PRK (Photorefractive Keratectomy)

PRK (Photorefractive Keratectomy)


prkPRK was the first procedure performed using the excimer laser. It corrects vision by reshaping the cornea. In the first step, the epithelium, a thin layer of clear protective skin that covers the cornea, is removed.

After the laser reshapes the surface (as in LASIK), the epithelium grows back over the treated area, usually within 3 to 4 days. Functional vision typically returns within 5 days.

With LASIK, patients encounter less discomfort and a faster recovery time. However, PRK may be recommended for patients with larger pupils or thin corneas.