Changes in visual function following optical treatment of astigmatism-related amblyopia |
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Authors: | Harvey Erin M Dobson Velma Miller Joseph M Clifford-Donaldson Candice E |
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Affiliation: | Department of Ophthalmology and Vision Science, The University of Arizona, 655 N. Alvernon Way, Suite 108, Tucson, AZ 85711-1824, USA. emharvey@u.arizona.edu |
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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 18.0 cy/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), 6 weeks, and 1 year showed greater improvement in astigmatic than non-astigmatic children for all measures. Treatment effects occurred by 6 weeks, and did not differ by cohort (<8 vs. >or= 8 years), but astigmatic children did not attain normal levels of visual function. |
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Keywords: | Astigmatism Amblyopia Children Visual performance Treatment |
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