Sameer Trikha, Samantha de Silva, Hemal Mehta and Simon Keightley respectively Specialty Registrar Ophthalmology, Southampton General Hospital; Specialty Registrar Ophthalmology, John Radcliffe Hospital, Oxford; Specialty Registrar Ophthalmology, Moorfields Eye Hospital, London; Consultant Ophthalmic Surgeon, North Hampshire Hospital, Basingstoke