Relation of Civilization to Vision 99 |
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eliminated; but civilized man survives and transmits his mental characteristics to posterity. The lower animals when subjected to civilized conditions respond to them in precisely the same way as do human creatures. I have examined many domestic and menagerie animals, and have found them, in many cases, myopic, although they neither read, nor write, nor sew, nor set type. A decline in visual acuity at the distance, however, is |
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Fig. 39. A Family Group Strikingly Illustrating the Effect of the Mind Upon the Vision |
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No. 1.-Girl of four with normal eyes. No. 2.-The child's mother with myopia. No. 3-The same girl at nine with myopia. Note that her expression has completely changed, and is now exactly like her mother's. Nos. 4, 5 and 6.-The girl's brother at two, six and eight. His eyes are normal in all three pictures. The girl has either inherited her mother's disposition to take things hard, or has been injuriously effected by her personality of strain. The boy has escaped both influences. In view of the prevailing theories about the relation of heredity to myopia, this picture is particularly interesting. |
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