1. Lee Kong Chian School of Medicine, Nanyang Technological University , 11 Mandalay Road, Singapore 308232 , Singapore
2. Booragoon Eye Clinic , Unit 13, 173 Davy Street, Booragoon, WA 6154 , Australia
3. Chaithanya Eye Institute , NH Ln, Sonia Nagar, Palarivattom, Kochi, Kerala 682024 , India
4. International Eye Cataract Retina Centre, Mount Elizabeth Medical Centre and Farrer Park Medical Centre , 1 Farrer Park Station Road #14-07/08, Farrer Park Medical Centre, Connexion, Singapore 217562 , Singapore
5. Department of Ophthalmology and Visual Sciences, Khoo Teck Puat Hospital , 90 Yishun Central, Singapore 768828 , Singapore