R. Lusobya, G. Ssali-Nsibirwa, J. Kiggundu, I. Atukunda, S. H.A., and J. Otiti- Sengeri, “Impairment of vision among commercial motorcyclists (Bodaboda riders) in Uganda”, J Ophthalmol East Cent South Afr, vol. 22, no. 02, Dec. 2018.