Cataract Removal
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Combined Deep Topical and Superior Subconjunctival Anesthesia for Extracapsular Cataract Extraction in a Rural Eye Camp.
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CONCLUSION: In a rural eye camp, deep topical anesthesia with subconjunctival anesthesia for ECCE/IOL and topical anesthesia for Phaco/IOL provide effective anesthesia for cataract surgery.
PMID: 19923536 [PubMed - as supplied by publisher] (Source: Anesthesia and Analgesia)
Source: Anesthesia and Analgesia - November 20, 2009 Category: Anesthesiology Authors: Tinnungwattana U, Gorvanich S, Kulvichit K, Tulvatana W Tags: Anesth Analg Source Type: journals
Cataract Surgery Unlikely to Affect the Progression of AMDEmail this article to a colleague.
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In patients with non-neovascular age-related macular degeneration (AMD), cataract surgery is not
associated with an increased risk of AMD progression. In addition, dietary fats may have differential effects on
the risk of AMD, according to two studies in the November issue of the Archives of Ophthalmology. (Source: Modern Medicine)
Source: Modern Medicine - November 16, 2009 Category: Journals (General) Source Type: info
Does cataract surgery make eye disease worse?Email this article to a colleague.
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NEW YORK (Reuters Health) - Cataract surgery does not appear to worsen the course of age-related macular degeneration (AMD), a progressive loss of vision due to deterioration of nerve tissue in the retina, a new study shows. (Source: Reuters: Health)
Source: Reuters: Health - November 13, 2009 Category: Consumer Health News Tags: healthNews Source Type: news
Single-Injection Percutaneous Peribulbar Anesthesia with a Short Needle as an Alternative to the Double-Injection Technique for Cataract Extraction.Email this article to a colleague.
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Conclusion: The single-injection technique for percutaneous peribulbar anesthesia with a short needle is a suitable alternative to the double-injection technique for cataract surgery.
PMID: 19910620 [PubMed - as supplied by publisher] (Source: Anesthesia and Analgesia)
Source: Anesthesia and Analgesia - November 12, 2009 Category: Anesthesiology Authors: Ghali AM, Hafez A Tags: Anesth Analg Source Type: journals
Elevated serum IL-23 correlates with intraocular inflammation after cataract surgery in patients with Vogt-Koyanagi-Harada disease.Email this article to a colleague.
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CONCLUSIONS: Our data indicate that serum IL-23 levels are significantly elevated in VKH vs. control patients and strongly associated with postoperative intraocular inflammation.
PMID: 19910285 [PubMed - as supplied by publisher] (Source: The British Journal of Ophthalmology)
Source: The British Journal of Ophthalmology - November 11, 2009 Category: Opthalmology Authors: Jiang S, Liu X, Luo L, Qu B, Huang X, Xu L, Lin Y, Ye S, Liu Y Tags: Br J Ophthalmol Source Type: journals
No Increase in Macular Degeneration after Cataract Surgery (CME/CE)Email this article to a colleague.
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Cataract surgery does not increase the risk of progression of age-related macular degeneration, a prospective study found. Previous observational and case-control studies had suggested an acceleration in degeneration after surgery. (Source: MedPage Today Ophthalmology)
Source: MedPage Today Ophthalmology - November 10, 2009 Category: Opthalmology Source Type: news
Aging eye disorder no worse with cataract surgeryEmail this article to a colleague.
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Cataract surgery might not speed up age-related macular degeneration as previously thought, a new study suggests. (Source: CBC | Health)
Source: CBC | Health - November 10, 2009 Category: Consumer Health News Source Type: news
The world's most common operationEmail this article to a colleague.
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As a number of as 10 million people around the world suffer from cataracts. Thomas Kohnen of the Goethe University in Frankfurt and his coauthors discuss cataract surgery with the implantation of an artificial lens in the current issue of Deutsches rzteblatt International (Dtsch Arztebl Int 2009; 106[43]: 695and#65533;)........ (Source: Medicineworld.org: New Article Alert)
Source: Medicineworld.org: New Article Alert - November 10, 2009 Category: Consumer Health News Source Type: info
The World's Most Common OperationEmail this article to a colleague.
