A NEWS ITEM FROM BBC ON MACULAR DEGENERATION
April 10th, 2009 | No Comments »From BBC News today: Eye ‘compensates for blind spot’ http://news.bbc.co.uk/2/hi/health/7958838.stm
(I would note that the use of “blind spot” seems unfortunate perhaps confusing the term with the normal optic nerve-ending blind spot on the retina – that is always compensated for!)
Quotes from the article”
“Partially sighted and registered blind people can be taught to read and see faces again using the undamaged parts of their eyes, say experts”
“When only the central vision is lost, as with the leading cause of blindness, age-related macular degeneration, peripheral vision remains intact”
Please see my writings about macular degeneration at “On Macular Degeneration….Again….” and earlier at “On Blue Light and Age Related Macular Degeneration (AMD)”http://www.ghuth.com/2006/02/28/on-macular-degeneration%E2%80%A6again%E2%80%A6/.
My explanation for light interaction with the retina defines precisely from geometrical considerations where the three wavelengths of light that constitute visual response interact on the retinal surface. I believe that this exact retinal map of light interaction explains the effects noted in the article, and, if the vision field will ever get beyond the incorrect assumption that “three classes of cone receptors exist” this will lead to more intelligent ideas that will aid the vision of unfortunate AMD sufferers.
GCH
4.10.09
Ojai,CA
