Among the developments reviewed tonight are a computer chip that could soon enable blind people to regain their sight. Presented by Peter Snow and Philippa Forrester, with Anya Sitaram , Jez Nelson and Lindsey Fallow.
Producer Suzanne Levy ; Editor Saul Nasse (S) (W) 15 Repeated tomorrow at 12.45am; FOR INFORMATION: call [number removed]; Ceefax: page 623; Website: www.bbc.co.uk/tw