Sheng Lim is a Consultant Ophthalmic Surgeon at St Thomas' Hospital in London. He undertook his general ophthalmology and glaucoma training at Moorfields Eye Hospital and the Western Eye Hospital and had further training in Glaucoma at the Mayo Clinic in the USA. He has a doctorate degree from his research into glaucoma surgery from the University of London and now specialises in glaucoma and cataract surgery.