Abstract
Effects of optical correction on best-corrected grating acuity (vertical (V), horizontal (H), oblique (O)), vernier acuity (V, H, O), contrast sensitivity (1.5, 6.0, and 18.0cy/deg spatial frequency, V and H), and stereoacuity were evaluated prospectively in 4- to 13-year-old astigmats and a non-astigmatic age-matched control group. Measurements made at baseline (eyeglasses dispensed for astigmats), 6weeks, and 1year showed greater improvement in astigmatic than non-astigmatic children for all measures. Treatment effects occurred by 6weeks, and did not differ by cohort (<8 vs. ⩾8years), but astigmatic children did not attain normal levels of visual function.
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