Photorefractive Keratectomy (PRK)

Photorefractive Keratectomy (PRK) is a popular elective vision correction procedure that was particularly common before the advent of LASIK. This procedure is viewed by most people as the foundation of many other more modern and recent procedures such as LASIK amongst others. Indeed the only difference between this procedure and the popular LASIK vision correction surgery is that there is no creation of the protective flap common in the later. Since its inception the PRK has gained unbridled popularity due to its unmatched efficiency and convenience in a wide range of vision correction cases. Experts usually recommend this procedure to patients who would like to avoid using eye glasses or contact lenses and also happen to have thin corneas or are involved in high performance sports. These situations usually call for a procedure without a flap which can be counterproductive and less effective. This paper delves deeper into the world of PRK thus offering a clearer and more informative guide to this fantastic vision correction procedure.

Custom PRK
The custom Photorefractive Keratectomy (PRK) is a popular form of PRK that is essentially modeled on a particular patient’s case for better results. This procedure provides additional detailed information about a patient’s eye by using the popular wave front technology as follows:

  • The wave front analyzer’s software takes measurements and calculations on how the eye handles light and gives a report.
  • This data is then transferred to the laser machine which in turn comes up with an appropriate treatment method to fit a patient’s particular case.
  • By using this data the laser can more effectively and efficiently treat any vision problems accurately thus providing better and long lasting clarity in vision for the patients in all situations.

How PRK works

  • The patient is prepared for the procedure and all the toolsrequired are assembled and prepared for the procedure.
  • The surgeon uses a special instrument to secure the eye to avoid blinking.
  • Anesthetic drops are applied to numb the eye.
  • The sensitive epithelium is removed.
  • Computer controlled pulses of laser light are applied to the eye curvature while avoiding the deeper eye tissue. This step essentially makes up the eye vision correction.
  • On completion the surgeon places a clear bandage contact lens on the cornea to protect it and applies more eye drops. The eye quickly regains its natural strength after the surgery.
  • Depending on the surgery both eyes can undergo PRK on the same day or at different times. 

What to expect with PRK

Before the procedure a doctors goes to great lengths to expound what the patient should expect before, during and after a successful PRK procedure. Once the battery of screening, testing and probing is done; a patient can expect the following after the actual procedure.

  • Generally PRK presents a slower healing process and compromised vision during the actualhealing process.
  • Daily checkups with the doctor are essential until the surface layer heals completely.


Like most medical procedures PRK comes with a few discomforts especially during the healing process which are however more than compensated for in the improved and clear vision that most patients enjoy. To learn more about this procedure visit the OptiView Vision Center at any time.