this post was submitted on 16 Apr 2024
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[–] psud 2 points 7 months ago* (last edited 7 months ago)

There are a few ways to have bad eyesight

  • Short sighted, can only focus close up
  • Long sighted, cannot focus close up
  • Poor acuity, cannot see the detail others can see
  • Colour blindness

It looks like most of the short sightedness is caused by lifestyle since it is much more prevalent in places where children spend a lot of time indoors

The others would have affected our ancestors as much as us