[1] Natl Univ Singapore Hosp, Dept Ophthalmol, Singapore, Singapore
[2] ASTAR, Inst Mol & Cell Biol IMCB, Singapore, Singapore
[3] ASTAR, Inst Mat Res & Engn IMRE, Singapore, Singapore
[4] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Ophthalmol, Singapore, Singapore
[5] Nanyang Technol Univ, Lee Kong Chian Sch Med, Singapore, Singapore
[6] Natl Univ Singapore, Dept Physiol, Singapore, Singapore