1. Ministry of Health and Population, Cairo, Egypt
2. Centre for Eye Research, University of Melbourne, Melbourne, Australia
3. National Eye Health Office, Cairo, Egypt
4. Ministry of Health, Sana’a, Yemen
5. Task Force for Global Health, Decatur, GA, USA
6. Department of Public Health, the Environment and Social Determinants of Health, World Health Organization, Geneva, Switzerland
7. Magrabi Foundation, Cairo, Egypt
8. Health Office, Deir Mawass, Egypt
9. Eye Health Office, Elmenia, Egypt
10. Health Office, Abu Quorquas, Egypt
11. Eye Health Office, Bani Suef, Egypt
12. Health Office, Matai, Egypt
13. Health Office, Elfashn, Egypt
14. Kilimanjaro Centre for Community Ophthalmology, Division of Ophthalmology, University of Cape Town, Cape Town, South Africa
15. Clinical Research Department, London School of Hygiene & Tropical Medicine, London, UK
16. Department of Control of Neglected Tropical Diseases, World Health Organization, Geneva, Switzerland