Do Contact Lenses Really “Support Your Vision”?
Contact lenses have been frequently used as an alternative to glasses. Compared to the heavy-framed glasses in front of one’s eyes (optic glasses), thin plastic discs on the eye (contact lenses) help correct refractive errors in both myopic and hypermetropic users. The lens’ shape and power can be tailored to the user’s sight. A concave lens can be used to decrease myopia by reducing light refraction and increasing focal length so that the image is formed on the retina (1) (Figure 1). Alternatively, a convex lens can be used to limit hypermetropia in an opposing mechanism to concave lenses (1) (Figure 1). Figure 1, An illustration of myopia and hyperopia and how adding lens of different shapes in front of the eye can be used to alter the refraction of light and correct each impairment in vision (10) Besides supporting sight, which both types of lenses can do, contact lenses confer some advantages that make them preferable to glasses. Unlike glasses, contact lenses are less li...

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