Retinitis pigmentosa (RP) is a group of inherited disorders characterized by progressive peripheral vision loss and night vision difficulties (nyctalopia) that can lead to central vision loss. The US Food and Drug Administration (FDA) has approved the first retinal implant, the Argus II Retinal Prosthesis System, for adults aged 25 years or older with advanced RP. The implant includes a small video camera, transmitter mounted on a pair of eyeglasses, video processing unit (VPU), and an implanted retinal prosthesis (artificial retina). The VPU transforms images from the video camera into electronic data that are wirelessly transmitted to the retinal prosthesis.
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