PRK (Photorefractive Keratectomy) Is a method by which the very best layer on the cornea is taken off as well as laser is then used directly to the cornea. It doesn’t contain the development of a partial thickness corneal flap. SLT is useful for open-angle glaucoma to reduce eye tension. https://directoryrecap.com/listings13477804/top-guidelines-of-lasik-eye-surgery-in-delhi