I don't think nearsightness is genetic

来源: ##^^## 于 2007-01-28 14:48:34 [] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (176 bytes)
because it doesn't make sense. It is clearly a big
disadvantage in the evolution to be nearsighted. And
there is no reason for so many people have this defect.

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