Retina UK formed in 1976 as a voluntary organisation and is now helping to fund and develop treatments for genetic eye conditions. But for the first time in its history, it is conducting a wide-ranging piece of research into the lives of people who have genetic sight loss. Chief Executive Tina Houllaghan explains why. Tom Walker meets a keen blind archer from west Wales, who says the sport helped him out of his depression. And the Milton Mountaineers celebrate 50 years of gaining summits with a climb up Mount Snowdon. Presenter: Peter White Producer: Lee Kumutat