Special Article Source Type: journals

Bayesian Estimation of the Axial Position in Astigmatism-Based Three-Dimensional Particle TrackingEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Accurate estimation of the axial position of a molecule using a single lateral image remains a challenge in fluorescent single particle tracking. Here, a principled algorithm for the Bayesian estimation of the axial position of a molecule in three-dimensional astigmatism-based particle tracking is proposed. This technique uses the data from a calibration image set to derive the position without assuming a functional form for the abberated defocusing curve. Using a calibration image set from forty 57 nm beads, the axial position is calculated, and the error associated with position estimation is discussed. This metho...
Source: Research Letters in Optics - November 5, 2009 Category: Physics Source Type: journals

AstigmatismEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
(Source: eMedicineHealth.com)
Source: eMedicineHealth.com - November 5, 2009 Category: Journals (General) Source Type: info

Phakic Intraocular Lens Implantation for the Correction of Myopia: A Report by the American Academy of OphthalmologyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: Phakic IOL implantation is effective in the correction of myopia and myopic astigmatism. In cases of high myopia of −8 diopters or more, pIOLs may provide a better visual outcome than keratorefractive surgeries and better safety than refractive lens exchange. The short-term rates of complications and loss of BSCVA are acceptable. Comprehensive preoperative evaluation and long-term postoperative follow-up examinations are needed to monitor for and prevent serious complications, and to establish long-term safety.Financial Disclosure(s): Proprietary or commercial disclosure may be found after the references. (S...
Source: Ophthalmology - November 1, 2009 Category: Opthalmology Authors: David Huang, Steven C. Schallhorn, Alan Sugar, Ayad A. Farjo, Parag A. Majmudar, William B. Trattler, David J. Tanzer Tags: Ophthalmic Technology Assessment Source Type: journals

November consultation #3Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This patient must be approached cautiously. In the absence of ectasia, we can assume that the high astigmatism in the left eye is congenital. Unilateral mixed astigmatism often causes a monofixation syndrome with subtle amblyopia. Monofixation syndrome is characterized by suppression of central vision in the eye with the blurred retinal image but maintenance of peripheral binocular fusion. That is likely the case here, with a mild reduction in CDVA to 20/25 in the left eye. The diagnosis of monofixation syndrome can be established by Worth 4-dot testing. Peripheral stimulation shows fusion (the patient sees 4 dots) and cen...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Robert Maloney Tags: Consultation Section Source Type: journals

November consultation #5Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This patient has been functionally monocular for most (if not all) of his adult life due to mild amblyopia and undercorrected presumed mixed astigmatism in the left eye. Before a decision to perform refractive surgery is made, 3 important considerations must be addressed. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Jonathan H. Talamo Tags: Consultation Section Source Type: journals

Customized aspheric intraocular lenses calculated with real ray tracingEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: Real ray tracing calculated the exact geometry of custom IOLs to provide the minimum wavefront error, going beyond simple diopter information. Results show spherical aberration can be significantly reduced with aspheric IOLs. However, the limited possible reduction of total HOAs, even perfectly positioned custom aspheric IOLs, may be a reason for the unclear results in studies assessing the potential benefit to visual performance of currently used aspheric IOLs. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Jens Einighammer, Theo Oltrup, Elisabeth Feudner, Thomas Bende, Benedikt Jean Tags: Laboratory Science Source Type: journals

Surgical flap amputation for central flap necrosis after laser in situ keratomileusisEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A 52-year-old man had uneventful bilateral myopic laser in situ keratomileusis (LASIK) with planned monovision. Three months later, the left eye was retreated to improve the near vision. On postoperative day 1, the uncorrected distance visual acuity (UDVA) was 0.95 and the patient reported mild ocular pain. Stage 2 diffuse lamellar keratitis was observed. Despite hourly prednisolone instillation, the UDVA decreased to 0.1 and central flap necrosis syndrome was diagnosed. The flap was lifted and stromal bed irrigation performed. One month later, the UDVA was 0.05 with a hyperopic shift of +3.25 diopters and the flap, which ...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Montserrat Garcia-Gonzalez, Raquel Gil-Cazorla, Miguel A. Teus Tags: Case Reports Source Type: journals