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As many as 10 million people around the world suffer from cataracts. Thomas Kohnen of the Goethe University in Frankfurt and his coauthors discuss cataract surgery with the implantation of an artificial lens in the current issue of Deutsches Arzteblatt International (Dtsch Arztebl Int 2009; 106[43]: 695 - 702). Blindness is usually due to opacification of the lens. (Source: Health News from Medical News Today)
Source: Health News from Medical News Today - November 10, 2009 Category: Consumer Health News Tags: Eye Health / Blindness Source Type: news
The World's Most Common OperationEmail this article to a colleague.
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As many as 10 million people around the world suffer from cataracts. Thomas Kohnen of the Goethe University in Frankfurt and his coauthors discuss cataract surgery with the implantation of an artificial lens in the current issue of Deutsches Arzteblatt International (Dtsch Arztebl Int 2009; 106[43]: 695 - 702). Blindness is usually due to opacification of the lens. In Germany alone, more than 600,000 cataract operations are performed each year. (Source: Eye Health / Optometry News From Medical News Today)
Source: Eye Health / Optometry News From Medical News Today - November 10, 2009 Category: Opthalmology Tags: Eye Health / Blindness Source Type: news
Cataract Surgery Doesn't Worsen Macular Degeneration: StudyEmail this article to a colleague.
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Title: Cataract Surgery Doesn't Worsen Macular Degeneration: StudyCategory: Health NewsCreated: 11/9/2009 4:10:00 PMLast Editorial Review: 11/10/2009 (Source: MedicineNet Senior Health General)
Source: MedicineNet Senior Health General - November 10, 2009 Category: Geriatrics Source Type: consumer
Cataract Surgery Doesn't Worsen Macular Degeneration: StudyEmail this article to a colleague.
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Title: Cataract Surgery Doesn't Worsen Macular Degeneration: StudyCategory: Health NewsCreated: 11/9/2009 4:10:00 PMLast Editorial Review: 11/10/2009 (Source: MedicineNet Eyesight General)
Source: MedicineNet Eyesight General - November 10, 2009 Category: Opthalmology Source Type: consumer
SMC does not recommend nepafenac (Nevanac®) due to non submission from companyEmail this article to a colleague.
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Source: Scottish Medicines Consortium (SMC)
Area: Evidence > Drug Specific Reviews
In the absence of a submission from the holder of the marketing authorisation, the Scottish Medicines Consortium (SMC) does not recommend the use of nepafenac (Nevanac®) within NHSScotland for prevention and treatment of postoperative pain and inflammation associated with cataract surgery. (Source: NeLM - Surgery)
Source: NeLM - Surgery - November 10, 2009 Category: Surgery Source Type: organizations
Cataract Surgery Does Not Worsen Age-Related Macular DegenerationEmail this article to a colleague.
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Results from a new study do not support the hypothesis that cataract surgery increases the risk for age-related macular degeneration progression. Medscape Medical News (Source: Medscape Ophthalmology Headlines)
Source: Medscape Ophthalmology Headlines - November 9, 2009 Category: Opthalmology Tags: Ophthalmology Source Type: info
Cataract Surgery Doesn't Worsen Macular Degeneration: StudyEmail this article to a colleague.
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Link likely due to fact that both eye conditions are age-related, researchers say (Source: Forbes.com Health News)
Source: Forbes.com Health News - November 9, 2009 Category: Consumer Health News Source Type: news
Cataract Surgery Doesn't Worsen Macular DegenerationEmail this article to a colleague.
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Link likely due to fact that both eye conditions are age-related, researchers say Source: HealthDay
Related MedlinePlus Topics: Cataract, Macular Degeneration (Source: MedlinePlus Health News)
Source: MedlinePlus Health News - November 9, 2009 Category: Consumer Health News Source Type: consumer
Progression of Age-Related Macular Degeneration After Cataract Surgery [Clinical Sciences]Email this article to a colleague.
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Conclusion The low incidence rate of neovascular AMD development between 1 week and 1 year after cataract surgery did not support the hypothesis that cataract surgery increases the risk of AMD progression. Several eyes appeared to have disease progression on postsurgery week 1 fluorescein angiograms, suggesting that many cases of presumed progression to neovascular AMD following cataract surgery may have been present prior to cataract surgery, but not recognized owing to lens opacity. (Source: Archives of Opthalmology)
Source: Archives of Opthalmology - November 9, 2009 Category: Opthalmology Authors: Dong, L. M., Stark, W. J., Jefferys, J. L., Al-Hazzaa, S., Bressler, S. B., Solomon, S. D., Bressler, N. M. Tags: Aging/ Geriatrics, Ophthalmology, Ophthalmological Disorders, cataracts/ Lens, Macular Degeneration, Ophthalmological Procedures, Ophthalmological Procedures, Other Clinical Sciences Source Type: journals
Risk of Cataract Extraction Among Adult Retinoblastoma Survivors [Epidemiology]Email this article to a colleague.
