Facts About Retinitis Pigmentosa
An artificial vision device called the Argus II has also shown promise for restoring some vision to people with late-stage RP. The Argus II, developed by Second Sight with NEI support, is a prosthetic device that functions in place of lost photoreceptor cells. It consists of a light-sensitive electrode that is surgically implanted on the retina. A pair of glasses with a camera wirelessly transmits signals to the electrode that are then relayed to the brain. Although it does not restore normal vision, in clinical studies, the Argus II enabled people with RP to read large letters and navigate environments without the use of a cane or guide dog. In 2012, the U.S. Food and Drug Administration (FDA) granted a humanitarian device exemption for use of the Argus II to treat late-stage RP. This means the device has not proven effective, but the FDA has determined that its probable benefits outweigh its risks to health. The Argus II is eligible for Medicare payment.
