News

Fort Lauderdale, FL-Studies evaluating age-related changes in the diffusional status of macromolecular transport processes across Bruch's membrane may provide new insight into the pathophysiology of age-related macular degeneration (AMD) and suggest new targets for intervention, said Ali A. Hussain, PhD, at the annual meeting of the Association for Research in Vision and Ophthalmology.

Fort Lauderdale, FL-The investigational drug tin ethyl etiopurpurin (SnET2) produced a visual acuity benefit and slowed the development of neovascular lesions in two phase III trials of SnET2 photodynamic therapy (PDT) (Miravant Medical Technologies) for the treatment of subfoveal choroidal neovascularization associated with wet age-related macular degeneration, said Edgar L. Thomas, MD, Retina-Vitreous Associates, Los Angeles.

Fort Lauderdale, FL-Prior pseudophakia appears to be a risk factor for trabeculectomy failure in eyes with uveitic glaucoma, said K. Sheng Lim, MD, at the annual meeting of the Association for Research in Vision and Ophthalmology.

Fort Lauderdale, FL-Experience with implantation of the Ex-PRESS miniature glaucoma device (Optonol Ltd.) under a scleral flap in high-risk eyes shows that it is a simple and effective technique for controlling IOP and reduces complications encountered with subconjunctival implantation, said Trevor R. Carmichael, MD, PhD, at the annual meeting of the Association for Research in Vision and Ophthalmology.

Fort Lauderdale, FL-Results of the OPTIME Study show that cardiovascular risk factors are significantly more prevalent among patients with primary open-angle glaucoma (POAG) compared with unaffected controls, reported Nicola Orzalesi, MD, PhD, at the annual meeting of the Association for Research in Vision and Ophthalmology.

New York-Results of an in vitro susceptibility study suggest a combination regimen consisting of clarithromycin and a fourth-generation fluoroquinolone may offer the best topical treatment for keratitis due to non-tuberculous Mycobacteria, said Mahendra K. Shah, MS.

A new artificial cornea may offer hope to patients who have a history of multiple human donor cornea rejections. AlphaCor, manufactured by Australian-based Argus Biomedical Pty Ltd. and marketed by CooperVision Surgical Inc., is a biocompatible, flexible, one-piece artificial cornea that has been designed to replace a scarred or diseased native cornea in patients for whom corneal graft using human donor tissue is unsuitable.

Rishon Le-Zion, Israel-LASEK performed by using hypertonic saline (5% NaCl) to lift the flap may be a better alternative to alcohol-assisted LASEK, according to a recent randomized prospective study. Israeli researchers presented clinical trial results of the new method.

Fort Lauderdale, FL-In a comparison study that has implications for wound healing in surface ablation procedures, investigators found that four commonly used topical ophthalmic antibiotics-moxifloxacin (Vigamox, Alcon), levofloxacin (Quixin, Santen), gatifloxacin (Zymar, Allergan), and ofloxacin (Ocuflox, Allergan)-all showed evidence of toxicity on human corneal epithelial cells, with moxifloxacin causing the least amount of toxicity.

Salt Lake City-A $100,000 grant to the University of Utah's John A. Moran Eye Center will support continued research into retinal cell transplantation in the treatment of retinitis pigmentosa (RP).

New York-Columbia University Medical Center is hoping its new Louis V. Gerstner Jr. Clinical Research Center in Vision will help to develop solutions to the world's most pressing vision problems.

Fort Worth, TX-Alcon Inc. has filed the second of three parts of its "rolling" new drug application for anecortave acetate for depot suspension (Retaane) 15 mg, an investigational treatment for patients with wet age-related macular degeneration (AMD).

Irvine, CA-IntraLase Corp. sold 30 lasers during its second quarter ended June 30, bringing the total number of its lasers to 153 units globally.

San Diego-U.S. Naval aviators can benefit from PRK in terms of restoration of visual acuity to 20/20 and enhanced flight performance, said David J. Tanzer, MD, surgical director, refractive surgery center, department of ophthalmology, Naval Medical Center, San Diego.

Fort Lauderdale, FL-More aggressive glaucoma screening methods and a better understanding of disease progression as well as its incidence and prevalence among various population groups are essential to lessening the devastating impact of this disease worldwide, said Harry A. Quigley, MD, during the 2004 Friedenwald Award lecture at the Association for Research in Vision and Ophthalmology (ARVO) annual meeting.

San Diego-The M2 single-use microkeratome with a 130-?m head (Moria, Antony, France) appears to produce predictable flap thickness without causing any significant complications during or after LASIK, according to Richard A. Norden, MD, FACS, who spoke during the annual meeting of the American Society of Cataract and Refractive Surgery (ASCRS).

San Diego-"The pursuit of perfect vision is analogous to the pursuit for the Holy Grail. The Holy Grail is the symbol for a large and mysterious power, closely guarded, concealed, and protected. Like the Holy Grail, perfect vision is the ultimate prize, but it is elusive," Roger F. Steinert, MD, said when he delivered the Binkhorst Lecture, "The Pursuit of 'Perfect' Vision: Ophthalmology's Holy Grail?" at the American Society of Cataract and Refractive Surgery annual meeting.

San Diego-A safety and reliability study of the redesigned BD Beaver microkeratome blade (Becton, Dickinson and Co.) in LASIK indicates that the blade results in uniformly consistent flap thickness and is unlikely to cause any intraoperative complications, said Paul J. Dougherty, MD, who presented his findings at the annual meeting of the American Society of Cataract and Refractive Surgery.

San Diego-The shape of the cornea, prolate or oblate, does not seem to affect the visual acuity or the quality of visual outcomes following wavefront-guided refractive surgery. The spherical aberration seems to be the most important element, based on the results of the VISX mul- ticenter FDA trial.

San Diego-The Carriazo-Pendular Microkeratome (Schwind Eye-Tech-Solutions, Kleinostheim, Germany) uses a thin head to cut thin, predictable flaps, which can widen the range of patients who are candidates for LASIK.

San Diego-Patients with the zonal progressive multifocal IOL (Array, AMO) report implanted improved depth of field at all levels of vision, which translates into enhanced quality of life, according to Guy E. Knolle Jr., MD, who spoke at the American Society of Cataract and Refractive Surgery annual meeting.

Vancouver, British Columbia-An $855 million deal will unite verteporfin (Visudyne) developer QLT Inc. and Atrix Laboratories Inc. to build QLT's business and accelerate strategic initiatives.

San Diego-Lens-based surgery with an accommodating IOL (Crystalens, eyeonics) offers advantages for treatment of aging patients with hyperopic presbyopia that make it likely to replace laser keratorefractive procedures as the procedure of choice for the management of that patient population, ex- plained D. Michael Colvard, MD, at the annual meeting of the American Society of Cataract and Refractive Surgery.