>I don't think human optic abilities have deteriorated so much as human culture has shifted. You are simply wrong. This is a well demonstrated reality: We have

>I don't think human optic abilities have deteriorated so much as human culture has shifted. You are simply wrong. This is a well demonstrated reality: We have more myopia than we used to. It probably (as in, initial studies are showing) that it has to do with getting enough sunlight.