Influence of neodymium:YAG laser capsulotomy on ocular wavefront aberrations in pseudophakic eyes with hydrophilic and hydrophobic intraocular lensesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: Neodymium:YAG laser capsulotomy significantly reduced the wavefront RMS in the hydrophobic IOL subgroup but not in the hydrophilic IOL subgroup. The difference in the wavefront before capsulotomy may originate from a difference in the healing response of the capsular bag between the 2 IOL types. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Jos J. Rozema, Carina Koppen, Veva de Groot, Marie-José Tassignon Tags: Articles Source Type: journals

Effect of age on changes in anterior chamber depth and volume after laser in situ keratomileusisEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Purpose: To evaluate the effect of age on anterior chamber depth (ACD) and anterior chamber volume (ACV) after laser in situ keratomileusis (LASIK) for myopia.Setting: Department of Ophthalmology, Keio University School of Medicine, and a private clinic, Tokyo, Japan.Methods: In this retrospective study, patients who had uneventful LASIK for myopia or myopic astigmatism were divided into 2 groups: younger (younger than 40 years) and older (40 years and older). Central corneal thickness, central corneal true net power, ACV, and central ACD were measured using a rotating Scheimpflug camera preoperatively and 1 month postoper...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Ryo Nishimura, Kazuno Negishi, Murat Dogru, Megumi Saiki, Hiroyuki Arai, Ikuko Toda, Takefumi Yamaguchi, Kazuo Tsubota Tags: Articles Source Type: journals

Intrastromal corneal ring segment implantation for high astigmatism after penetrating keratoplastyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Purpose: To evaluate the safety and efficacy of intracorneal ring segments (ICRS) for high astigmatism after penetrating keratoplasty (PKP).Setting: Department of Ocular Surface and Inflammation, Ophthalmology, Hospital Clínico San Carlos, Complutense University, Madrid, Spain.Methods: This retrospective noncomparative study comprised eyes with high post-PKP astigmatism (>4.00 diopters [D]), contact lens intolerance, and a minimum follow-up of 24 months who had ICRS (Kerarings) implantation by mechanical stromal dissection. Corrected distance visual acuity (CDVA), refractive astigmatism, spherical equivalent (SE), surgica...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Pedro Arriola-Villalobos, David Díaz-Valle, Jose Luis Güell, María Teresa Iradier-Urrutia, Iñigo Jiménez-Alfaro, Ricardo Cuiña-Sardiña, José Manuel Benítez-del-Castillo Tags: Articles Source Type: journals

Independent control of beam astigmatism and ellipticity using a SLM for fs-laser waveguide writingEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We have used a low repetition rate (1 kHz), femtosecond laser amplifier in combination with a spatial light modulator (SLM) to write optical waveguides with controllable cross-section inside a phosphate glass sample. The SLM is used to induce a controllable amount of astigmatism in the beam ... (Source: Optics Express)
Source: Optics Express - October 30, 2009 Category: Physics Authors: A. Ruiz de la CruzA. FerrerW. GaweldaD. PuertoM. Galván SosaJ. SiegelJ. Solis Source Type: journals

Estimation accuracy of surgically induced astigmatism on the cornea when neglecting the posterior corneal surface measurementEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: Neglecting the posterior corneal surface measurement may lead to significant deviation in the corneal SIA estimation after phacoemulsification in a proportion of eyes. (Source: Acta Ophthalmologica)
Source: Acta Ophthalmologica - October 30, 2009 Category: Opthalmology Authors: Li-Sheng Cheng, Ching-Yao Tsai, Ray Jui-Fang Tsai, Shiow-Wen Liou, Jau-Der Ho Source Type: journals

Influence of suture regularity on corneal astigmatism after penetrating keratoplastyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: The origin of corneal astigmatism after penetrating keratoplasty is multifaceted. Regular stitch length and stitch advancement on the surface appears to improve the optical quality of the graft after suture removal. Factors such as stitch depth, suture tension and variations in wound construction might also be important predictors of corneal astigmatism after penetrating keratoplasty. (Source: Acta Ophthalmologica)
Source: Acta Ophthalmologica - October 30, 2009 Category: Opthalmology Authors: Jesper Hjortdal, Anders Søndergaard, Walther Fledelius, Niels Ehlers Source Type: journals