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Conclusions The results emphasize the importance of ophthalmologic examination of retinoblastoma survivors who have undergone radiotherapy. The risk of cataract extraction in untreated eyes with retinoblastoma is comparable with the risk of the general population. (Source: Archives of Opthalmology)
Source: Archives of Opthalmology - November 9, 2009 Category: Opthalmology Authors: Chodick, G., Kleinerman, R. A., Stovall, M., Abramson, D. H., Seddon, J. M., Smith, S. A., Tucker, M. A. Tags: Oncology, Oncology, Other, Ophthalmology, Ophthalmological Disorders, cataracts/ Lens, Ocular/ Adnexal Tumors, Retinal/ Chorioretinal Disorders, Retinal Detachment, Ophthalmological Procedures, Vitreoretinal surgery, Ophthalmological Procedures, Other, Ra Source Type: journals
Is the Risk of Incidence or Progression of Age-Related Macular Degeneration Increased After Cataract Surgery? [Editorial]Email this article to a colleague.
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(Source: Archives of Opthalmology)
Source: Archives of Opthalmology - November 9, 2009 Category: Opthalmology Authors: Klein, B. E. K. Tags: Aging/ Geriatrics, Ophthalmology, Ophthalmological Disorders, cataracts/ Lens, Macular Degeneration, Ophthalmological Procedures, Ophthalmological Procedures, Other, Patient-Physician Relationship/ Care, Patient-Physician Communication Editorial Source Type: journals
The Multifaceted Career of Louis Borsch [Special Article]Email this article to a colleague.
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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
{alpha}1-Adrenergic Blockers and Intraoperative Floppy-Iris Syndrome [Commentary]Email this article to a colleague.
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(Source: Archives of Opthalmology)
Source: Archives of Opthalmology - November 9, 2009 Category: Opthalmology Authors: Friedman, A. H. Tags: Aging/ Geriatrics, Men's Health, Men's Health, Other, Ophthalmology, Ophthalmological Disorders, cataracts/ Lens, Endophthalmitis, Retinal Detachment, Ophthalmological Procedures, Vitreoretinal surgery, Ophthalmological Procedures, Other, Drug Therapy, Ad Source Type: journals
The world's most common operationEmail this article to a colleague.
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(Deutsches Aerzteblatt International) As many as 10 million people around the world suffer from cataracts. Thomas Kohnen of the Goethe University in Frankfurt and his coauthors discuss cataract surgery with the implantation of an artificial lens in the current issue of Deutsches Ärzteblatt International. (Source: EurekAlert! - Medicine and Health)
Source: EurekAlert! - Medicine and Health - November 9, 2009 Category: Global & Universal Source Type: news
Cataract Surgery May Benefit Macular DegenerationEmail this article to a colleague.
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Individuals with varying degrees of age-related macular degeneration may benefit in terms of visual
acuity from cataract surgery, according to the Age-Related Eye Disease Study published in the November issue of
Ophthalmology. (Source: Modern Medicine)
Source: Modern Medicine - November 9, 2009 Category: Journals (General) Source Type: info
Aqueous humor level of sCD44 in patients with degenerative myopia and primary open-angle glaucomaEmail this article to a colleague.
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Background:
The transmembrane glycoprotein CD44 is a major hyaluronan cell surface receptor widely distributed in eye tissues and fluids. The shed ectodomain of CD44 is termed soluble CD44 and is toxic to human retinal ganglion cells in cell culture. The purpose of this study was to investigate the concentration of sCD44 in the aqueous humor (AH) of normal subjects, patients with primary open-angle glaucoma, and patients with degenerative myopia but without glaucoma, to determine if the molecule might serve as a protein marker of glaucoma.FindingsIn this case-control study, AH samples were collected from controls (n=16), p...
