'Bionic eye' breakthrough can allow the blind to see
A "bionic" eye that can help the blind to see has restored partial vision to three people who lost their sight because of incurable disease.
The results of the first clinical trial of an artificial retina implanted into the eye showed that it worked well enough to allow the blind to distinguish light from dark and even to see simple objects.
Each patient had an operation to have the implant fitted over their own damaged retinas. They wore spectacles fitted with miniature video cameras, which transmitted signals to the implanted device.
