A blind man has been helped to see using "artificial intelligence glasses". The Orcam glasses have a tiny smart camera that can recognise text and even people's faces. The glasses then speak to the person wearing them through a pair of headphones and explain exactly what they are looking at. Mark Bilton was born deaf and at the age of 19 he was diagnosed with retinitis pigmentosa, an inherited eye condition which affects the retina at the back of the eye. From then his sight then deteriorated and back in 2002 he was registered blind.

When Sarah Matthews was left completely blind three years ago after suffering a head injury in an accident, she feared she would never lead a normal life again. The mum of one was struggling to do basic tasks, such as getting things out of a cupboard. But even more agonising was the fact that she could no longer recognise her family and friends. The injury damaged the optic nerve in both eyes, leaving her unable to know when her five-year-old son Evan was coming over for a hug. But thanks to advances in science, artificial intelligence has transformed her life.