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
Humans are unable to live alone in the wild for prolonged periods of time. A hunter-gatherer tribe can do fine if half of its members have poor vision for objects at a long distance as long as the other half have quite good eyesight.
There is also a mechanistical explanation that late 20th century/early 21th century society puts kids indoor for too long and that not having indirect sunlight into the eyes make the orbit not stop growing, so that myopia is much more common than in the past decades.
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