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Visual acuity as measured by a Snellen chart at each follow-up interval. The three groups showed no statistically significant difference in visual acuity in most of the follow-up interval except for the 12-month follow-up, at which time the intravitreal triamcinolone injection (IVTA) group showed a statistically significant decrease in visual acuity (graphed on the logarithm of the minimum angle of resolution [logMAR] scale). IVB = intravitreal bevacizumab injection.
