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Why Do Short Sighted People Tend To Have Higher IQ?
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- 1184 views Category: General | By Anonymous |
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Anonymous
Feb 17th, 19:18
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Many studies have shown a relationship between myopia and IQ. According to Arthur Jensen, myopes average 7-8 IQ points higher than non-myopes. The relationship also holds within families, and siblings with a higher degree of refraction error average higher IQs than siblings with less refraction error. Jensen believes that this indicates myopia and IQ are pleiotropically related (both myopia and IQ are caused by the same genes). The mechanism that has caused a relationship between myopia and IQ is not yet known with certainty (Jensen, 1998).There is also the paper "IQ and the Association with Myopia in Children" from The Association for Research in Vision and Ophthalmology, Inc. Dunno how respectable that organization is, but it's another cite in support of the basic thesis:Quote:RESULTS. After controlling for age, gender, school, parental myopia, father’s education, and books read per week, myopia (spherical equivalent [SE]) of at least –0.5 D was associated with high nonverbal IQ (highest quartile) versus low IQ (lowest quartile) (odds ratio = 2.4; 95% confidence interval, 1.7–3.4). Controlling for the same factors, children with higher nonverbal IQ scores had significantly more myopic refractions (–1.86 D for children with nonverbal IQ in the highest quartile compared with –1.24 D for children with nonverbal IQ in the lowest quartile; P = 0.002) and longer axial lengths (24.06 mm versus 23.80 mm; P = 0.022). Nonverbal IQ accounted for a greater proportion of the variance in refraction compared with books read per week.(Emphasis mine.) Fascinating. For the record, I'm very much myopic. [Quote] +respect. 59 -throway.20 |
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