Scientists are a step closer to creating a bionic eye which could help millions of blind people to see using a microchip implanted in the retina and a pair of glasses.
The Phoenix99 bionic vision system consists of a camera, attached to glasses, which transmits high-frequency signals to a microchip implanted in the retina. Electrodes on the chip convert these signals into electrical impulses to stimulate cells in the retina that connect to the optic nerve. These impulses are then passed along the optic nerve and are interpreted as an image in the brain.