1. Vision and Eye Care Programme; World Health Organization; Geneva Switzerland
2. Ophthalmic Epidemiology Research Center, Research Institute for Ophthalmology and Vision Science, Shahid Beheshti University of Medical Sciences; Tehran Iran
3. Centre for Eye Research Ireland, Environmental Sustainability and Health Institute; Technological University Dublin; Dublin Ireland
4. Centre for Ophthalmology and Visual Science, Lions Eye Institute; University of Western Australia; Perth Australia
5. International Centre for Eye Health (ICEH); London School of Hygiene & Tropical Medicine; London UK
6. Noncommunicable Diseases; World Health Organization; Melbourne Australia
7. Emory University School of Medicine; Atlanta Georgia USA
8. Department of Noncommunicable Diseases; World Health Organization; Geneva Switzerland