The most popular and well-known laser refractive procedure to treat vision issues is LASIK eye surgery. LASIK, also known as laser-assisted in situ keratomileusis, is an option to glasses or contact lenses. A specialized cutting laser is used during LASIK surgery to accurately alter the shape of the cornea, the dome-shaped transparent tissue at the front of the eye, to enhance vision. The cornea accurately bends (refracts) light onto the retina at the back of the eye in eyes with proper vision. However, nearsightedness, farsightedness, or astigmatism cause the light to be bent incorrectly, causing blurred vision. Although vision correction with glasses or contact lenses is an option, reshaping the cornea will also produce the required refraction. One of these eyesight issues may be corrected by LASIK surgery: Myopia, or nearsightedness. Light rays focus in front of the retina and distort distant vision when the cornea curves too sharply or when your eyeball is a tiny bit longer than average. Nearby items can be seen fairly clearly, but distant ones cannot. hyperopia, or being farsighted. Light focuses behind the retina rather than on it when the cornea is overly flat or the eyeball is shorter than typical. This causes blurry near- and occasionally far-sightedness.
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