CD4 and cytomegalovirus retinitis: The results of the present study showed the presence of ocular diseases and CMV retinitis in 26% and 5% of patients with CD4 <50 /μL, and in 22% and 3% of patients with CD4 <200 /μL, respectively, but only in 5.4% and 0% of patients with patients with CD4 count ≥200 /μL.