Abstract
AS part of an investigation to discover whether physical defects among children increase with age, M. V. Marshall organized a survey of the use of glasses by children attending school in a representative American city.1 In all, the survey covers 8,204 children ranging in age from kindergarten to the twelfth grade; that is, 5–17 years. The results show an almost uninterrupted increase in the use of glasses, from 2.7 per cent among the youngest, to 15.7 per cent around the age of twelve, and 23.7 per cent by the time the pupils are leaving school. An additional proportion of the children, ranging between 2 per cent and 7.5 per cent, had been advised to wear glasses, but were not doing so.
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School and Society, 53, No. 1375 (1941).
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WEATHERALL, R. USE OF GLASSES AS AN AID TO VISION. Nature 148, 261 (1941). https://doi.org/10.1038/148261a0
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DOI: https://doi.org/10.1038/148261a0
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