1. From the Singapore Eye Research Institute, Singapore; the2Singapore National Eye Centre, Singapore; the
2. From the Singapore Eye Research Institute, Singapore; the2Singapore National Eye Centre, Singapore; the3Glaucoma Research Unit, Moorfields Eye Hospital, London, United Kingdom; and the
3. Biostatistics Unit and the
4. Glaucoma Research Unit, Moorfields Eye Hospital, London, United Kingdom; and the
5. From the Singapore Eye Research Institute, Singapore; the
6. From the Singapore Eye Research Institute, Singapore; the5Department of Community, Occupational, and Family Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.