Scientists developing prosthetic retinas

Scottish scientists say they are developing a prosthetic retina that might help a million or more sight-impaired people. The technology being developed is similar to that found in digital cameras; a tiny device would be implanted into the eye to stimulate a retina that was no longer working, The Scotsman reported Wednesday. “The device would contain an imaging detector with hundreds of pixels coupled to an array of microscopic stimulating electrodes,” Dr. Keith Mathieson, who is leading the research at Glasgow University, told The Scotsman. “If light forms an image on the detector, then the result will be electrical stimulation of the retina in the shape of this image. The stimulated cells then send the information via the optic nerve to the brain.”

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