Is this not amazing?
In the mid-1980s, neuroophthalmologist Joseph Rizzo III was researching retinal transplants to restore blind people’s vision. One day, removing a lab animal’s retina, a tissue-thin membrane that lines the back of the eyeball’s interior, he had an epiphany. ‘The moment I made the cut, I said to myself, ‘What in the hell are you doing?’’ Rizzo recounts. He realized he was cutting nerve connections that are actually spared in many forms of blindness…Rizzo conceived of a retinal prosthesis—an implant that would take a wireless signal from a video camera, bypass the light receptors, and stimulate the healthy nerve cells directly to feed the image to the brain.”.