‘Bionic eye’ lets blind man ‘see’ again
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(CNN) — As a teenager, Roger Pontz’s eyesight began to fail. Doctors told him there was nothing they could do to save his vision and over the years his sight deteriorated until, by the age of 40, he was completely blind.
Pontz had been diagnosed with retinitis pigmentosa, a hereditary eye disease that damages the retina — a layer of tissue at the back of the eye that converts light to nerve signals and sends them to the brain. But he always believed that one day he would see again.
A few years ago he heard about a device called the Argus II. Known as the “bionic eye,” it gave a glimmer of hope that some of his sight might be restored. I just kept waiting and kept waiting and thought someday it would happen. Roger Pontz “At that time it was all experimental,” recalls Pontz, “so I just kept waiting and kept waiting and thought someday it would happen, because you have to believe in yourself.”
The Argus II system consists of a pair of glasses with a small video camera mounted on it, which captures images. A prosthesis no larger than a pencil eraser is surgically implanted on the surface of the retina…
Source: CNN Tech