1. Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland
2. Clinical Research Institute, American University of Beirut Faculty of Medicine, Beirut, Lebanon
3. Department of Ophthalmology, American University of Beirut Faculty of Medicine, Beirut, Lebanon
4. Welch Medical Library, Johns Hopkins University School of Medicine, Baltimore, Maryland
5. Centre for Public Health, Queen's University Belfast School of Medicine Dentistry and Biomedical Sciences, Belfast, United Kingdom
6. Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
7. International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
8. School of Optometry and Vision Science, University of Auckland, Auckland, New Zealand
9. International Centre for Evidence in Disability, London School of Hygiene & Tropical Medicine, London, United Kingdom
10. Moorfields Eye Hospital, London, United Kingdom
11. Department of Ophthalmology and Visual Sciences, University of Michigan, Ann Arbor
12. Institute for Healthcare Policy and Innovation, University of Michigan, Ann Arbor
13. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland