[1] Riemann Ltd, London, England
[2] Clearly Initiat, London, England
[3] Australian Natl Univ, Res Sch Biol, Canberra, ACT, Australia
[4] Univ South Eastern Norway, Fac Hlth & Social Sci, Natl Ctr Opt Vis & Eye Care, Notodden, Norway
[5] Ulster Univ, Biomed Sci Res Inst, Ctr Optometry & Vis Sci, Coleraine, Londonderry, North Ireland
[6] Queens Univ Belfast, Ctr Publ Hlth, Dept Sch Med, Ulverscroft Chair Global Eye Hlth, Belfast, Antrim, North Ireland
[7] Orbis Int, Lenexa, KS USA
[8] Royal Victoria Hosp, Inst Clin Sci, Ctr Publ Hlth, Sch Med Dent & Biomed Sci, Belfast, Antrim, North Ireland
[9] Univ KwaZulu Natal, Coll Hlth Sci, Sch Optometry, Durban, South Africa
[10] New England Coll Optometry, Boston, MA USA
[11] London Sch Hyg & Trop Med, Fac Infect & Trop Dis, Global Res Consortium Sch Hlth & Nutr, London, England