title: Effects of induced hyperopia.
abstract: Hyperopia of 1.00, 1.50, and 2.00 D was induced in 42 subjects by means of concave lenses. A significant decrease in performance on a standard intelligence test occurred with the highest-power lenses. Symptoms induced indicate that the results are applicable to hyperopia. Prescriptions and vision screening criteria for hyperopia are indicated.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002986:Clinical Trials as Topic; D004410:Dyslexia / Q000209:etiology*; D005139:Eyeglasses; D006261:Headache / Q000209:etiology; D006801:Humans; D006948:Hyperkinesis / Q000209:etiology; D006956:Hyperopia / Q000150:complications*; D007360:Intelligence; D007361:Intelligence Tests; D007859:Learning Disabilities / Q000209:etiology; D009325:Nausea / Q000209:etiology; D011795:Surveys and Questionnaires