Camera in the eye could help the blind to see again
Enabling the blind to see - a task once thought the province of miracles - is the goal of an ambitious Â£6 million programme launched by the United States government.
A team of scientists is working on a device, consisting of a tiny camera and radio transmitter lodged in the frame of a patient's spectacles to transmit information and power to modules placed within the eyeball.
The modules will be linked to retinal nerves that will send electrical impulses to the brain for processing.
Diseases such as age-related macular degeneration and retinitis pigmentosa damage the rods and cones in the eye that normally convert light to electrical impulses, but leave intact the nerve pathways to the brain.