1 Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore; Department of Ophthalmology, National University Hospital, Singapore.
2 Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
3 Cardiovascular Disease Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore; Department of Cardiology, National University Heart Centre, National University Health System, Singapore.