A-Z OF EYES
Photo-refractive keratectomy, also known as PRK, is a procedure that corrects vision by reshaping the cornea. With PRK, the corneal epithelium is removed and discarded, allowing the cells to regenerate after the surgery. This procedure can be used to correct shortsightedness, farsightedness and astigmatism.
PRK (Photo refractive keratectomy) is a procedure whereby the front surface of the cornea is reshaped to correct your refractive error. The process is also called Excimer Laser Photo Ablation or laser surface ablation. The process precisely removes tissue from the front surface of the cornea without damaging surrounding tissue.
This procedure is commonly used to reduce the chance of complications that can occur when a flap is created as with LASIK or when the cornea is too thin to cut a flap.
On the day of the surgery the surgeon carefully removes the corneal epithelium. The Excimer Laser ablates the underlying layers during the PRK procedure to alter the cornea to the required shape.