CD4 and retinitis: Secondary outcomes will include changes in HIV virological suppression and serum CD4+ T-cell counts, the incidence of mortality, retinitis progression (movement of the peripheral border of a CMV lesion ≥ 1⁄2 disc diameter, or occurrence of a new CMV lesion), retinal detachment, immune recovery uveitis (IRU), and other OIs and adverse events between the two study groups during the 48 weeks of follow-up.