1. From the Singapore National Eye Centre, Singapore; the2Singapore Eye Research Institute and the
2. Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, VC, Australia; the
3. Epidemiology and Disease Control Division, Ministry of Health, Singapore; and the
4. Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, VC, Australia; the5Centre for Vision Research, University of Sydney, Sydney, NSW, Australia.
5. Centre for Vision Research, University of Sydney, Sydney, NSW, Australia.
6. From the Singapore National Eye Centre, Singapore; the2Singapore Eye Research Institute and the6Department of Community, Occupational and Family Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; the
7. From the Singapore National Eye Centre, Singapore; the2Singapore Eye Research Institute and the3Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, University of Melbourne, Melbourne, VC, Australia; the