THE EFFECTS OF CORRECTIVE LENSES ON VARIOUS BEHAVIORS OF MENTALLY RETARDED PERSONS

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Abstract
A questionnaire was developed to measure changes in certain behaviors at various intervals after correction of refractive errors in a sample of mentally retarded persons. The sample comprised 3 age groups: 0-6 yr, 7-17 and 18 and above. In each age group, 4 subgroups were selected, 1 experimental (new glasses) group and 3 control groups. In the group which received new spectacles, changes were recorded in social behaviors, gross and fine motor skills, and reading and writing skills. These changes were most evident in the youngest age group.

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