Source: BMC Research Notes - November 8, 2009 Category: Research Authors: Yasemin BudakMuberra AkdoganKagan Huysal Source Type: journals
Inadvertent use of water-based ink instead of trypan blue in cataract surgery.Email this article to a colleague.
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We report a case of iris atrophy and corneal endothelial decompensation following the inadvertent use of water-based ink for capsular staining during cataract surgery. The anterior chamber was thoroughly irrigated with balanced salt solution after the identification of the wrong dye. Phacoemulsification with minimal ultrasound energy and intraocular lens implantation were performed without complications, and the operation was completed. The patient finally developed bullous keratopathy and underwent penetrating keratoplasty 4 months later.
PMID: 19888890 [PubMed - in process] (Source: Cutaneous and Ocular Toxicology)
Source: Cutaneous and Ocular Toxicology - November 6, 2009 Category: Toxicology Authors: Kugu S, Erdogan G, Kandemir B, Dogan OK Tags: Cutan Ocul Toxicol Source Type: journals
New documentary explores life of Dr. KelmanEmail this article to a colleague.
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"Through My Eyes: The Charlie Kelman Story," a 1-hour documentary about the
ophthalmologist who developed the phacoemulsification technique of cataract removal, will premiere nationwide on
public television Jan. 20, 2010, at 9 p.m. (Source: Modern Medicine)
Source: Modern Medicine - November 4, 2009 Category: Journals (General) Source Type: info
Cataract Surgery Benefits AMD Patients; Steroid Drug May Restore Vision In DME Patients; Top Online Eye Health Forums AnalyzedEmail this article to a colleague.
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This month's Ophthalmology, the journal of the American Academy of Ophthalmology (Academy) reports on a national study that finds cataract surgery is likely to benefit patients with age-related macular degeneration (AMD) at all stages of the disease, on a clinical trial indication that the steroid (Source: Health News from Medical News Today)
Source: Health News from Medical News Today - November 3, 2009 Category: Consumer Health News Tags: Eye Health / Blindness Source Type: news
AMD Patients Benefit From Cataract Surgery, StudyEmail this article to a colleague.
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A new US study found that cataract surgery is likely to benefit pateints with all stages of age-related macular degeneration (AMD), from mild to advanced. (Source: Health News from Medical News Today)
Source: Health News from Medical News Today - November 2, 2009 Category: Consumer Health News Tags: Eye Health / Blindness Source Type: news
TGF{beta}/Smad4-Dependent and -Independent Regulation of Human Lens Epithelial Cells [Lens]Email this article to a colleague.
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Elucidating the role of Smad-dependent and -independent TGFβ signaling will advance the understanding of fibrotic disorders including posterior capsule opacification following cataract surgery. In the current study, the authors show that Smad4 is critical in cell transdifferentiation, but is not essential for TGFβ2-induced matrix contraction. (Source: Investigative Ophthalmology)
Source: Investigative Ophthalmology - November 2, 2009 Category: Opthalmology Authors: Dawes, L. J., Sleeman, M. A., Anderson, I. K., Reddan, J. R., Wormstone, I. M. Tags: Lens Source Type: journals
Cataract surgery helps AMD patients; steroid improves DME; online eye health forumEmail this article to a colleague.
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(American Academy of Ophthalmology) This month's Ophthalmology, the journal of the American Academy of Ophthalmology reports on a national study that finds cataract surgery is likely to benefit patients with age-related macular degeneration (AMD) at all stages of the disease, on a clinical trial showing that the steroid triamcinolone may be effective in advanced diabetic macular edema (DME) patients when standard treatment fails, and on the public's use of two Academy-sponsored online eye health forums. (Source: EurekAlert! - Medicine and Health)
Source: EurekAlert! - Medicine and Health - November 2, 2009 Category: Global & Universal Source Type: news
Oxidative Stress of Intracameral Lidocaine and Levobupivacaine on Ocular Tissues.Email this article to a colleague.
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CONCLUSIONS: The results of this study suggest that levobupivacaine 0.5% is shown to have an immediate toxicity on corneal endothelium. Lidocaine 2% causes oxidative damage on corneal and lens tissues. Surgeons should not prefer repetitive and high doses of intracameral lidocaine and use it in the presence of corneal pathology during cataract surgery.
