everyone who has some kind of vision problems has probably worn a pair of corrective lenses once in his or her lifetime. … They do this by bending the light rays (before they enter the eye) to the degree required by your given condition. … Therefore, the greater the bending means higher prescription and thicker lens.
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A corrective lens with a power of zero is called a plano lens. these lenses are used when one or both eyes do not require correction of a refractive error. some people with good natural eyesight like to wear eyeglasses as a style accessory, or want to change the appearance of their eyes using novelty contact lenses.
I obviously know that it means you wear glasses to correct your vision, but is there any restrictions? Like do people who don't wear glasses have an advantage over me because i wear glasses?