“A bionic eye may soon help give some sight back to people who lost their vision due to a degenerative eye disease,” notes a CBS News report. “The Argus II by Second Sight, which was approved by the Food and Drug Administration in February, is set to hit the U.S. market soon. Specifically, the bionic eye can help people who suffer from retinitis pigmentosa, a rare disease that destroys the photoreceptor cells in the eye's retina. The retina is the tissue layer at the back of the inner eye responsible for converting images to nerve signals which are then sent to the brain. When the cells are damaged, the person cannot perceive light and dark. About 1 in every 4,000 people has the disease, according to government estimates.” Read more.