Ok I get we all look at small letters and images on screens and paper these days. Is this why in the last 150 years or so millions and millions of humans need spectacles? Is it because we are meant to be looking at things from a distance rather than nearby so our eyes haven’t caught up?
In: Biology
Besides all the answers about what *causes* more nearsightedness, there’s also no more evolutionary selection against it. Assume it was very genetic, the ancient people which needed glasses just died much sooner because of all kinds of dangers, and then have fewer nearsighted children.
Today, a kid with glasses has the same survival chances as one without. At least in a developed country.
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