1. School of Optometry, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR
2. Research Centre for SHARP Vision, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR
3. Centre for Eye and Vision Research (CEVR), 17W Hong Kong Science Park, Hong Kong
4. College of Optometry, Nova Southeastern University, Fort Lauderdale, Florida, United States