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Home ServicesMedicalRefractive correction Introduction of LASEK and PRK surgeries for the correction of refractive errors
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Introduction of LASEK and PRK surgeries for the correction of refractive errors

 LASEK and PRK are another commonly used methods for the correction of refractive errors and the treatment of astigmatism, Myopia (nearsightedness), and Hyperopia (farsightedness) around the world; the most important difference of these methods with LASIK is related to the location of X-Radiation on the cornea. In LASIK eye surgery a femtosecond laser is used to create a corneal flap to reach the mid-layer of the cornea, while in LASEK surgery the corneal flap is not created. In fact in LASEK surgery the corneal epithelium, the outermost layer of the cornea, is kept off the eye when the mid- layer underneath is shaped. On the other hand, LASEK surgery is a modified type of PRK surgery,  however, it has fewer fans than the PRK method.

In the PRK or "photorefractive keratectomy" method, using eximer laser radiations to reduce the patient's degree of nearsightedness. By using this method, the very thin layer of the cornea, at a rate of a few tens of microns, is removed and by applying changes to the corneal curvature, reduces the amount of refractive errors in the eye.