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The new device was implanted in the eyes of visually impaired rats. Exposing the prostheses to light elicited a response in the part of the rats' brains involved in visual processing, researchers reported online today (June 18) in the journal Nature Communications. The device offers promise for restoring vision in degenerative diseases of the eye.
Inside the retina — the light-sensitive inner layer of the back of the eye — cells called photoreceptors convert light into neural signals, much as a camera sensor converts light into digital signals.
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