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ISRS/AAO Member Communication [8]

【时间:2011-10-12 17:05】 【作者:admin】【查看次数:3704】
ISRS - Academy Express
A weekly news brief from the American Academy of Ophthalmology (AAO) and the International Society of Refractive Surgery of the American Academy of Ophthalmology (ISRS/AAO)

Editor-in-Chief: David W. Parke II, MD

Chief Medical Editor: Andrew G. Iwach, MD

Managing Editor: Susanne Medeiros
AAO Advisory Panel:
Terry L. Forrest, MD, Jean E. Ramsey, MD
Franco M. Recchia, MD, James C. Tsai, MD
Eliza Hoskins, MD, Sunita Radhakrishnan, MD

ISRS/AAO Advisory Panel:
Matteo Piovella, MD, John A. Vukich, MD

 Contact Us e-mail aeisrsaao@aao.org    
Vol. III, No. 39
October 1, 2009
Twitter: Follow AAO

CONTENTS

New Journal Studies

Academy News


NEW JOURNAL STUDIES

Small study finds it may be unnecessary to delay surgery for childhood esotropia until alignment stabilizes
Researchers prospectively evaluated postop alignment data from children with infantile esotropia (68 subjects) or acquired esotropia (99 subjects) who had surgery after completing 18 weeks of follow-up as part of an observational study. Preoperative misalignment was classified as stable, unstable or uncertain based on measurements taken during follow-up. At six weeks and at six months, there was no difference in postop alignment between patients who had stable or unstable preop alignment. Journal of the American Association of Pediatric Ophthalmology and Strabismus, August 2009

Initial damage to both hemifields may increase risk of glaucoma progression
This retrospective review included 205 patients (205 eyes) with glaucomatous optic neuropathy, and a mean deviation smaller than -6.0 dB. Visual field damage progressed significantly faster in the group with both hemifields affected than the other groups. Higher IOP and thinner central corneal thickness at baseline also significantly increased progression risk. The authors conclude that more aggressive therapy should be considered for eyes with initial damage to both hemifields. Archives of Ophthalmology, September 2009

Opaque superficial corneal epithelial cell area may indicate severity of dry eye syndrome
Researchers prospectively imaged with laser scanning confocal microscopy the epithelium of 31 dysfunctional tear syndrome (DTS) patients and 21 asymptomatic controls. The mean opaque superficial corneal epithelial cell area was significantly greater in patients than controls, and opaque cell area increased with greater clinical severity. Confocal microscopy findings significantly correlated with blurred vision symptoms, BCVA and objective severity parameters. The authors conclude that confocal image analysis may prove useful for classifying DTS severity and monitoring treatment efficacy. American Journal of Ophthalmology, September 2009

SRK II formula not recommended for IOL power calculation in highly myopic patients
This retrospective review included 32 patients (50 eyes) with high myopia who underwent cataract surgery. All preoperative IOL calculations were performed with the IOLMaster. Thirty eyes were implanted with a positive-diopter IOL; 18 eyes with a negative-diopter IOL. Based on the postoperative refractive results, individualized IOL constants were calculated separately for the positive-diopter and negative-diopter ranges. With optimized constants, the SRK/T, Haigis, Hoffer Q and Holladay 1 formulas produced small deviation of postoperative refraction from target refraction. However, they conclude that the SRK II formula cannot be recommended in highly myopic eyes. Journal of Cataract and Refractive Surgery, September 2009

Study indentifies significant baseline differences between glaucoma patients of African and European descent
Researchers describe the design and baseline clinical findings from the African Descent and Glaucoma Evaluation Study, a large, prospective, multicenter observational cohort study of subjects of African and European descent diagnosed with glaucoma or suspected glaucoma and normal controls. Subjects of African descent had thinner corneas across all three groups (P<.001), and a worse pattern standard deviation for standard automated perimetry fields overall (P = .001) and within normal limits (P = .01) compared to those of European descent. No differences were observed for mean IOP (P = .79). Archives of Ophthalmology, September 2009

Retrospective review suggests similar outcomes with bevacizumab and ranibizumab for wet AMD
Researchers retrospectively reviewed medical records from 84 patients (84 eyes) with wet AMD who switched from intravitreal Avastin (bevacizumab) after at least three injections to Lucentis (ranibizumab) when Lucentis became commercially available. Mean treatment duration was around seven months and mean injections per month 0.66 for both drugs. BCVA obtained during treatment was 20/63 for both therapies. Retina, September 2009

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ACADEMY NEWS

Don’t miss these special events during the Joint Meeting in San Francisco
Receptions, symposia, galas, networking, job fair, a cruise. Many special events take place during the Joint Meeting, some hosted by the Academy; others by ophthalmic organizations, groups and exhibiting companies. But they’re all listed online to help you make the most of your time at the Joint Meeting.

Attention YOs: Free session explores latest surgical and therapeutic alternatives from around the world
This Joint Meeting session, Modern Technologies and Techniques for Young Ophthalmologists to Know (SYM82), features young ophthalmologists from the Academy, the European Society of Ophthalmology and the Pan-American Association of Ophthalmology discussing treatment strategies for ocular diseases most commonly applied in Europe, North America and Latin America. This free session is from 9:15 a.m. to 10:45 a.m., Tuesday Oct. 27, at Moscone West, Room 3011.

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The Academy provides the items appearing in the Academy Express as a service. The articles and studies come from news reports and peer-reviewed journals, and are not the product, opinion or position of the Academy unless explicitly stated to be so. The Academy does not endorse products, companies or organizations. The Academy disclaims all liability. If you would like to update your e-mail address or be removed from the mailing list, please send a request to ISRS/AAO.

©2009 American Academy of Ophthalmology. All rights reserved.


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