Are there advantages to i-LASIK?Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
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...
Source: Dishler Laser - October 26, 2009 Category: Laser Surgery Authors: Jon Dishler Source Type: consumer

Combination 20 and 23-gauge transconjunctival vitrectomy: A new approachEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Kumar Atul, Kakkar Aashish, Jindal Shveta, Rajesh RIndian Journal of Ophthalmology 2009 57(6):459-461The advent of smaller gauge instrumentation allows for minimally invasive vitreoretinal surgery (MIVS) as compared to conventional pars plana vitrectomy. Sutureless posterior segment surgery has the advantages of faster wound healing, minimal surgical trauma, decreased convalescence period besides reduced postoperative astigmatism; however, slower gel removal and limited peripheral vitreous dissection are disadvantages with smaller gauge systems. We herein describe a new technique combining 23-gauge and 20-gauge vitrectomy ...
Source: Indian Journal of Ophthalmology - October 21, 2009 Category: Opthalmology Authors: Kumar Atul, Kakkar Aashish, Jindal Shveta, Rajesh R Source Type: journals

Use of Glasses Common After Cataract SurgeryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Patients who experience small levels of overall refractive error in either eye -- especially astigmatism -- following bilateral monofocal intraocular lens implantation will likely need to wear distance glasses. Hypermetropia in the worse eye predicts reading-glasses dependence in this population. Reuters Health Information (Source: Medscape Medical News Headlines)
Source: Medscape Medical News Headlines - October 19, 2009 Category: Consumer Health News Tags: Ophthalmology Source Type: news

Refractive errors in children and young adults with Down's syndromeEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: The incidence of refractive errors in Macedonian children and young adults with DS was similar to that in Asian children. Compared with White (Caucasian) and Asian children with DS, Macedonian children and young adults exhibited lower incidences of hypermetropia and myopia, and a higher incidence of astigmatism, in which oblique astigmatism represented the predominant type. (Source: Acta Ophthalmologica)
Source: Acta Ophthalmologica - October 15, 2009 Category: Opthalmology Authors: Ljubic Antonela, Trajkovski Vladimir Source Type: journals

What to do when your perfect vision gets blurry at age 40Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
A brief anatomy and optics discussion is needed because this is not really easy to understand. In contrast to nearsightedness where the eye is too long for the corneal shape, in farsightedness the opposite occurs. Light rays want to focus behind the eye rather than on the retina where they belong, and this blurs the vision. Unlike nearsightedness, the youthful eye can overcome this with the lens inside the eye which can focus and overcome this defect in the shape. However, as we age, the lens loses this ability, and things get out of focus. For these eyes this is more true the closer som...
Source: Dishler Laser - October 14, 2009 Category: Laser Surgery Authors: Jon Dishler Source Type: consumer

Astigmatism FirstEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
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&...
Source: Dishler Laser - October 14, 2009 Category: Laser Surgery Authors: Jon Dishler Source Type: consumer

20/20 vision and what it means in laser vision correctionEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
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...
Source: Dishler Laser - October 14, 2009 Category: Laser Surgery Authors: Jon Dishler Source Type: consumer

Martino TVEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
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 ...
Source: Dishler Laser - October 14, 2009 Category: Laser Surgery Authors: Jon Dishler Source Type: consumer

CLINICAL SCIENCES: Endothelial Cell Loss and Surgically Induced Astigmatism After Sutureless Large-Incision Manual Cataract Extraction (SLIMCE)Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions SLIMCE is a safe and effective manual cataract extraction technique with low rates of surgically induced astigmatism and endothelial cell loss. In view of its low cost, SLIMCE may have a potential role in reducing cataract blindness in developing countries. (Source: Archives of Opthalmology)
Source: Archives of Opthalmology - October 12, 2009 Category: Opthalmology Authors: Lam, D. S. C., Rao, S. K., Fan, A. H., Congdon, N. G., Wong, V., Liu, Y., Lam, P. T. H. Tags: Ophthalmology, Ophthalmological Disorders, Cataracts/ Lens, Ophthalmological Procedures, Ophthalmological Procedures, Other, Public Health, World Health Clinical Sciences Source Type: journals

