The first artificial retina has been approved by the Food and Drug Administration for use as an implanted device to help people suffering from retinitis pigmentosa, a rare genetic disorder that causes blindness. The Argus II, produced by California-based Second Sight Medical Products, uses special glasses with a video camera and processing unit that transmits signals to a wireless receiver, which is implanted in the eye. Though it does not completely restore vision, researchers say it could help with day-to-day activities.

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