Six people who were living with blindness had their sight partially restored, thanks to an implant which transmits video images from a camera to the brain. A study, led by a US team of specialists, shows that implanting electrodes in the brain's visual cortex can receive footage from a camera mounted on glasses. Interestingly, the technology bypasses both the eye and the optic nerve altogether.

'It is a real message of hope – I feel within my lifetime we can restore functional sight to the blind,' expert says of successful study.

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"Blind patients have vision partially restored after new brain implant"