PMID: 19887439 [PubMed - as supplied by publisher] (Source: The British Journal of Ophthalmology)
Source: The British Journal of Ophthalmology - November 2, 2009 Category: Opthalmology Authors: Demir MN, Demir ZA, Yalçyn Tök O, Yylmaz FM, Yylmaz G, Nurözler AB, Ornek F Tags: Br J Ophthalmol Source Type: journals
Reply: Suture-related complications after cataract surgery: A patient safety issueEmail this article to a colleague.
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The case presented by Hillier et al. had a clinical course similar to those in our series, and it strengthens our suggestion that exposed sutures should be removed during the early postoperative period. In the letter to which Hillier et al refer, Kelly et al. were commenting on the report of a series of endophthalmitis cases resulting from corneal sutures placed after extracapsular cataract extraction. Specifically, they commented that after small-incision cataract surgery, corneal sutures should be removed prior to discharge from ophthalmic care. We fully agree with this recommendation and believe that our cases support...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Brian J. Lee, Scott D. Smith, Bennie H. Jeng Tags: Letters Source Type: journals
Analysis of post-DSEK corneal profile and relationship to hyperopic shiftEmail this article to a colleague.
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We were interested in the article by Holz et al. because in our experience, patients having Descemet stripping endothelial keratoplasty (DSEK) exhibit varying degrees of hyperopic shift; one of our patients showed a +4 diopter shift in the refractive status postoperatively. The authors' explanation for this apparent shift using corneal profiling with anterior segment optical coherence tomography (AS-OCT) is an interesting concept as there seems to be a definite alteration in the posterior profile of the cornea, thus altering the refractive power of the cornea. However, several other factors may contribute to the hyperopic...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Rakesh Jayaswal, Philip Alexander, V. Senthil Maharajan Tags: Letters Source Type: journals
Reply: Analysis of post-DSEK corneal profile and relationship to hyperopic shiftEmail this article to a colleague.
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We thank Jayaswal et al. for continuing to investigate factors that may contribute to hyperopic shift following DSEK. Concerning the 3 variables they proposed as causes of hyperopic shift, we agree with 2 of them: increased central corneal thickness and decreased posterior radial curvature of the cornea. As addressed in our article, an increase in corneal thickness can decrease the radial curvature of the refractive surface, causing a hyperopic shift. According to Yoo et al., the ratio of central to peripheral (C:P) graft thickness also contributes. Grafts were found to form a meniscus shape (C:P ratio (Source: Journal o...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Majid Moshirfar, Marcus C. Neuffer, Carlton R. Fenzl Tags: Letters Source Type: journals
Editorial BoardEmail this article to a colleague.
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(Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Tags: Frontmatter Source Type: journals
Visual Acuity Conversion Chart/MastheadEmail this article to a colleague.
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(Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Tags: Frontmatter Source Type: journals
Table of ContentsEmail this article to a colleague.
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(Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Tags: Frontmatter Source Type: journals
November consultation #2Email this article to a colleague.
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In this interesting case, several factors must be weighed and evaluated. The patient has anisometropia, mild amblyopia, possible incipient presbyopia, and cosmetic concerns. In addition, he is not used to having the left eye fully corrected. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Michiel H.A. Luger Tags: Consultation Section Source Type: journals
November consultation #3Email this article to a colleague.
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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 #4Email this article to a colleague.
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In this case, the first priority is a precise and complete orthotics and strabismus examination with a contact lens that simulate a postoperative condition that would leave a refractive error of −0.25 to −0.50 D. This remaining refractive error would provide a larger depth of field. I would tell the patient that presbyopia is unavoidable. After the examination, there are 2 possibilities; that is, vision is satisfactory with the correction or the patient has strabismus. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Paolo Vinciguerra Tags: Consultation Section Source Type: journals
November consultation #5Email this article to a colleague.
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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
Blue light–filtering intraocular lenses and scotopic sensitivityEmail this article to a colleague.
