1. Joint United Nations Programme on HIV/AIDS: AIDS Epidemic Update. Geneva: World Health Organization; 2007. Available at http://data.unaids.org/pub/EPISlides/2007/2007_epiupdate_en.pdf . Accessed February 15, 2008.
2. Cunningham ET Jr, Margolis TP: Ocular manifestations of HIV infection. N Engl J Med 1998, 339:236–244.
3. HIV/AIDS: what is the impact on prevention of blindness programmes. Community Eye Health 2003, 16:33–34.
4. Jaffar S, Ariyoshi K, Frith P, et al.: Retinal manifestations of HIV-1 and HIV-2 infections among hospital patients in The Gambia, West Africa. Trop Med Int Health 1999, 4:487–492.
5. Assefa Y, Yohannes A, Melese A: Ocular manifestations of HIV/AIDS patients in Gondar University Hospital, North West Ethiopia. Ethiop J Health Dev 2006, 20:166–169.