A study of 21 393 Icelanders over a 50‐year‐period showed the incidence of myopia to be 3.60% in 1935 and 20.47% in 1975. The paper discribes the details of this study showing the relative frequencies of different types of refraction in different age groups and with regard to sex.
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KRISTJÅN SVEINSSON (1982) studied this question.
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