Link A man walks out of a restaurant into the night and sees street lights and brightly lit shop windows. He's so thrilled by the spectacle that he stands there for 10 minutes, just looking. The reason for his joy at such a mundane sight is the fact that he is normally totally blind. The man is one of nine patients to have been fitted with an Alpha IMS device, the latest retinal prosthesis that can restore sight to blind people. The image above is an X-ray of one of the patients, showing the implanted chip with wires running to it from the retina, with a dial behind the ear that can be used to adjust brightness. It is powered wirelessly via a battery in the pocket. Such devices work only in patients who have lost their vision through diseases such as retinitis pigmentosa that destroy the light-detecting cells in the eye but leave the vision-processing neurons intact. The devices send signals directly to the brain. The Alpha IMS joins the Argus II - the only other visual prosthesis to have so far undergone clinical trials. The Argus II was approved by the US Food and Drug Administration only last week and has also been adapted to allow blind people to read Braille by sight rather than touch. But the two devices work very differently. The Argus II converts video from a camera on a pair of glasses into electronic signals "displayed" on a grid of 60 electrodes implanted over a person's retina. The Alpha IMS, on the other hand, detects light entering the eye instead of using an external camera, which means that a patient can look around by moving their eyes rather than always having to move their head. It uses a grid of 1500 electrodes implanted underneath, rather than over, the retina: this offers higher resolution. It also makes use of the natural processing power of the neurons in the middle layer of the retina that process motion and contrast. Link While this link is Daily Mail it has a bit more information than the other article. I looked through the Thread titles and did a search, but I didn't see this so if it's a double sorry.
RP sounds like a condition similar to macular degeneration. So I could conceivably end up using one of these devices one day.
That's impressive the amount of sight it can give back. And this is only the start, in a few years a person could conceivably see almost as well as a non blind person, they would just be missing the color vision. And they could very well see better in the dark as well.
It is fully covered under Medicare? I can never remember the difference between Medicare and Medicade. At least that is what the news said.
The Brits have developed a different procedure to help the blind see. http://www.news.com.au/technology/s...s-for-first-time/story-fn5fsgyc-1226732637015]This one involves implanting a tooth into the eye![/URL]
My exes brother got a PHD working on a project that aims to create a "bionic eye". It's going to be amazing to see how this technology changes lives.
