1. Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China
2. School of Optometry, The Hong Kong Polytechnic University, Kowloon, Hong Kong
3. Research Centre for SHARP Vision, The Hong Kong Polytechnic University, Kowloon, Hong Kong
4. Shantou University Medical College, Shantou, China
5. Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Kowloon, Hong Kong