| Photorefractive Keratectomy Photorefractive Keratectomy (PRK)
PRK (photorefractive keratectomy) involves the removal of the top surface level of the cornea called the epithelium. This exposes the inner cornea so that a cool ultraviolet laser can re-sculpt it to alter the curvature of the eye. For nearsighted people the surgeon flattens the steep cornea and for farsighted people he or she makes the cornea steeper. The laser can also correct astigmatism by smoothing an irregularly shaped cornea. This allows the...Read More |