1. Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China
2. Hong Kong Eye Hospital, Hong Kong, China
3. Department of Ophthalmology, National Taiwan University Hospital, Taipei, Taiwan
4. National Healthcare Group Eye Institute, Tan Tock Seng Hospital, Singapore
5. Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA
6. 2010 Retina and Macula Centre, Hong Kong, China