Keith Barton is a Consultant Ophthalmologist at Moorfields Eye Hospital, and is an Honorary Reader for the Department of Epidemiology at the Institute of Ophtalmology, University College London. Additionally, Dr Barton is the Chairman of the International Glaucoma Association, a registered charity for people with glaucoma. Keith Barton is a Glaucoma Specialist whose research interests include the surgical management of ... Read moreglaucoma, specifically secondary glaucoma and the use of aqueous shunt devices, and the management of cataract in glaucoma. Roger Hitchings is an Honorary Consultant Ophthalmologist at Moorfields Eye Hospital, London and Professor Emeritus in Glaucoma and Allied studies at the University of London. He was Director of Research and Development at Moorfields Eye Hospital. He has authored and edited 4 books, 15 book chapters, and over 200 peer-reviewed papers on glaucoma. He developed the glaucoma department at Moorfields Eye Hospital into the largest in the UK and one of the largest in the world. He is a past president of the EGS, and founding Member of the World Glaucoma Association (AIGS). As Director of Research and Development, he had responsibility for establishing the Clinical Trials Unit and the associated Reading Centre. Donald Budenz, MD, MPH is the Kittner Distinguished Professor and Chair of the Department of Ophthalmology, University of North Carolina in Chapel Hill. He has authored over 130 peer reviewed scientific articles, numerous book chapters, and a single-authored textbook entitled Atlas of Visual Fields. Show Less