1. Advanced Eye Centre, Department of Ophthalmology, Post Graduate Institute of Medical Education and Research (Pgimer), Chandigarh, India
2. Department of Ophthalmology, IRCCS San Raffaele Scientific Institute, Milan, Italy
3. Department of Ophthalmology, Singapore National Eye Centre, Singapore, Singapore
4. Department of Ophthalmology, Singapore Eye Research Institute, Singapore, Singapore
5. Moorfields Eye Hospital, NHS Foundation Trust, London, UK
6. National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore, Singapore