SCIENTISTS are developing a bionic eye that may help to restore sight to people affected by two of the most common forms of blindness. The tiny implant employs technology similar to that of a digital camera. It works by mimicking the action of the retina, the lining at the back of the eye that converts light into signals to the brain. The implant translates light into electrical impulses and stimulates the retina, fooling the brain into thinking the damaged eye works.
