News

siRNA Turns Off Bad Genes

by Dan Roberts (updated April 2009) A new type of anti-VEGF drug called “small interference RNA (siRNA),” is showing promise in its ability to turn off genes that cause wet AMD. A preliminary primate study in early 2004 showed that, at the highest dose used in the study siRNA (formerly called RNAi) “reduced the incidence [Read More]

Cataract Surgery and Retinal Degeneration

by Dan Roberts Originally published and updated 2/2/09 A cataract causes clouding of the normally transparent lens of the eye. As the lens becomes more opaque, the rays of light are prevented from focusing on the retina, leading to symptoms such as blurriness, light sensitivity, glare, distortion, and fading of colors and vision. Cataracts are [Read More]

Echothiophate (ECHO) Therapy Causes a Stir in the Low Vision Community

by Dan Roberts November 2003 (Updated January 29, 2009) A Connecticut ophthalmologist has been reporting success from a deceptively simple treatment on patients with Stargardt’s disease and other non-neovascular forms of retinal disease. Dr. Gerard Michael Nolan has performed the treatment, called ECHO therapy, for nearly three years on more than 200 patients at the [Read More]

Brain Reorganizes to Adjust for Loss of Vision

Atlanta (November 20, 2008) – A new study from Georgia Tech shows that when patients with macular degeneration focus on using another part of their retina to compensate for their loss of central vision, their brain seems to compensate by reorganizing its neural connections. Age related macular degeneration is the leading cause of vision loss [Read More]