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ISRS/AAO Member Communication [7]

【时间:2011-10-12 17:05】 【作者:admin】【查看次数:3331】
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. 38
September 24, 2009
Twitter: Follow AAO

CONTENTS

New Journal Studies

ISRS/AAO News

Academy News


NEW JOURNAL STUDIES

More evidence showing aspheric IOLs provide better image quality  
Researchers used Hartman-Shack aberrometry and an observer-independent testing system to evaluate vision quality in 26 cataract patients implanted with an aspheric IOL (-0.2 µm spherical aberration) in one eye and a spherical IOL in the contralateral eye. All wavefront aberrations were significantly lower in the aspheric IOL group, which led to better retinal image quality. Contrast sensitivity was significantly higher in the aspheric group, and there was a tendency for better high-contrast visual acuity in the aspheric group under mesopic but not under photopic conditions. Patients with larger pupils appeared to benefit most from aspheric IOLs. Ophthalmology, September 2009

Corticosteroids reduce vision loss in patients with CRVO
This multicenter phase III trial included 271 patients with central retinal vein occlusion randomized to treatment with 1-mg or 4-mg doses of preservative-free intravitreal triamcinolone or to observation. Treated patients were five times more likely to gain vision after one year than patients who were under observation. The 1-mg group had fewer side effects related to increased IOP and cataract formation than those in the 4-mg group. Archives of Ophthalmology, September 2009

Bleb revision surgery after trabeculectomy is often successful
This retrospective series included 167 patients (177 eyes) who underwent trabeculectomy revision. Patients were divided into three groups: hypotony without leak, bleb leak or bleb dysesthesia. After a mean follow-up of 2.8 years, the overall success rate was 63 percent, with slightly higher rates for leak repair (65 percent). The success rate for hypotony was 63 percent; and 57 percent for dysesthesia. IOP and visual acuity improved significantly in the hypotony and leak groups. Additional IOP-lowering surgery was required in 9 percent of cases. Multivariate regression analysis found that patients with glaucoma types other than primary open-angle were twice as likely to fail bleb revision. Ophthalmology, September 2009

Besifloxacin appears a good alternative to moxifloxacin for bacterial conjunctivitis
This large, multicenter, double-masked study randomized patients (adults and children at least one year of age) with bacterial conjunctivitis to either besifloxacin 0.6% or moxifloxacin 0.5% dosed three times daily for five days. Efficacy and safety outcomes were similar between the two drugs. Eye irritation occurred more often in moxifloxacin-treated eyes (0.3 percent for besifloxacin vs. 1.4 percent for moxifloxacin; P = 0.0201). Ophthalmology, September 2009

Animal study suggests bevacizumab is equivalent to ranibizumab for wet AMD, raises possibility of systemic effect
Researchers gave intraocular injections of Lucentis (ranibizumab), Avastin (bevacizumab) or vehicle to two types of transgenic mice. Lucentis and Avastin had similar efficacy at suppressing subretinal neovascularization in rho/VEGF mice but the effect lasted longer with Avastin. In Tet/opsin/VEGF mice, in which human VEGF expression levels are very high and the phenotype is severe, Avastin was more effective. In both models, higher doses or repeated injections of Avastin resulted in a systemic effect. Ophthalmology, September 2009

Fluoroqinolones possibly linked to diplopia
This database study included 171 spontaneous reports from the National Registry of Drug-Induced Ocular Side Effects, World Health Organization (WHO) and FDA on fluoroquinolones and diplopia. The relationship between fluoroquinolones and diplopia was deemed “possible,” according to WHO criteria, based on the reported time relationship, multiple positive dechallenge and rechallenge reports and a plausible mechanism of diplopia development: possible extraocular muscle tendinitis. The median time from beginning fluoroquinolone therapy until diplopia onset was 9.6 days. Ophthalmology, September 2009

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ISRS NEWS

Have you registered for the ISRS/AAO 2009 Gala Dinner?
Joint Meeting attendees are invited to the ISRS/AAO 2009 Gala Dinner, an evening of celebration and awards with your colleagues in refractive surgery and ISRS/AAO leaders. This year the Gala Dinner will be held Friday, October 23, in the famous Venetian Room at the Fairmont Hotel San Francisco, where Tony Bennett first sang "I Left My Heart In San Francisco." Purchase tickets for the ISRS/AAO Gala Dinner when you register for the 2009 Joint Meeting and/or Subspecialty Day.

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ACADEMY NEWS

Experts to discuss reducing preventable blindness at the Joint Meeting in San Francisco
The topic for this year’s International Forum is Debates and Updates: Pediatric Cataract, Volunteering, and VISION 2020 – The Next Decade. Community and international efforts, such as VISION 2020, have significantly reduced preventable blindness worldwide, yet more work remains. A panel of analysts puts the problem into perspective.

Follow ISRS/AAO on Twitter
The International Society of Refractive Surgery is now posting news and information on Twitter, the micro-blogging site. Go to the ISRS/AAO profile at http://twitter.com/isrs_aao to “follow.” If you do not have a Twitter account, set one up to start reading “tweets” about cosponsored meetings, Refractive Surgery Subspecialty Day, clinical news and updates, and more. You can also follow the Academy on Twitter.

Online meeting registration ends Sept. 30
After Sept. 30 you can still register onsite in San Francisco, but course and registration fees will increase. If you are currently registered you can still purchase course tickets online until Sept. 30. All meeting registrations and ticket purchases made after Aug. 26 must be picked up at Registration Services located in the Moscone North Lobby.

Looking for a quiet place to wine, dine and unwind at the Joint Meeting?
Relax, avoid noisy crowds and enjoy world-class cuisine at San Francisco restaurants hand-picked by the Academy Seniors Executive Committee. From iconic mainstays to quaint cafes, these restaurants offer charming ambiance, top-notch service and a nice respite from your busy Joint Meeting schedule. Go online to see which restaurants made the list and get information to make your reservations.

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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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