why does squinting improve vision?

Question

At least for me, I notice that when I squint, my vision becomes sharper. I don’t know if this is a common thing, but I’m curious as to why it happens

In: Biology

Answer 1

When you squint, the size of the pupil gets smaller allowing only a small amount of light to pass (the light from other directions are restricted). This enhances your focus and you’re able to see things clearly.