News

Baltimore-Intravitreal injection of a small interfering RNAmolecule (Sirna-027, Sirna Therapeutics Inc.) appears to be safeand well tolerated by patients for treatment of choroidalneovascularization (CNV) secondary to age-related maculardegeneration (AMD), according to Edward J. Quinlan, MD, whoreported the preliminary data from the phase I clinical trial.

Dorado, Puerto Rico-Cataract surgeons should learn how toperform limbal peripheral arcuate astigmatic relaxing incisions(LRIs), a good approach for correcting pre-existing astigmatism inpatients undergoing cataract surgery or refractive lens exchange(RLE) at the time of surgery, according to Louis D. "Skip"Nichamin, MD.

I recently passed a residency milestone: my 100th cataract surgery.It turned out to be a tough case with a very dense cataract and theneed for iris hooks. But it went well, and it felt good.

Exton, PA-Othera Pharmaceuticals Inc. has announced theinitiation of a phase II clinical trial by the National EyeInstitute (NEI) of Othera's topical eye drop OT-551 in patientswith geographic atrophy (GA). The NEI will investigate OT-551'spotential to slow enlargement of the atrophic area in the maculaand prevent progression to the vision-threatening advanced stagesof age-related macular degeneration (AMD).

Rochester, NY-The FDA has approved Bausch & Lomb's 100 Hzexcimer laser, the 217z100, for use as part of the Zyoptixpersonalized laser vision-correction system for refractive surgery.

Washington, DC-The FDA and Ligand Pharmaceuticals Inc. arewarning of the risk for visual loss associated with the use ofdenileukin diftitox injection (Ontak), a drug used in patients withpersistent or recurrent cutaneous T-cell lymphoma whose malignantcells express the CD25 component of the interleukin-2 receptor.

Irvine, CA-The Committee for Medicinal Products for Human Use(CHMP) has recommended that the European Commission approveGanfort, Allergan's bimatoprost (Lumigan)/timolol ophthalmicsolution combination product for glaucoma. The CHMP opinion servesas the basis for a European Commission approval, which is expectedto be finalized in the second quarter of 2006.

Atlanta-Alimera Sciences Inc. and pSivida Limited haveannounced that following a planned interim review, an independentData Safety Monitoring Board (DSMB) has recommended thecontinuation of their phase III clinical trial of Medidur.

Palo Alto, CA-A prospective comparison study of the IntraLasefemtosecond laser (IntraLase Corp.) and the Hansatome keratome(Bausch & Lomb) in myopic LASIK with VISX CustomVue (AdvancedMedical Optics) showed that both devices produced excellent visualoutcomes. The eyes treated with the femtosecond laser showed moreimprovement in several outcome measures at early intervals in thestudy, but most of these differences had disappeared by 6 months,said Edward E. Manche, MD.

S?o Paulo, Brazil-A target IOP should be set for each patientas soon as the diagnosis of ocular hypertension or glaucoma ismade, and it should be continually re-evaluated to assess whetherexisting treatment is achieving its goal for stopping visual fieldprogression and protecting the optic nerve, said Curt Hartleben,MD, at the World Congress of Ophthalmology.

The late Charles L. Schepens, MD, was well-known byophthalmologists worldwide as the father of modern retinal surgeryafter having discovered a way to re-attach retinas and restorevision to nearly 90% of patients, and having invented the binocularindirect ophthalmoscope.

Dorado, Puerto Rico-Physicians delving into the refractivecataract surgery arena should be careful screening and selectingpatients to ensure the best results. In order to do this, surgeonsneed to survey patients about their needs and desires pertaining totheir vision, so that the appropriate IOL technology can be chosen,explained Louis D. "Skip" Nichamin, MD, who spoke during theCurrent Concepts in Ophthalmology meeting here.

A March survey showed that 62% of menopausal and perimenopausal women reported dry eye symptoms, yet 16% of women experiencing dry eye symptoms realized dry eye was a symptom of menopause. Of the women experiencing dry eye symptoms, less than 59% spoke to a doctor about it and about 58% used over-the-counter eye drops to treat the symptoms.

WaveFront Sciences presents the COAS-HD Model 2800 high-definitionprecision aberrometer. The Model 2800 (2800 is the number ofsamples in a 9.5-mm pupil) extends the capability ofwavefront-based ophthalmic metrology and provides the physicianwith an ultra-detailed map of the eye.

Spatial frequency doubling (FD) stimuli have an excellent abilityto predict progression of visual field loss and optic discabnormalities in patients with glaucoma for about 3 years, but thepredictive power drops off over time, said Ted Maddess, PhD, seniorfellow (associate professor) in the visual sciences group, ResearchSchool of Biological Sciences, Australian National University,Canberra.

An assessment of the cumulative incidence of changes in visualacuity for a 15-year period showed that, overall, 8% ofparticipants in the Beaver Dam Eye Study of age-related eyeconditions developed visual impairment, 1% developed severeimpairment, and 7% developed doubling of the visual angle.

The study of proteomics could identify candidate proteins thatmight be targets for pharmaceutical therapies for age-relatedmacular degeneration (AMD), said Deborah A. Ferrington, PhD,assistant professor in the departments of ophthalmology andbiochemistry, molecular biology and biophysics at the University ofMinnesota, Minneapolis.

Early experience with peptidomic profiling of plasma forage-related macular degeneration (AMD) biomarkers is encouraging insuggesting this technique may some day have a role in theidentification of individuals susceptible to developing thisvision-threatening disorder, said John W. Crabb, PhD.

Contrary to early expectations, researchers have discovered anamazing amount of heterogeneity for inherited retinal diseases,including genetic, allelic, phenotypic, and clinical heterogeneity.This complexity means that it is possible to identify the cause ofone particular, common retinal disease?autosomal dominant retinitispigmentosa (ADRP)?in only about half of the patients.

The dog model is an appropriate choice for developing and testingnovel therapies applicable to human patients because theapproximately 300 dog breeds are genetically isolated populations.Furthermore, it is believed their phenotype is similar to that ofhumans, according to Gustavo Aguirre, VMD, PhD, professor ofophthalmology and medical genetics, School of Veterinary Medicine,University of Pennsylvania, Philadelphia.