Photorefractive Keratectomy (PRK)
PRK (Photorefractive Keratectomy) is a type of refractive eye surgery aimed to improve vision and to eliminate the need for glasses or contact lenses. Developed in the 1990’s, PRK was the first laser refractive surgery of its kind, marking a major leap in improving the safety and predictability of refractive surgery.
How it Works
PRK is a type of laser eye surgery that corrects vision by reshaping the cornea's surface directly, avoiding the need for a flap. During the procedure, an excimer laser reshapes the cornea to help focus light properly onto the retina. PRK addresses common vision issues like nearsightedness (myopia), farsightedness (hyperopia), and astigmatism.
Who is the Candidate
PRK differs from LASIK as it is performed right on the surface of the cornea instead of creating a corneal flap. Thus in patients with thin, steep, or irregularly shaped corneas, who may not be eligible for LASIK, PRK may be a safer option. PRK is also a choice for individuals who engage in physical activities that may pose a risk of injury to the corneal flap created in LASIK (i.e. martial arts).
Safety
PRK is considered a safe and effective procedure, having been around for more than 30 years. Since PRK doesn't involve creating a corneal flap (unlike LASIK), there's no risk of flap complications. However, the recovery time for PRK is generally longer compared to SMILE and LASIK, as the surface layer of the cornea needs time to heal (usually a few weeks).
As with any surgery, there are potential risks and side effects, such as temporary discomfort, sensitivity to light, and dry eyes. Serious complications, such as ectasia and infections are rare.As always, individual experiences may vary, and consulting with an eye care professional is crucial to determine if PRK is the right option for you and to discuss potential risks and benefits based on your unique eye health and circumstances.