Changes in visual function following optical treatment of astigmatism-related amblyopia.
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.
Harvey
Erin M
EM
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
Dobson
Velma
V
Miller
Joseph M
JM
Clifford-Donaldson
Candice E
CE
D000293:Adolescent; D000550:Amblyopia / Q000209:etiology / Q000503:physiopathology / Q000523:psychology / Q000628:therapy*; D001251:Astigmatism / Q000150:complications* / Q000628:therapy; D002648:Child; D002675:Child, Preschool; D015350:Contrast Sensitivity; D003867:Depth Perception; D005139:Eyeglasses; D005500:Follow-Up Studies; D006801:Humans; D011446:Prospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity