Technology

Dorsey said the decision to step down was his own and that he is "really sad...yet really happy".

After the procedure at Moorfields Eye Hospital, Steve Verze, an engineer in his 40s, told ITV News of how his new eye has given him a restored self-confidence.

A patient at a London hospital will become a part of history on Thursday when he is given the world's first 3D printed prosthetic eye.