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Cuthbertson et al. provide an excellent review of blue light–filtering intraocular lenses (IOLs). I seek to clarify the effect of these IOLs on scotopic vision. In 2006, I wrote an article illustrating that scotopic illumination increases with blue light–filtering IOLs. In the section titled “Scotopic Sensitivity,” Cuthbertson et al. summarize my paper along with those by Mainster and Sparrow, Werner, and Pons et al. My paper fixes 2 problems in the Mainster and Sparrow paper. First, their ultraviolet-absorbing IOL transmission curves were measured in saline, while the blue light–filtering IOLs were measured i...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Jim Schwiegerling Tags: Letters Source Type: journals
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We appreciate Dr. Schwiegerling's further discussion of the potential effects of blue light–filtering IOLs on scotopic sensitivity. Our theoretical calculations support the assumption that blue light–filtering IOLs are unlikely to be detrimental to scotopic sensitivity compared with cataract and, at this time, there is no clinical evidence to suggest that scotopic sensitivity is impaired when these IOLs are used. (Source: Journal of Cataract and Refractive Surgery)
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Fiona M. Cuthbertson, Stuart N. Peirson, Katharina Wulff, Russell G. Foster, Susan M. Downes Tags: Letters Source Type: journals
Pupil optics with multifocal intraocular lensesEmail this article to a colleague.
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In their study of the pupil diameter of Japanese individuals as a function of age, Nakamura et al. measured 140 eyes of 70 subjects 19 to 80 years of age using an infrared open-view pupillometer (ie, a device that does not obstruct the eye not being measured) at distance and near fixation under 5 lux and 500 lux ambient illumination. They found the mean pupil diameter as a function of age to be consistently smaller than values reported in the literature, and they speculate that this may be due to their unique subject cohort. There are simpler explanations. First, the low-light pupil diameter measurement was at 5 lux, wher...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Sandra Brown Tags: Letters Source Type: journals
Reply: Pupil optics with multifocal intraocular lensesEmail this article to a colleague.
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As Brown has pointed out, there are other possible explanations of the smaller pupil diameter values we found than those reported in the literature. We appreciate the opportunity to elucidate our study. We chose 5 lux for low-light pupil diameter measurement for several reasons. Before performing this study, we measured the illuminance of a Japanese city at night. Most Japanese roads provide street lamps, and the illuminance under this condition was 5 lux. A previous Japanese report used the same illuminance for scotopic conditions. In addition, under less than 5 lux illumination, patients cannot recognize near targets. We...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Kunihiko Nakamura, Hiroko Bissen-Miyajima, Shinichi Oki, Kazuhiko Onuma Tags: Letters Source Type: journals
Determining corneal hysteresis and preexisting intraocular pressureEmail this article to a colleague.
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The recent publication by Kucumen et al. on the evaluation of corneal biomechanical properties has received attention. The ocular response analyzer (ORA) has become the first choice for in vivo determination of corneal hysteresis (CH). This approach enables critical information to be gained for important issues such as refractive surgery and diagnosis of glaucoma and keratoconus. The authors have made a contribution in a new direction: investigation of the impact of phacoemulsification on corneal properties. They found a decrease in CH in the early postoperative period followed by a slight increase 3 months postoperativel...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Nikolai Sergienko, Irina Shargorodska Tags: Letters Source Type: journals
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We have seen something similar to the outcomes described by Sergienko and Shargorodska in 2 cases with aphakic glaucoma. The first patient was a 75-year-old man with absolute glaucoma in the right eye caused by the pseudoexfoliation syndrome and spontaneous lens dislocation into the vitreous cavity. At presentation, the IOPcc without medication was 49 mm Hg and the CH was 1.4 mm Hg. After medical treatment was initiated, the IOPcc decreased to 27.3 mm Hg and the CH was 6.3 mm Hg. The fellow eye also had pseudoexfoliative glaucoma. With medication, the IOPcc decreased from 30.9 mm Hg to 23.1 mm Hg and the CH increased fro...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Raciha Beril Kucumen Tags: Letters Source Type: journals
Suture-related complications after cataract surgery: A patient safety issueEmail this article to a colleague.
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The recent case series by Lee et al. highlights the potential morbidity that may result from a retained corneal suture placed during routine cataract surgery via a clear corneal incision. We managed a similar case at our institution. Cataract extraction and intraocular lens implantation via a superotemporal corneal incision had been performed in the right eye of a 67-year-old man 18 months previously at another hospital. The clinical appearance was suggestive of small-incision cataract surgery. On presentation to us, a retained 10-0 nylon corneal suture was found at 10 o'clock, associated with a 1.5 mm stromal abscess and...
Source: Journal of Cataract and Refractive Surgery - October 31, 2009 Category: Opthalmology Authors: Roxane J. Hillier, Rajitha R. Ajit, Simon P. Kelly Tags: Letters Source Type: journals
