Charles Gordon Sinclair was born in Highgate, North London, on 26 January 1906, the second son of Charles Purves Sinclair, general manager of the Colne Valley Water Company. He was educated at Shirley House School, Watford, and at St Paul's School, West London, before entering St Bartholomew's Hospi

Harold Ridley pioneered the use of Perspex lenses in the treatment of cataract. He was born on 10 July 1906 in Kibworth, Leicestershire. His father, Nicholas Charles Ridley FRCS, was a former Naval surgeon who became an ophthalmic surgeon at Leicester Royal Infirmary. His mother, Margaret Parker - h