A/Prof Keith Ong is a general ophthalmologist with an interest in cataract and glaucoma surgery. He is in private practice in Sydney with consultation rooms in Eastwood, and attached to Chatswood Private Hospital, Sydney Adventist Hospital and Royal North Shore Hospital. He is also a clinical senior lecturer in the Department of Ophthalmology, Northern Clinical School, University of Sydney, and is involved in Registrar and Medical Student teaching at Royal North Shore Hospital. He has written several papers on glaucoma and cataract, and invented the Ong Eye Speculum for glaucoma surgery.