Before we can say which is better with certainty, we first need to see what the difference between these two techniques is. The main and the most obvious difference is the first step of each procedure. Now, both procedures are very similar but there is one slight difference. When it comes to refractive surgery, these new procedures really innovated the way it is done and the recovery process is far shorter than it used to be.
PRK or photorefractive keratectomy is a type of refractive eye surgery where a laser is used to correct astigmatism, hyperopia, which is farsightedness, and myopia or nearsightedness. This is the first vision correction procedure where a laser is used for correction. There is a small difference in the time a patient needs to recover with PRK taking a bit longer because the procedure itself is a bit more complex.
It turned out that PRK is better than Lasik for some patients because it actually offers them some advantages that Lasik cannot offer them. Now, we mentioned before that PRK and Lasik work in the almost same way with the difference being the first step of the surgery. Both procedures work by reshaping the cornea using an excimer laser. By reshaping the cornea, the light is allowed to enter the eye under a different angle and it enhances the vision.
The difference between procedures
Lasik basically means that a femtosecond or a microkeratome laser is used to create a thin flap on the cornea. A bit different than this is PRK where the thin outer layer of the cornea which is called epithelium gets removed completely and the underlying corneal tissue gets reshaped. The epithelium just grows back over the cornea which takes a couple of days of the recovery after the procedure. But the results are absolutely amazing.
Basically, these two procedures are almost identical and the only difference is how they treat the upper flap of the cornea. One procedure replaces it, the other removes it while the rest of it is the same. Even the final results are comparable. The only difference is the recovery period. PRK takes a bit longer because the corneal tissue needs to heal after being removed. But other than that, it is pretty much the same thing.
Now, for some patients, Lasik is better, but for the others, PRK is much more effective. It all depends on how much their cornea tissue is actually damaged. A slight reposition like Lasik could improve their vision but for some of them, PRK is better because it gives them better results.
The patients who undergo PRK are a bit more exposed to the risks of haziness of vision and eye infection. The effects of Lasik are visible after a few days while PRK takes up to several weeks. If you are interested in undergoing one of these procedures, find out the Lasik price by clicking on this link and get all the info.