1. From the Singapore National Eye Centre and Singapore Eye Research Institute; the2Institute of Ophthalmology, University College London, United Kingdom; the3Glaucoma Research Unit, Moorfields Eye Hospital, London, United Kingdom; the
2. Division of Clinical Trials and Epidemiological Sciences, National Cancer Centre, Singapore; the
3. From the Singapore National Eye Centre and Singapore Eye Research Institute; the5Departments of Ophthalmology and
4. Community, Occupational and Family Medicine, National University, Singapore.
5. Institute of Ophthalmology, University College London, United Kingdom; the
6. Institute of Ophthalmology, University College London, United Kingdom; the3Glaucoma Research Unit, Moorfields Eye Hospital, London, United Kingdom; the