why does squinting help you see a little better when you don’t have your glasses on?

Question

why does squinting help you see a little better when you don’t have your glasses on?

In: Biology

Answer 1

You are creating a smaller aperture, which improves focus (as in a camera, when you pick a smaller aperture).

Try this: without glasses, look at something far away that is out of focus for you, no squinting.

Now, make a tiny hole with your two thumbs and your two indices, but really a pinpoint hole. Use the point of your fingers and press hard. Look through this hole and — magic — whatever you see through the hole is in better focus!