Activity impairment by visual acuity in the better-seeing eye at baseline.
Mean change in activity impairment from baseline over 104 weeks by baseline visual acuity in the better-seeing eye. Error bars represent 95% confidence intervals.There was a similar relationship between study eye VA and activity impairment. At baseline, the mean activity impairment was 45% when study-eye VA was 20/25 to 20/40 (N = 31) and 59% when 20/50 or worse (N = 173); at 104 weeks, the mean activity impairment was 14%, 25%, and 41% when study eye VA was 20/20 or better (N = 58), 20/25 to 20/40 (N = 68), or 20/50 or worse (N = 48), respectively (