From a previous ELI5, I know that squinting helps you see better because you flex your cornea which helps bend the light to get a better focal point, but shouldn’t squinting when you have your glasses on/contacts in cause an overcorrection as if you are wearing an overprescribed pair of glasses/contacts?
In: 42
No one has gotten it right here yet.
The lens is the most important part of the eye, next to the retina that is. People have a hard time focusing on things simply because the lens is not properly aligned. Light comes into the lens and HAS TO CONVERGE onto the retina, hence we’re all actually seeing an upside down image of the world our brains just flip it.
What has this got to do with squinting? We’ll, the focal point of the lens has to be perfectly placed so that it hits the retina, if it converges too early you become short sighted, if it converges after the retina then you become long sighted.
What you are doing by squinting is applying pressure to the iris causing the lens to compress hence changing the focal point. Glasses also help by changing the focal point so that light hits the retina.
People on here talking about smaller rays of light have no clue what they’re on about lmao
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