1. Moorfields Eye Hospital, NHS Foundation Trust, London, UK
2. Biomedical Research Centre, UCL Institute of Ophthalmology, London, UK
3. National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore
4. Royal Devon and Exeter NHS Trust, Barrack Road, Exeter, UK
5. Tennent Institute of Ophthalmology, NHS Greater Glasgow and Clyde, UK
6. St. George’s, University of London & Kingston University, London, UK