1. Department of Statistics, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
2. Department of Computer Science, University of Surrey, Guildford, Surrey, UK
3. NIHR Biomedical Research Centre at Moorfield Eye Hospital and the UCL Institute of Ophthalmology, London, UK
4. Faculty of Medicine, King Abdulaziz University, Saudi Arabia
5. Ophthalmology Department, Faculty of Medicine, University of Jeddah, Saudi Arabia
6. Centre for Public Health, Queen's University Belfast, Northern Ireland, UK
7. International Centre for Eye Health, Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
8. 7th Medical Center of PLA General Hospital, Diabetes Professional Committee of China, Geriatric Health Association, P.R. China