1. From the Division of Epidemiology and Genetics, University College London Institute of Ophthalmology, London, United Kingdom; 2Moorfields Eye Hospital, London, United Kingdom;
2. University of Leicester, Leicester, United Kingdom;
3. Singapore National Eye Centre, Singapore;
4. Moorfields Eye Hospital, London, United Kingdom;
5. National University Hospital, Singapore; and
6. From the Division of Epidemiology and Genetics, University College London Institute of Ophthalmology, London, United Kingdom; 2Moorfields Eye Hospital, London, United Kingdom; 6NIHR Biomedical Research Centre for Ophthalmology, Moorfields Eye Hospital, Lo