Endothelial Cell Loss and Surgically Induced Astigmatism After Sutureless Large-Incision Manual Cataract Extraction (SLIMCE) [Clinical Sciences]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions SLIMCE is a safe and effective manual cataract extraction technique with low rates of surgically induced astigmatism and endothelial cell loss. In view of its low cost, SLIMCE may have a potential role in reducing cataract blindness in developing countries. (Source: Archives of Opthalmology)
Source: Archives of Opthalmology - October 12, 2009 Category: Opthalmology Authors: Lam, D. S. C., Rao, S. K., Fan, A. H., Congdon, N. G., Wong, V., Liu, Y., Lam, P. T. H. Tags: Ophthalmology, Ophthalmological Disorders, Cataracts/ Lens, Ophthalmological Procedures, Ophthalmological Procedures, Other, Public Health, World Health Clinical Sciences Source Type: journals

Characteristics of peripheral refractive errors of myopic and non-myopic chinese eyes.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Interest in peripheral refractive errors has increased as it was hypothesized that peripheral hypermetropia might provide a stimulus for axial elongation (Smith et al., 2005), this study was to determine relative peripheral refractive errors (RPRE) of the eyes of a group of Chinese children and adults. Central and peripheral (20, 30, 40 degrees at nasal, temporal, superior and inferior meridians of retina) refractive errors were obtained from cyclopleged eyes of 40 children and 42 adults with a Shin- Nippon Auto-refractor. Only right eyes were considered. Central spherical equivalent (M) was used to classify the eyes a...
Source: Vision Research - October 9, 2009 Category: Opthalmology Authors: Chen X, Sankaridurg P, Donovan L, Lin Z, Li L, Martinez A, Holden B, Ge J Tags: Vision Res Source Type: journals

Optimal refraction with monofocal intraocular lenses: no beneficial effect of astigmatismEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: In monofocal pseudophakia the highest possible VAs over the most extended fixation ranges may be achieved with slight myopic refractions without astigmatic components. (Source: Acta Ophthalmologica)
Source: Acta Ophthalmologica - October 1, 2009 Category: Opthalmology Authors: Kristian Naeser, Jesper Hjortdal Source Type: journals

The effect of Nd:YAG laser posterior capsulotomy on ocular wave front aberrations.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
CONCLUSIONS: Nd:YAG laser posterior capsulotomy causes significant decrease in ocular wave front aberrations measured using the Nidek-OPD scan aberrometer, which can account for a better optical quality after the procedure. Further research to examine the impact of wave front aberrations in visual function after Nd:YAG laser posterior capsulotomy is needed. PMID: 19789587 [PubMed - in process] (Source: Canadian Journal of Ophthalmology)
Source: Canadian Journal of Ophthalmology - September 30, 2009 Category: Opthalmology Authors: Levy J, Lifshitz T, Klemperer I, Knyazer B, Ashkenazy Z, Kratz A, Belfair N Tags: Can J Ophthalmol Source Type: journals

Accuracy of the Welch Allyn SureSight for measurement of magnitude of astigmatism in 3- to 7-year-old childrenEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: The SureSight does not provide an accurate, quantitative measure of amount of astigmatism. However, it does allow accurate categorization of amount of astigmatism as ≤2.00 D, >2.00 D, or >3.00 D, and it has high measurement success rate in young children. (Source: Journal of AAPOS)
Source: Journal of AAPOS - September 30, 2009 Category: Opthalmology Authors: Erin M. Harvey, Velma Dobson, Joseph M. Miller, Candice E. Clifford-Donaldson, Tina K. Green, Dawn H. Messer, Katherine A. Garvey Tags: Major Articles Source Type: journals

