The patients in Dallas had all been promised clear eyesight from the medication, designed to be a permanent alternative for eye drops. But now, most of them are blind in at least one eye. Curtis Cosby, a lorry driver, (right) wanted to do something that could banish his blurry vision, without having to keep stopping the van to take eye drops. Now he says he can't work. Dr Jeffrey Whitman (top left), president and chief surgeon at Key-Whitman, insists he is just as angry about the liquid as patients. But Cosby's lawyer says Dr Whitman should have had a vetting process in place.