Predictive power of spatial frequency doubling drops over time
May 1st 2006Spatial 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.
Beaver Dam Eye Study shows marked change in impairment with age
May 1st 2006An 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.
Proteomics applied to search for AMD therapies
April 30th 2006The 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.
Positive progress reported in search for AMD biomarkers
April 30th 2006Early 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.
Heterogeneity complicates search for mutations
April 30th 2006Contrary 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.
Dog model relevant to retinal disease study in humans
April 30th 2006The 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.
Keynote speakers aim to expand international collaborations invision research
April 30th 2006In keeping with the theme, "Building International Collaborations,"as the focus of the 2006 Association for Research in Vision andOphthalmology (ARVO) meeting, two keynote speakers are doing theirpart to promote global partnerships in vision research.
The role of anti-VEGF medications in the treatment of AMD
April 29th 2006While early data show that vascular endothelial growth factor(VEGF) may prevent vision loss and even produce gains in patientswith wet age-related macular degeneration (AMD), much remains to belearned about the class of VEGF inhibitors. Only one drug in thisclass, pegaptanib sodium (Macugen, OSI/Eyetech Pharmaceuticals) hasbeen approved, while others are in the clinical trials pipeline.
ARVO meeting promises latest research initiatives, results
April 28th 2006For thousands of ophthalmologists and vision researchers, a springtrip to Fort Lauderdale, FL, is an annual tradition that mixes alittle bit of sunshine with a whole lot of academics. Thattradition continues this year, with the 2006 Association forResearch in Vision and Ophthalmology (ARVO) annual meeting fromSunday, April 30 to Thursday, May 4.
ARVO meeting promises latest research initiatives, results
April 28th 2006For thousands of ophthalmologists and vision researchers, a springtrip to Fort Lauderdale, FL, is an annual tradition that mixes alittle bit of sunshine with a whole lot of academics. Thattradition continues this year, with the 2006 Association forResearch in Vision and Ophthalmology (ARVO) annual meeting fromSunday, April 30 to Thursday, May 4.
More study needed before combination therapies for AMD accepted
April 15th 2006Baltimore?Photodynamic therapy (PDT) has been the mainstay of treatment for choroidal neovascularization (CNV) in patients with age-related macular degeneration (AMD) until recently when combination therapies (PDT and anti-vascular endothelial growth factor [VEGF]) agents started to be explored.
ARVO meeting promises latest research initiatives, results
April 15th 2006Fort Lauderdale, FL?For thousands of ophthalmologists and vision researchers, a spring trip to Fort Lauderdale, FL, is an annual tradition that mixes a little bit of sunshine with a whole lot of academics. That tradition continues this year, with the 2006 Association for Research in Vision and Ophthalmology (ARVO) annual meeting scheduled for Sunday, April 30 to Thursday, May 4.
Scleral implants under investigation for near vision corrrection
April 15th 2006New York?The Scleral Spacing Procedure (SSP) for Presbyopia with PresVIEW Scleral Implants (PSI) (Refocus Group Inc., formerly PresbyCorp) provides significant improvement in near visual acuity (VA) and no change in the uncorrected distance VA, according to Barrie D. Soloway, MD, FACS.
Kirby Puckett dies; baseball great championed glaucoma awareness
April 15th 2006New York?When glaucoma suddenly stole vision from Minnesota Twins' Kirby Puckett's right eye and forced his retirement from Major League Baseball in 1996, it offered those in ophthalmology a remarkable opportunity to increase awareness about the disease.
Dual-laser blepharoplasty offers better eyelid results
April 15th 2006Atlanta?A 6-year study confirms the safety of dual-laser blepharoplasty for aesthetic rejuvenation of the upper and lower eyelids. Describing a series of 320 blepharoplasties, Harley Freiberger, MD, a dermatologic cosmetic surgeon in Los Angeles, reported that no permanent complications were observed, and that lesions healed rapidly and patients were quickly able to return to normal activity.
Squalamine safe, effective when administered with PDT
April 15th 2006Indianapolis?Squalamine lactate (Evizon, Genaera) seems to be safe and effective when administered with photodynamic therapy (PDT) using verteporfin (Visudyne, Novartis Ophthalmics/QLT Inc.) to patients with wet age-related macular degeneration (AMD), according to Thomas A. Ciulla, MD.