Bionic eye 'blindness cure hope'

A 'bionic eye' may hold the key to returning sight to people left blind by a hereditary disease, experts believe.

A team at London's Moorfields Eye Hospital have carried out the treatment on the UK's first patients as part of a clinical study into the therapy.

The artificial eye, connected to a camera on a pair of glasses, has been developed by US firm Second Sight.

It said the technique may be able to restore a basic level of vision, but experts warned it was still early days.