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Phoenix666 writes:

The maker of the world's first commercial artificial retina, which provides partial sight to people with a certain form of blindness, is launching a clinical trial for a brain implant designed to restore vision to more patients.

The company, Second Sight, is testing whether an array of electrodes placed on the surface of the brain can return limited vision to people who have gone partially or completely blind. For decades, scientists have been trying to develop brain implants to give sight back to the blind but have had limited success. If the Second Sight device works, it could help millions of blind patients worldwide, including those who have lost one or both eyes.

The device, called the Orion, is a modified version of the company's current Argus II bionic eye, which involves a pair of glasses outfitted with a camera and an external processor. The U.S. Food and Drug Administration has granted the company a conditional approval for a small study involving five patients at two sites, Baylor College of Medicine and the University of California, Los Angeles. Second Sight still needs to conduct further testing of the device and answer certain questions before starting the trial but hopes to begin enrolling patients in October and do its first implant by the end of the year.

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