Peter G Watson MA MB BChir FRCS FRCOphth DOHon Consultant Ophthalmic Surgeon, Addenbrooke’s Hospital, Cambridge, Moorfields Eye Hospital, LondonBrian L Hazleman MA FRCPHon Consultant Rheumatologist, Addenbrooke’s Hospital, CambridgePeter M McCluskey MBBS MD FRANZCO FRACSDirector, Save Sight Institute, and Professor of Ophthalmology, University of Sydney, AustraliaCarlos E Pavésio MD FRCOphthConsultant Ophthalmologist, Moorfields Eye Hospital, London