PRK Laser Surgery
Photorefractive keratectomy or better known as PRK vision correction surgery. PRK surgery is generally performed on patients to correct farsightedness, nearsightedness and astigmatism. It is a precise laser vision correction process that uses the excimer laser to reshape the outermost layers of the cornea without creating a flap.
PRK vision correction surgery is a slightly different procedure than the poplar LASIK surgery in that LASIK shapes the cornea tissue deeper with in the eye which is exposed by creating a flap to access the deeper tissue. PRK surgery on the other hand is a flapless surgery where the surgeon uses the laser to shape the outer most surface of the cornea. The PRK vision correction procedure is often the preferred solution for patients with thin corneas or for individuals who may have corneal scars or other corneal imperfections.
Also with PRK surgery, the cornea is protected with a extended wear contact lens for five days to allow the epithelium to grow back and heal. Typically PRK patients experience a longer period of discomfort after surgery than patients who undergo LASIK surgery.