1. Singapore Eye Research Institute, Singapore National Eye Centre, Singapore 2Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore
2. Singapore Eye Research Institute, Singapore National Eye Centre, Singapore 2Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore 3National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore
3. Singapore Eye Research Institute, Singapore National Eye Centre, Singapore 4Department of Ophthalmology and Visual Sciences, the Chinese University of Hong Kong, Hong Kong
4. Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
5. Singapore Eye Research Institute, Singapore National Eye Centre, Singapore 2Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore 5Ophthalmology and Visual Sciences, Academic Clinical Program, Duke-NUS Medical School, Singapore