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REFACTIVE SURGERY

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Refractive surgery is a procedure that changes the shape of the cornea to correct visual impairment such as myopia (near-sightedness), hypermetropia (far-sightedness), and some types of astigmatism (irregular curvature of the cornea).
For people who are nearsighted, certain refractive surgery techniques will reduce the curvature of a cornea that is too steep so that the eye’s focusing power is lessened. Images that are focused in front of the retina, due to a longer eye or steep corneal curve, are pushed closer to or directly onto the retina following surgery.
Farsighted people will have refractive surgery procedures that achieve a steeper cornea to increase the eye’s focusing power. Images that are focused beyond the retina, due to a short eye or flat cornea, will be pulled closer to or directly onto the retina after surgery.