Analysis reveals myopic refractive error distribution in profoundly retarded individuals, suggesting different visual needs.
The refractive error distribution of 103 profoundly retarded individuals (IQ of zero to 20) was determined. This distribution was skewed in the direction of myopia. Since no such data were available for any other profoundly retarded population, direct comparison with other studies was not possible. However, a significant difference in mean spherical equivalent was found between the profoundly retarded of this study and the combined severely and profoundly retarded of two earlier studies.
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Catherine S. Amos (1977) studied this question.
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