why does squinting help you see a little better when you don’t have your glasses on?
In: Biology
This is actually a physics question as much as biology. It’s a phenomenon called the “pinhole effect” where only having a small aperture for light to enter lowers the area that that light covers when hitting your retina. This gives the effect of sharpening the image, because image blurriness is a function of the area of light hitting your retina.
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