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04/07/2005 Entry: "Bionic eye tech doing better than expected."
Bionic eye test doing better than expected. I've been seeing a lot of articles about bionic vision, say, in the past 2 or 3 years. I wonder if this is going to be regarded as a very hot field soon.
Schuchard said: "We found that visual function improves not just in the area of the chip, but in the macular area too. We have no way of explaining this: there is no observable change in the macular area."Patients also reported stretched contrast perception: from being able to see only a kind of greyish blur, one patient could see darker and lighter areas, post operation. Other patients reported restored or improved colour perception. One man said he was able to see blue for the first time in 20 years.
"We don't have good control ways of testing for these things," Schuchard told delegates. "We believe that the implant is not directly helping, but possibly causing a neurotropic effect. We believe it is to do with a recovery of photoreceptors that hadn't completely died off. Researchers are going after the mechanism, so guess what you'll be hearing about very soon."
The volunteers' vision before the implants ranged from bare light perception to being able to read fewer than ten letters on a sight chart at half a meter's distance. After the chip was implanted, the volunteers were re-tested and every single one showed a significant improvement: some patients could read 25 letters on the sight chart, post operation.
See also:
Sony gets a patent on cyberpunk-like technology, but with no idea how to implement it. Talk about IP abuse.
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