PRK (Photorefractive Keratectomy) is actually a technique wherein the top layer on the cornea is taken out along with the laser is then used directly to the cornea. It doesn’t contain the generation of the partial thickness corneal flap. SLT is used for open-angle glaucoma to scale back eye tension. https://yourbookmarklist.com/story21164343/little-known-facts-about-lasik-treatment-in-delhi