1. Inclusive Eye Health and Neglected Tropical Diseases Initiative , CBM Christoffel-Blindenmission Christian Blind Mission e.V., Wellington House, East Road CB1 1BH, Cambridge , UK
2. Department of Zoology, Federal University of Technology , Lokoja, Kogi State, Nigeria
3. HANDS, 5A Naomi Jugu Drive , Rayfield, Jos, Plateau State, Nigeria
4. CBM Christoffel-Blindenmission Christian Blind Mission e.V Nigeria Country Office , 13 Okemesi Crescent, Garki 2, Federal Capital Territory, Abuja, Nigeria
5. HANDS, 5A Naomi Jugu Drive, Rayfield , Jos, Plateau State, Nigeria