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Why Do We See More Clearly When We Squint Our Eyes?

Mental Floss

What a fantastic question! The short answer is: squinting changes the shape of our eye. The long answer is: the eye is a very complicated organ. Light enters the eye through the pupil and travels to the lens. The lens uses muscles in the eye to change shape in order to focus the light on a sensory area at the back of the eye known as the retina. The retina contains both rod cells (vision in low light) and cone cells (color vision). A very small spot in the middle of the retina, known as the fovea, is made up of only cones and is responsible for our ability to see fine details clearly. Once light reaches the retina, it encounters a chemical called rhodopsin which converts the light into an electrical impulse that our brain can process as vision. Sounds too scientific to understand? Relax, this video will arrange everything systematically!

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