1. From the Singapore Eye Research Institute, Singapore; the 2Centre for Eye Research Australia, University of Melbourne, Melbourne, Australia;
2. the Yong Loo Lin School of Medicine and
3. the Glaucoma Research Unit, Moorfields Eye Hospital, London, United Kingdom;
4. the Duke-NUS Graduate Medical School, Singapore;
5. the Department of Ophthalmology, Tan Tock Seng Hospital, Singapore;
6. the Community Occupational and Family Medicine, National University of Singapore, Singapore;
7. the Duke-NUS Graduate Medical School, Singapore; the 8Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina;
8. the Department of Ophthalmology, University of Sydney, Sydney, Australia; and
9. the Doheny Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, California.