Abstract
To evaluate the long-term outcomes of uveitic macular edema (ME). Longitudinal follow-up of a cohort of participants in a randomized clinical trial. A total of 248 eyes of 177 participants with uveitic ME enrolled in the Multicenter Uveitis Steroid Treatment (MUST) Trial and Follow-up Study. OCT measurements, taken at baseline and annually, were graded by reading center graders masked to clinical data. Macular edema was defined as a center macular thickness (CMT) ≥240 μm on time-domain OCT or time-domain OCT equivalent. Resolution of ME was defined as normalization of macular thickness on OCT. Relapse of ME was defined as increase in macular thickness to ≥240 μm in an eye that previously had resolution. Visual acuity was measured at each visit with logarithmic visual acuity charts. Resolution and relapse of ME. Visual acuity. Among 227 eyes with ME followed ≥1 year, the cumulative percent of eyes with ME resolving at any point during 7 years was 94% (95% confidence interval [CI], 89-97). Epiretinal membranes on OCT were associated with a lower likelihood of ME resolution (hazard ratio [HR], 0.74; 95% CI, 0.55-1.01; P= 0.05). Among 177 eyes with resolved ME, the cumulative percent with relapse within 7 years was 43% (95% CI, 32-51). Eyes in which ME resolved gained a mean of 6.24 letters (95% CI, 4.40-8.09; P < 0.001) compared with eyes that remained free from ME during the 1-year follow-up intervals, whereas eyes in which ME did not resolve experienced no gain in vision (mean change-1.30 letters; 95% CI,-2.70 to 0.09; P= 0.065), and eyes that developed ME during the year (incident or relapsed) experienced a mean loss of-8.65 letters (95% CI,-11.5 to-5.84, P<0.001). Given sufficient time and treatment, nearly all uveitic ME resolves, but episodes of relapse were common. Visual acuity results were better among eyes with resolved ME, suggesting that control of inflammation and resolution of ME might be visually relevant treatment targets.
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