Replacing Vision
In science fiction, replacing a character's eyes or vision completely is decribed as either "bionic" or "cyborg." Retinal implants appear for the first time in science fiction in the 1952 novel "The Space Merchants," by Frederik Pohl and Cyril Kornbluth. The first real implant into the visual cortex was accomplished in 1978 by William Dobelle. Today, several groups are working to create retinal implants, like those pictured, to provide vision to the blind.The Six Million Dollar Man
"The Six Million Dollar Man" was a television series based on the 1972 Martin Caidn novel, "Cyborg." The main character, Steve Austin, is given "bionic implants" to repair his legs, arms and left eye after a near fatal accident. In the television series, the enhanced eye could see infrared lights and provide telescopic vision.
Photovoltaic Retinal Prostheses

These small black dots are actually the next wave in vision science. They are subretinal photovoltaic implants developed by the Hansen Experimental Physics Laboratory at Stanford University. Implants like these are being investigated to help stimulate the retina in persons with diseases that degenerate vision.