1. Department of Ophthalmology, University of Jos, Jos, Nigeria
2. Sightsavers, Kaduna, Nigeria
3. Kilimanjaro Centre for Community Ophthalmology International, Division of Ophthalmology, University of Cape Town, Cape Town, South Africa
4. School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa
5. Department of Public He\alth, The Environment and Social Determinants of Health, World Health Organization, Geneva, Switzerland
6. Task Force for Global Health, Decatur, GA, USA
7. Ophthalmology Unit, Surgery Department, Usmanu Danfodiyo University, Sokoto, Nigeria
8. National Eye Centre, Kaduna, Nigeria
9. Department of Ophthalmology, Federal Medical Centre, Makurdi, Nigeria
10. Ministry of Health, Benue State, Makurdi, Nigeria
11. Federal Ministry of Health, Abuja, Nigeria
12. Clinical Research Department, London School of Hygiene & Tropical Medicine, London, United Kingdom
13. London Centre for Neglected Tropical Disease Research, London, United Kingdom
14. Department of Control of Neglected Tropical Diseases, World Health Organization, Geneva, Switzerland