Thanks to a landmark eye operation by A/Prof Leonard Ang, the first of its kind in Singapore and South East Asia, Mrs Lee is able to see again. Mrs Lee was blinded when she was stricken with Stevens Johnson syndrome. She had previously undergone 7 eye operations in Taiwan, but all these surgeries failed. A/Prof Leonard Ang performed a complex eye operation which involved reconstruction of the entire eye surface and the replacement of a diseased cornea with an artificial cornea (Boston Keratoprosthesis) transplant. This helped to restore Mrs Lee vision after years of being blind.