While still relatively young, the brilliant cartoonist and illustrator George du Maurier went blind in one eye, probably as the result of a detached retina. This didn’t prevent him from joining the staff of Punch and doing wonderful work for it until his death in 1896. His best-known cartoon shows a chinless young curate taking the top off a boiled egg at breakfast with his bishop, and their exchange has entered the language: ‘I’m afraid you’ve got a bad egg, Mr Jones.’ ‘Oh no, my Lord, I assure you that parts of it are excellent!’