Effect of corneal astigmatism on intraocular pressure measurement using ocular response analyzer and Goldmann applanation tonometerEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions Both IOPcc and IOPG measured with ORA were less affected by the amount of corneal astigmatism, and the GAT-IOP readings were significantly higher in eyes with greater corneal astigmatism, suggesting that IOPcc as well as IOPG may be helpful for accurate IOP measurements in eyes with some corneal astigmatism. Content Type Journal ArticleCategory GlaucomaDOI 10.1007/s00417-009-1202-7Authors Mana Hagishima, University of Kitasato School of Medicine Department of Ophthalmology 1-15-1 Kitasato, Sagamihara Kanagawa 228-8555 JapanKazutaka Kamiya, University of Kitasato School of Medicine Departmen...
Source: Graefe's Archive for Clinical and Experimental Ophthalmology - September 29, 2009 Category: Opthalmology Tags: Graefe's Archive for Clinical and Experimental Ophthalmology Source Type: journals

Monte Carlo Simulation of Expected Outcomes With the AcrySof Toric Itraocular LensEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This simulation demonstrated that random errors in alignment, surgically induced astigmatism, and lens rotation slightly reduced the overall effect of the toric lens. BMC Ophthalmology (Source: Medscape Ophthalmology Headlines)
Source: Medscape Ophthalmology Headlines - September 28, 2009 Category: Opthalmology Tags: Ophthalmology Source Type: info

AJO History of Ophthalmology Series: Thomas Young and the OptometerEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The first significant instrument used by modern eye doctors was probably the optometer invented by Thomas Young (1773 to 1829) and used by him to measure subjectively his own refraction and accommodation. (He was a myope of −4 diopters with astigmatism.) The optometer eventually evolved into the modern system of automatic refractors. (Source: American Journal of Ophthalmology)
Source: American Journal of Ophthalmology - September 25, 2009 Category: Opthalmology Tags: Original Articles Source Type: journals

Spectacle use after routine cataract surgery [Original articles]Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: Following bilateral monofocal intraocular lens implantation, small levels of overall refractive error, in either eye, particularly astigmatism, predict distance-spectacle dependence, whereas spherical ammetropia in the range of ±1.0 D does not. Hypermetropia in the worse eye, but not astigmatism, predicts reading-spectacle dependence. (Source: British Journal of Ophthalmology)
Source: British Journal of Ophthalmology - September 24, 2009 Category: Opthalmology Authors: Wilkins, M R, Allan, B, Rubin, G, Moorfields IOL Study Group Tags: Ophthalmologic surgical procedures, Lens and zonules, Optic nerve, Optics and refraction Original articles Source Type: journals

Overcorrection after femtosecond-assisted astigmatic keratotomy in a post-Descemet-stripping automated endothelial keratoplasty patientEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Astigmatic arcuate keratotomy is a common surgical technique to reduce corneal astigmatism after penetrating keratoplasty. Recently, femtosecond laser technology has been introduced, providing a new surgical modality for several corneal procedures; eg, femtosecond astigmatic keratotomy. Preliminary results show that the application of femtosecond technology for astigmatic keratotomy after penetrating keratoplasty is a simple and effective technique. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - September 24, 2009 Category: Opthalmology Authors: Sonia H. Yoo, George D. Kymionis, Takeshi Ide, Vasilios F. Diakonis Tags: Correspondence Source Type: journals

Toric intraocular lens versus opposite clear corneal incisions to correct astigmatism in eyes having cataract surgeryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Mendicute et al. compared implantation of a toric intraocular lens (IOL) and paired 2.75 mm/3.20 mm opposite clear corneal incisions (OCCIs) with implantation of a spherical IOL in cases with coexisting cataract and astigmatism. The mean refractive cylinder decreased significantly from preoperatively to postoperatively in both groups. Based on similar principles of incisional surgery, we performed OCCI with phakic IOL (pIOL) implantation to correct high myopia and astigmatism. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - September 24, 2009 Category: Opthalmology Authors: Jeewan S. Titiyal, Tushar Agarwal, Vishal Jhanji Tags: Correspondence Source Type: journals

Excimer laser correction of moderate to high astigmatism with a non-wavefront-guided aberration-free ablation profile: Six-month resultsEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: Excimer laser LASIK using a non-wavefront-guided aberration-free ablation profile yielded excellent visual outcomes. The preoperative astigmatism was reduced to subclinical values with no clinically relevant induction of HOA. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - September 24, 2009 Category: Opthalmology Authors: Maria Clara Arbelaez, Camila Vidal, Samuel Arba-Mosquera Tags: Articles Source Type: journals

