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What is refractive surgery?

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What is refractive surgery?

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Refractive surgery is a procedure to lessen your dependence on corrective lenses for farsightedness and astigmatism.

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During refractive surgery, the cornea is gently reshaped to better focus light rays on the retina. Depending upon the results of your full ophthalmic evaluation, your Krieger ophthalmologist will recommend the refractive surgery procedure that meets your specific needs. Refractive surgery is quickly gaining popularity due to the fact that it is an outpatient procedure which offers minimal time in surgery, fast and comfortable recovery times, as well as a diminished dependence on glasses or contacts. Millions of Americans are affected by conditions that fall under a category called “refractive errors.” Most commonly, these include myopia (nearsightedness), hyperopla (farsightedness), astigmatism, as well as combinations of astigmatism and either myopia or hyperopla. Laser Assisted Intrastromal Keratomileusis (LASIK) During LASIK , a more recent procedure to correct nearsightedness, farsightedness and astigmatism, the ophthalmologist utilizes a precise surgical instrument called an autom

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Refractive surgery includes several surgical procedures designed to eliminate or reduce the need for glasses or contact lenses. These procedures correct refractive errors by changing the focus of the eye. Common procedures such as LASIK and PRK do this by reshaping the curve of the cornea (the clear front window of the eye) to move the point at which light is focused onto the retina (light-sensitive tissue lining the back of the eye). Procedures such as conductive keratoplasty (CK) use radio frequency energy to bend the cornea, and phakic intraocular lenses (IOLs) place an artificial lens inside the eye to more accurately focus light onto the retina. The History of Refractive Surgery Ophthalmic surgeons have been performing refractive surgery for the treatment of myopia (nearsightedness), hyperopia (farsightedness), and astigmatism (irregular shaped cornea) for approximately 100 years, but the past decades have produced rapid change and growth by means of refined techniques and the eme

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The most common impairment of vision is caused by errors in refraction (or focus). Refraction occurs when light enters the eye through the cornea and lens. Refractive errors result when light rays do not come to a focus on the retina, causing the conditions of myopia (nearsightedness), hyperopia (farsightedness), or astigmatism. There are three available methods to help correct refractive errors. The first two use lenses to redirect the incoming light to focus and include glasses and contact lenses. The third is an excimer laser refractive procedure such as PRK or LASIK which can reshape the cornea to better focus incoming light. Photorefractive keratectomy (PRK) uses the excimer laser to correct nearsightedness or astigmatism by removing a small amount of tissue from the corneal surface. This reshapes the corneal surface, allowing it to better focus the image on the retina, with the goal of reducing a patient’s reliance on eyeglasses or contact lenses. With laser in situ keratomileusi

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Clear vision is the result of light rays passing through the cornea, pupil and lens and focusing directly upon the retina. If the cornea is not round or is too steep or too flat in relation to the length of the eye, light rays focus either in front of or behind the retina, resulting in “refractive errors” such as nearsightedness, farsightedness and astigmatism. Refractive Surgery is a term for several procedures designed to treat these vision abnormalities by altering the way your eye focuses light by changing the shape of your cornea Function Of The Eye In a normally structured eye, the cornea is a rounded curve. Light rays pass through the cornea and the pupil to the lens, which further “refracts” or focuses the light directly onto the retina creating a sharp and clear image. Myopia Myopia is the medical term for nearsightedness. This is a condition in which light rays entering the eye are focused in front of the retina instead of directly on it as in the normal eye. Myopia is an inh

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