Visual prognosis of AIDS patients with cytomegalovirus retinitis.

A prospective study of visual acuity (VA) was performed in a cohort of 147 AIDS patients with cytomegalovirus retinitis (CMVR). Patients were treated according to standard regimes, and corrected VA was recorded at regular intervals from presentation until death. Follow-up was 6 weeks to 5 years (mean 30 weeks). Fifty patients (34%) had bilateral CMVR at initial presentation; at death 81 patients (55%) had bilateral disease. Thirty-one eyes initially uninfected developed CMVR during follow-up. Of 228 infected eyes, VA at presentation was 6/12 or better in 182 eyes (80%) and 6/60 or better in 215 eyes (94%) At death, VA was 6/12 or better in 112 eyes (49%) and 6/60 or better in 171 eyes (75%). VA in the better eye at death was 6/12 or better in 113 of 147 patients (77%), 6/24 or better in 135 patients (92%) and worse than 6/60 in only 7 patients (5%). Treatment of AIDS-related CMVR minimises loss of vision and may protect previously uninfected eyes, prolonging visual independence.