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What is Surface Ablation (Photorefractive Keratectomy (PRK) or LASEK)?

April 26, 2017ablation keratectomy LASEK photorefractive PRK

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What is Surface Ablation (Photorefractive Keratectomy (PRK) or LASEK)?

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During surface ablation, the epithelium (the outermost protective layer of the eye) is removed, then the excimer laser energy is applied to contour the front layers of the cornea. With surface ablation, there is generally a lengthier healing process and more discomfort than with LASIK. However, surface ablation requires less instrumentation and avoids the creation of the corneal flap and its attendant risks.