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For consumers that wear glasses or contact lenses the term LASIK is readily and widely known and many people think it is the only form of laser eye surgery or vision correction surgery involving a laser. Actually there are 2 other less known but just as effective vision enhancement surgeries. PRK (photorefractive keratectomy) and LASEK (Laser Epithelial Keratomileusis) are the other mainstream laser eye surgeries available. PRK was actually the forerunner to the more commonly known LASIK and some surgeons still prefer it for many patients depending on the size and structure of their eye. LASEK on the other hand is a combination of both LASIK and PRK that offers many benefits to the patients that undergo this form of laser eye surgery and it has proven to be very effective at improving an individual's vision clarity. LASEK differs from LASIK in the way the actual surgery is performed. With LASIK, generally speaking the portion of the eye known as the cornea has its top sliced off in order to improve the vision of the patient. Instead, LASEK relies on diluted alcohol in a solution mix that is applied to the eye in order to loosen a thin layer cells on the epithelium allowing for it to be shifted off to the side of the eye. One of the major issues with the normal LASIK procedure is what's known as the corneal flap. Because this form of eye surgery involves slicing the corneal the [1] [2] [3] 下一页 |