Before there was LASIK, today’s commonly used laser eye surgery, PRK or the Photorefractive keratectomy was popularly used. These laser eye surgery methods corrects visual problem of people with mild to moderate farsightedness, nearsightedness and astigmatism. These vision surgeries use laser to reshape the cornea of the eye so that the light passing through it will be focused by the retina which is located at the back of the eye.
When LASIK came into the picture, most patients and surgeons preferred it over its pioneer, PRK. However, there are still some who never shifted sides and continually promotes PRK over LASIK and other laser eye surgeries.
• No dry eyes problem in PRK
In LASIK operation, an epithelial flap is created on your cornea. This procedure separates the nerves beneath the cornea to the surface of your eye. With this situation, the brain does not receive the same signals from the nerves in your cornea that stimulate the production of tears. This will lead to lack of tears or a dry eye. This effect in a LASIK operation can last for several months, some for 6 months, while in rare cases, longer. Old patients undergoing the operation and those with pre-existing dry eye condition is at a higher risk for worse outcome.
• Corneal haze has now an immediate treatment
Some patients undergoing PRK pointed out that they experienced hazy vision after the surgery. Usually this corneal haze occurs when there is an aggressive healing. There is now a solution to this problem. During the operation an eye drop called the dilute mitomycin-C is administered to your eyes. This will eliminate the blurry vision. So far, no complication has been reported of users of the product.
• PRK reports of fewer complications
In a LASIK surgery, the usual problem encountered is complications related to the flap. In PRK, the only potential complication that a patient would experience is a cornea infection. However, this is very rare. According to statistics, this only happens 1 in 500 eyes. Infection or minor complications for most patients who have undergone PRK surgery are treated immediately and in almost all of the reported cases, it did not lead to severe eyesight problem.