We can all hear our mothers or grandmothers in the back of our heads: “Stop squinting!
You’ll hurt your eyes!”
According to doctors, it’s the latter.
That said, it does actually help you see better in that moment.
“By closing your lids together it further enhances your focus” (via ABC News).
This is why you’re inclined to squint when you’re having trouble bringing something into perfectly clear focus.
