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Submission + - photovoltaic powered retinal prosthetic (technologyreview.com)

slew writes: Although it hasn't been tested on humans yet, stanford researchers have created a new type of retinal prosthetic that is photovoltaic powered. The gist is that external googles convert an image into infrared light and that light conveys both the image and the power for the retinal implant which means no batteries, or bulky induction coils are required for the retinal implant. This should allow for higher resolution implant (the experimental device has 176 pixels where in contrast the currently available retinal implant from SecondSight is about 60 pixels and requires a bulky inductive antenna). Might be a while till we get to a bionic eye, but this should be quite a help for the sight challenged among us.

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