Monday, April 5, 2010

Attempts to Restore Vision

Researchers worldwide are trying to find ways to use electronics to improve visual recognition.
clipped from www.wired.com
bionic-eye-australia
Bionic Vision Australia, has developed a device called the wide-view neurostimulator
Bionic Vision Australia uses an external camera
An electrode array is implanted in the eye and that connects to the central part of the retina where the greatest number of retinal neurons are present
An external unit has vision-processing software to help generate the electrical impulses.
The resultant vision is not the same as the images that a sighted person sees
it’s a pixelated version with a relatively small number of dots: about 100 in early versions
bionic-eye-australia3
team hope to do the first human implant in 2013
groups in Germany and Japan are working on similar projects
clipped from www.wired.com
MIT work on a retinal implant that can bypass damaged cells and directly offer visual input to the brain
retinal-implant3
It won’t entirely restore normal vision, say the researchers, but it will offer just enough sight to help a blind person navigate a room
The eyeball holds a microchip encased in a sealed titanium case
retinal-implant2
clipped from review.ucsc.edu
image
Wentai Liu
clipped from www.wired.com
Frank W. Ockenfels 3
Frank W. Ockenfels 3
The Dobelle artificial vision system
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