1 National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore; Moorfields Eye Hospital and Biomedical Research Centre, Institute of Ophthalmology, University College London, London, UK; Singapore Eye Research Institute, Singapore; School of Material Science and Engineering, Nanyang Technological University, Singapore.
2 Advanced Eye Centre, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India.
3 Moorfields Eye Hospital and Biomedical Research Centre, Institute of Ophthalmology, University College London, London, UK.
4 St Joseph Mercy Hospital, Oakland, Pontiac, Michigan.
5 Department of Ophthalmology, National University Hospital, Singapore.
6 Department of Ophthalmology, Universidad del Salvador of Buenos Aires, Buenos Aires, Argentina.
7 Byers Eye Institute, Stanford Medical School, California.
8 Advanced Eye Centre, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, India. Electronic address: vishalisara@yahoo.co.in.