A man with an inherited form of blindness has been able to identify letters and a clock face using a pioneering implant, researchers say.
Miikka Terho, 46, from Finland, was fitted with an experimental chip behind his retina in Germany. Success was also reported in other patients.
The chip allows a patient to detect objects with their eyes, unlike a rival approach that uses an external camera. It works by converting light that enters the eye into electrical impulses, which are fed into the optic nerve behind the eye.
Full story from BBC News