This document discusses AIDS and its ocular manifestations. It begins with an introduction to AIDS, noting that eye involvement occurs in 90% of autopsy cases and ocular complications are present in 75% of patients with AIDS. It then covers the global prevalence of HIV/AIDS, modes of transmission, pathophysiology involving destruction of CD4+ cells, common signs and symptoms affecting multiple organ systems, diagnosis including CD4+ cell counts and WHO staging, and various ocular manifestations such as CMV retinitis, toxoplasmosis retinochoroiditis, HIV retinopathy, progressive outer retinal necrosis, herpes zoster ophthalmicus, and Kaposi's sarcoma.