THE TRANSMISSION OF REFRACTIVE ERRORS WITHIN ESKIMO FAMILIES


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Abstract

A study was carried out on volunteer off skimo families at Barrow. Alaska. The total population consisted of508 subjects with complete information including a clinical examination as well as retractions with and without eveloplegies. Correlations between refractive errors of parents and children as well as between blings are determined on 41 family units comprising 197 subjects. The correlations between parents and children were not significantly different from zero, whereas the correlations between blings were high and significant. These results were interpreted to suggest that there is no major herediary component involved in development of myopic refractions among the offspring while there is a strong environmental component operating to create the sibling correlations. These interpretations are supported by the fact that these is virtually no myopia among the grandparents or parents but approximately 58′ of the offspring are myopic.

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