News

Portland, OR—The novel formulation of timolol maleate 0.5% ophthalmic solution containing potassium sorbate (Istalol, ISTA Pharmaceuticals) is a good option to consider for adjunctive therapy in patients whose IOP is not adequately controlled by a prostaglandin analogue alone, said John R. Samples, MD.

Chicago—The GDx-variable corneal compensator (VCC, Carl Zeiss Meditec), a commercial device that is currently in its fifth generation, may help with early diagnosis of glaucoma by identifying a thinning retinal nerve fiber layer, according to David S. Greenfield, MD, who described the basics of the technology at the American Academy of Ophthalmology annual meeting.

An advantage of spectral-domain OCT compared with conventional OCT technology is that the former has a more than 150-fold better light sensitivity, allowing higher resolution up to 2 to 3 ?m.

San Francisco—Both IOP and the rate of aqueous flow exhibit a circadian rhythm, and that is likely to have significant implications for the evaluation and treatment of patients with ocular hypertension and glaucoma, said Robert N. Weinreb, MD, at Glaucoma 2005.

Chicago—Releasable compression sutures can circumvent the limitations of transconjunctival suture lysis and offer several advantages in controlling aqueous flow after trabeculectomy, according to Murray A. Johnstone, MD, a consultant in glaucoma at Swedish Medical Center, Seattle.

Plymouth, England—Latanoprost (Xalatan, Pfizer Ophthalmics), a potent topical ocular antihypertensive agent, does not seem to cause changes in the central corneal thickness after 2 months of follow-up. This result contradicts previous studies that reported a statistically significant decrease in the central corneal thickness, according to George D. Pappas, MD.

Chicago—Glaucoma patients whose condition is nonresponsive to traditional therapies may have another treatment option, the gold microshunt (GMS) from SOLX. Outcomes of a study of the novel implant placed in the supraciliary space, which were conducted at sites in Israel and Spain, showed that 61% of patients had achieved IOP reduction of 30% or more by 6 months, with a mean reduction of 34% at 18 months after implantation.

New York—Endoscopic cyclophotocoagulation (ECP) performed in patients with medically controlled glaucoma who are undergoing phacoemulsification is extremely safe and associated with long-term reduction in the need for glaucoma medications, said Stanley J. Berke, MD.

Chicago—Douglas H. Johnson, MD, discussed several aspects of his research into aqueous outflow that could lead to a better understanding of the cause of glaucoma and ultimately contribute to a cure. He delivered the American Glaucoma Society lecture at the American Academy of Ophthalmology's glaucoma subspecialty day program.

Chicago—While epidemiologic studies indicate that only one-third of glaucoma damage is attributable to an excessive IOP over the normal distribution, the good news is that, nevertheless, much of the remainder is also pressure-dependent and, therefore, preventable.

Chicago—The Heidelberg Retina Tomograph II (HRT II, Heidelberg Engineering GmbH), the most widely available generation of this technology, creates a two-dimensional picture of a three-dimensional structure, such as the optic nerve, by acquiring images in a manner similar to that of computed tomography. Jeffrey D. Henderer, MD, explained the basics of this technology and its relevance to glaucoma at the American Academy of Ophthalmology annual meeting.

Chicago—Similar IOP-lowering outcomes were attained in eyes that underwent trabeculectomy or received the Ex-PRESS miniature glaucoma shunt (Optonol) placed under a partial-thickness scleral flap. Hypotony was less frequent in eyes that received the implant, according to the results of a comparison study.

Chicago—Results of a study including more than 1,000 eyes followed for up to 3 years show that selective laser trabeculoplasty (SLT) performed with the Q-switched frequency-doubled 532-nm Nd:YAG laser (Selecta II, Lumenis) is a safe and effective option for lowering and maintaining IOP across a spectrum of glaucoma patients, reported Lawrence F. Jindra, MD, at the annual meeting of the American Academy of Ophthalmology.

Hunenberg, Switzerland—The Australian Therapeutics Goods Administration has approved Alcon Inc.'s anecortave acetate suspension 15 mg (RETAANE) for the treatment of subfoveal choroidal neovascularization caused by exudative age-related macular degeneration (wet AMD) where there is a classic component.

The burden of diabetes in 2002 was 132 billion. The prevalence of diabetes in all age groups may be increasing, reflecting the surging rates of obesity. In terms of vision impairment, diabetes is the leading cause of blindness in the working population that is preventable with timely application of photocoagulation.

Chicago—Clinicians should use a systematic approach when confronted with the complaint of double vision. Knowing the possible symptoms and signs associated with diplopia can help with the diagnosis, explained Kimberly Cockerham, MD, FACS, at the neuro-ophthalmology subspecialty day meeting during the American Academy of Ophthalmology annual meeting.

With Medicare payments to physicians projected to decrease, treating patients will pose more challenges to ophthalmologists who are already experiencing decreased payments.

Chicago—The patterns of childhood blindness and visual impairment have been changing throughout the world over time. As socioeconomic status improves in many developing countries the major causes are changing, according to Clare Gilbert, MD, MSc, FRCOphth.

Chicago—Observations of patients in the Age-Related Eye Disease Study (AREDS) after they had cataract surgery did not seem to show an accelerated progression to neovascular age-related macular degeneration (AMD) compared with patients matched for severity of AMD who did not have cataract surgery, reported Frederick L. Ferris III, MD, during retina subspecialty day at the American Academy of Ophthalmology annual meeting.

Finding his voice

In conjunction with the American Academy of Ophthalmology (AAO) meeting in Chicago last October, there was a musical performance tobenefit Research to Prevent Blindness (RPB). The show was titled "Doc Henry's Second Career" and was the first official "gig" of Henry I. Meisels, MD.

Chicago—The patterns of childhood blindness and visual impairment have been changing throughout the world over time. As socioeconomic status improves in many developing countries the major causes are changing, according to Clare Gilbert, MD, MSc, FRCOphth.