Like LASIK PRK, LASEK use the excimer laser to shape the cornea. These surface ablation techniques are sometimes recommended instead of LASIK for people with thin corneas because they do not penetrate as deeply into the eye's surface.
In PRK, the epithelium, the layer of cells covering the cornea, is gently removed and the excimer laser sculpts the cornea to correct refractive error. A 'bandage' contact lens is placed on the eye following the procedure to speed the epithelial regeneration, which usually takes three to four days. This may also be recommended if you are in the armed forces or have physically challenging hobbies or occupation.
LASEK, unlike PRK, attempts to preserve the epithelium. In LASEK, the epithelium is loosened and peeled back to expose the cornea. The excimer laser then reshapes the cornea and the epithelium is placed back into position.
Patients experiencing refractive errors - myopia, hyperopia or astigmatism, who's corneas are too thin for LASIK.
10-15 minutes per eye.
20/20 vision without the need for contact lenses or glasses.
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