How did cavemen and hunter-gatherers who were near-sighted survive? I can barely even find my shoes w/out my ?
glasses.
Let alone run after wild buffalo , deer, or wildebeasts.
I don't see how it's possible to even find your home cave if you're a near-sighted cave man. Did their friends kill them because they were a burden to the tribe because they didn't understand what bad eyesight was back then? They probably thought they were lazy or stupid, and not pulling their load, right?
They probably found other things to do closer to the cave. Found firewood, set up a defensive perimeter, tended the children, etc. The survival of the fittest mentality didn't really come about until the late 18th century. Prior to then tribes had more of a communal mentality and the old were looked to for their wisdom and guidance.