Accommodation: The dynamic range of visionEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Since intraocular lenses (IOLs) became clinically relevant, the goal for innovators has been to reproduce the characteristics of the young crystalline lens in an implant. The story of the IOL, while generating a spectacular transformation in the practice of ophthalmic surgery, is one of an evolutionary process compressed into but 2 generations. Although IOL designs have made progressive advances, only compromise solutions to the problem of reproducing accommodation have achieved a degree of clinical acceptance. The originality of innovators in refractive and diffractive bifocal and multifocal IOLs, hinged-optic IOLs, twin-...
Source: Journal of Cataract and Refractive Surgery - September 24, 2009 Category: Opthalmology Authors: Emanuel S. Rosen Tags: From the Editor Source Type: journals

[Original articles] Spectacle use after routine cataract surgeryEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: Following bilateral monofocal intraocular lens implantation, small levels of overall refractive error, in either eye, particularly astigmatism, predict distance-spectacle dependence, whereas spherical ammetropia in the range of ±1.0 D does not. Hypermetropia in the worse eye, but not astigmatism, predicts reading-spectacle dependence. (Source: British Journal of Ophthalmology)
Source: British Journal of Ophthalmology - September 23, 2009 Category: Opthalmology Authors: Wilkins, M R, Allan, B, Rubin, G, Moorfields IOL Study Group Tags: Ophthalmologic surgical procedures, Lens and zonules, Optic nerve, Optics and refraction Original articles Source Type: journals

Vistakon - Class 3 RecallEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Acuvue Advance for Astigmatism Diagnostic Product. Expected Primary Package Label: Lot B0077KM 3.75D 1.7cyl. 180 Axis Exp. 2014/07. Actual Primary Package Label: Lot B007NV5 7.50D 1.75cyl. 20 Axis Exp. 2014/12. Product was provided to Eye Care professionals to use as diagnostic replenishment. Product used by Eye Care professionals in the fitting process. (Source: Medical Device Recalls since July 07, 2006)
Source: Medical Device Recalls since July 07, 2006 - September 19, 2009 Category: Medical Equipment Source Type: organizations

Effect of higher order aberrations on contrast sensitivity function in myopic eyesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion Spherical and fourth-order aberrations significantly affect CSF in myopic eyes. However, the effect of myopia on CSF cannot be attributed only to HOAs. Other factors such as neural elements in the visual pathway should be taken into account. Content Type Journal ArticleCategory Clinical InvestigationDOI 10.1007/s10384-009-0677-4Authors Sepehr Feizi, Shahid Beheshti Medical University, MC Ophthalmic Research Center, Labbafinejad Medical Center Tehran IranFarid Karimian, Shahid Beheshti Medical University, MC Ophthalmic Research Center, Labbafinejad Medical Center Tehran Iran Journal Ja...
Source: Japanese Journal of Ophthalmology - September 18, 2009 Category: Opthalmology Tags: Japanese Journal of Ophthalmology Source Type: journals

Comparison of the AcrySof SA60 spherical intraocular lens and the AcrySof Toric SN60T3 intraocular lens outcomes in patients with low amounts of corneal astigmatismEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: The AcrySof Toric IOL provides a significant improvement in postoperative astigmatism and UCVA when compared statistically with its spherical counterpart for patients with low degrees of corneal astigmatism. (Source: Clinical and Experimental Ophthalmology)
Source: Clinical and Experimental Ophthalmology - September 18, 2009 Category: Opthalmology Authors: Michael Statham, Andrew Apel, David Stephensen Tags: Original Articles Source Type: journals

A comparative clinical study of the visual results between three types of multifocal lensesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions The implantation of tested multifocal intraocular lenses provides good near and distance visual acuity. We did not observe any statistically significant differences between the tested multifocal intraocular lenses with regard to best-corrected distance visual acuity, presence of glare and halo, as well as satisfaction with vision. Content Type Journal ArticleCategory CataractDOI 10.1007/s00417-009-1177-4Authors Stanislawa Gierek-Ciaciura, Silesian Medical University Department of Ophthalmology Ul. Ceglana 35 Katowice PolandLukasz Cwalina, Silesian Medical University Department of Ophthalmo...
Source: Graefe's Archive for Clinical and Experimental Ophthalmology - September 17, 2009 Category: Opthalmology Tags: Graefe's Archive for Clinical and Experimental Ophthalmology Source Type: journals

