PRKleikkaus

PRKleikkaus, commonly known as photorefractive keratectomy, is a type of refractive surgery used to correct vision problems such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. The procedure involves reshaping the cornea, the clear front layer of the eye, to improve the way it focuses light onto the retina. Unlike more modern techniques like LASIK, PRK does not require the creation of a corneal flap, as the outer layer of the cornea, called the epithelium, is temporarily removed before the laser treatment.

The surgery is performed under local anesthesia, typically using eye drops, and is usually an outpatient procedure, meaning patients can return home the same day. A laser, often an excimer laser, is used to precisely remove microscopic amounts of corneal tissue to alter its curvature. The epithelium naturally regenerates over the course of a few days, during which time patients may experience discomfort and blurred vision. Recovery times can vary, but most individuals achieve stable vision within a few weeks to months.

PRKleikkaus is generally recommended for patients with mild to moderate refractive errors, thin corneas, or those who are not suitable candidates for LASIK due to factors like dry eyes or occupational hazards that could damage a corneal flap. Potential risks and complications include dry eyes, glare or halos around lights, undercorrection or overcorrection of vision, and, in rare cases, corneal infections or scarring. As with any surgical procedure, individual results may vary, and a thorough consultation with an ophthalmologist is essential to determine eligibility and discuss expectations.

The procedure has evolved over time, and while it remains an effective option, newer techniques like SMILE (Small Incision Lenticule Extraction) and advanced surface ablation methods have also gained popularity for their potential advantages in terms of recovery and safety. Patients considering PRKleikkaus should discuss the benefits and drawbacks with their eye care provider to make an informed decision.