PRK (Photorefractive Keratectomy) is a safe and effective laser refractive surgery designed to correct vision problems such as nearsightedness, farsightedness, and astigmatism. During the procedure, a specialized excimer laser removes the outer layers of the cornea, allowing for precise reshaping to improve visual clarity. Unlike LASIK, PRK does not involve creating a corneal flap, making it suitable for patients with thinner corneas. Recovery may take longer than other refractive surgeries, but PRK offers lasting results and enhanced quality of life.
The PRK surgical procedure begins with anesthetic and antibiotic eye drops applied to the patient’s eyes for comfort. The surrounding area is sterilized, and the patient focuses on a red light from the laser. An excimer laser then removes the anterior layers of the cornea, correcting refractive errors. Post-surgery, mild redness may occur, but this typically resolves over time as the eyes heal.
PRK surgery, while generally safe, can lead to potential complications. These include infection, which may require treatment, and dry eyes, which can cause discomfort and necessitate artificial tears. Patients might also experience glare or halos around lights, particularly at night. Additionally, PRK haze can develop, resulting in a cloudy appearance of vision. Undercorrection or overcorrection may occur, potentially requiring further procedures to achieve optimal vision correction.
Candidates for PRK surgery should have stable vision for at least a year, sufficient corneal thickness, and no eye diseases. An eye care professional will evaluate individual eligibility.
Recovery from PRK surgery typically takes longer than LASIK. Most patients experience significant visual improvement within a few weeks, but complete healing may take several months.
Potential risks include infection, dry eyes, glare, and PRK haze. It's crucial to discuss these risks with your eye care professional before undergoing the procedure.
Patients generally experience minimal discomfort during PRK surgery due to numbing eye drops. Some may feel mild soreness during the recovery period, but this typically resolves within days.
PRK surgery provides long-lasting vision correction for refractive errors. However, age-related changes or other eye conditions may still affect vision over time.
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