Refractive Errors in a Rural Chinese Adult Population: The Handan Eye StudyEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusions: Myopia affects more than one quarter of rural Chinese persons ≥30 years of age. Myopia is more common in younger people and is associated with different risk factors than in older people.Financial Disclosure(s): The authors have no proprietary or commercial interest in any materials discussed in this article. (Source: Ophthalmology)
Source: Ophthalmology - September 10, 2009 Category: Opthalmology Authors: Yuan Bo Liang, Tien Yin Wong, Lan Ping Sun, Qiu Shan Tao, Jie Jin Wang, Xiao Hui Yang, Ying Xiong, Ning Li Wang, David S. Friedman Tags: Original Articles Source Type: journals

First-order design of off-axis reflective ophthalmic adaptive optics systems using afocal telescopesEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Expressions for minimal astigmatism in image and pupil planes in off-axis afocal reflective telescopes formed by pairs of spherical mirrors are presented. These formulae which are derived from the marginal ray fan equation can be used for designing laser cavities, spectrographs and adaptive optics ... (Source: Optics Express)
Source: Optics Express - September 6, 2009 Category: Physics Authors: Armando Gómez-VieyraAlfredo DubraDaniel Malacara-HernándezDavid R. Williams Source Type: journals

Effect of astigmatism on states of polarization of aberrant stochastic electromagnetic beams in turbulent atmosphereEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The effect of astigmatism on states of polarization of aberrant stochastic electromagnetic beams in turbulent atmosphere is investigated. Using the Gaussian-Schell model source with astigmatism, the analytical formula for the degree of polarization, the orientation angle, and the degree of ... (Source: Journal of the Optical Society of America A)
Source: Journal of the Optical Society of America A - September 1, 2009 Category: Physics Authors: Jia LiYanru ChenQi ZhaoMuchun Zhou Source Type: journals

Refractive astigmatism in eyes with pseudoexfoliation syndrome.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
CONCLUSIONS: Significant refractive and ocular residual astigmatism were found in pseudoexfoliation syndrome. PMID: 19787613 [PubMed - in process] (Source: European Journal of Ophthalmology)
Source: European Journal of Ophthalmology - August 31, 2009 Category: Opthalmology Authors: Ornek K, Güllü R, Yilmazbas P Tags: Eur J Ophthalmol Source Type: journals

[Original articles] Corneal reshaping and myopia progressionEmail this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Conclusion: Results confirm previous reports of slowed eye growth following corneal reshaping contact lens wear. (Source: British Journal of Ophthalmology)
Source: British Journal of Ophthalmology - August 23, 2009 Category: Opthalmology Authors: Walline, J J, Jones, L A, Sinnott, L T Tags: Optic nerve, Optics and refraction Original articles Source Type: journals

September consultation #3Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This patient has no red flags; therefore, I would recommend a reattempt of LASIK with a customized flap in the left eye. Photorefractive keratectomy would not be the best option because of the risk for haze associated with high myopic correction. In addition, when PRK is performed over LASIK flaps and for this amount of correction, ablation to the old stromal bed can occur, resulting in tissue slivers and irregular astigmatism. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - August 18, 2009 Category: Opthalmology Authors: Mohamed Abou Shousha Tags: Consultation Section Source Type: journals

September consultation #4Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This 32-year-old patient with mild myopia and astigmatism has excellent corrected distance visual acuity in both eyes. Ultrasound pachymetric measurements show that it would be safe to perform LASIK with the femtosecond laser, which is the best option to correct this patient's refractive problem. The patient had successful LASIK in the right eye with an early postoperative UDVA of 20/20. In the left eye, the LASIK procedure was postponed due to suction loss caused by a dense OBL. Despite this complication, no changes in refraction or topography were noted. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - August 18, 2009 Category: Opthalmology Authors: George D. Kymionis Tags: Consultation Section Source Type: journals