The Key Differences Between LASIK and PRK

When it comes to treatment of certain vision related problems such as myopia, hyperopia, astigmatism and presbyopia , LASIK and PRK are the two treatments which top the list as they have proven to be very successful over the years. But if you were to make a choice between the two, how would you know which among them is the best option for you? Here’s a short comparison of these two treatments.

LASIK is basically a corrective laser eye surgery which has been developed to treat certain vision problems such as myopia, hypermetropia and astigmatism. The treatment involves usage of Excimer laser. This laser is utilised for the purposed of reshaping the surface of the cornea, a medium  through which allows the passage of light into the eyes. This treatment is performed beneath corneal flap created by a laser. Once this is complete, the flap is repositioned. The flap heals quite rapidly and the collagen adhered which means the chances of the flap moving would be very unlikely.  PRK, which refers to Photo Refractive Keratectomy, is also a type of laser eye surgery. However, unlike LASIK surgery, PRK is performed on the surface of the cornea, not beneath it.
As far as the results of these treatments are concerned, they both have been very successful. In PRK treatment, instead of creating a corneal flap, eye specialists completely remove the upper most layer of the cornea. This step is then followed by reshaping of the cornea with the same excimer laser which is used for LASIK. PRK, therefore, is a better option for all those people who have a thinner cornea or suffer from dry eyes problem.

The Star S4 Excimer laser, which is used during LASIK and PRK, reshapes the cornea whilst  utilising a computer programmed mapping  to carefully reshape the cornea so that light can come to focus on the retina allowing for spectacle and contact lens independence. This is known as CustomVue , which tailors a treatment for individuals based on the blue print of their eyes, allowing for 3D tracking and correction of any eye movements during the excimer laser process.

Another important difference between LASIK and PRK is that PRK has a longer downtime compared to LASIK. This is because the outer layer of cornea is removed during this procedure, which requires more time to heal. Therefore, the patients undergoing PRK are given prescription drops to ensure faster healing and minimal discomfort. It would take around 6 to 7 months to achieve absolute vision clarity.

LASIK, on the other hand, has a shorter recovery period. Also, the intensity of discomfort is not as high as PRK. You might experience immediate improvement in your vision after the surgery but it might still take a few months for the vision to reach its peak quality.

In case, you are still unsure about which treatment would prove to be the best choice, you should get in touch with the eye specialists at Perfect Vision, Australia’s leading iLASIK practice, to get all your doubts cleared in no time. For appointment, call 13 13 40 or visit