An Australian group have restored some minimal sight to a patient through an implanted bionic eye.
The implant is connected to an external head mounted camera which sends impulses to electrodes planted underneath the retina. The patient was able to see light and dark and some shapes where she had previously seen nothing for many years.
There are currently over 10 different bionic eye projects around the world at various stages but no one to date has got much further than providing very rudimentary vision. One of the most advanced is the Argus II model in America.