. >> dean lloyd lost his sight in his 30's. he suffers from a rare disease that damages the retina >> i lost the ability to form images in 1989 and after that i have no vision for 17 years >> that began to change when he enrolled in a clinical trial and doctors implanted an artificial read enough. it uses a tiny video camera in the patient's glasses that convert images to electrical impulses which are sent to electrodes in planted on the back of the damage i. electrodes stimulate visual centers in the brain. dr. eugene develop the device and has a financial interest in the company >> the device is meant to use in patients that i've lost all their vision and trying to restore some of that vision back >> lloyd who once on nothing can now see some shapes and can tell the difference between black and white and gray. the artificial brett has been approved in europe since last year. the company that makes the device estimates that 10,000 people in the country could benefit. lloyd is always trying to find new ways to use it >> in the