Retinal implant systems can actually help the blind see again, and scientists believe that they may actually be available for human trials within a year or so. The prototype pictured above, created by a team at MIT, works in conjunction with special glasses fitted with a small camera that relays visual data to a chip mounted on the outside surface of the eyeball. The firing of electrodes under the retina could stimulate the optic nerve, allowing the visually impaired to see again. The recent discovery of a man-made, bio-compatible diamond that makes an excellent stimulating electrode may help in advancing this kind of technology.
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