I remember an article in the 1980s about a wearable computer on a man's belt with batteries, and he had some wires to his brain to help him see shapes, but I can no longer find the reference or pics. It's amazing to see the progress if you compare the pics of the large device back then to the things they are doing now. That and the discoveries and inventions in computing, chip manufacture, cognitive science and biolo…
"A bionic eye implant is now allowing a blind man to see the outlines of his wife after 10 years in darkness.
"The implant, called a retinal prosthesis, consists of a small electronic chip that is placed at the back of the eye to send visual signals directly into the optic nerve. This bypasses the damaged cells in the man's retina.
"The bionic eye doesn't have enough electrodes to recreate the details of human faces, but for the first time since he lost his vision, the man can make out the outlines of people and things, and walk without a cane."