Photorefractive keratectomy (PRK) is a popular refractive surgery designed to correct common vision problems like myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. Introduced in the 1980s, PRK was the first laser eye surgery approved for vision correction and remains a go-to choice for patients with thin corneas. Unlike LASIK, PRK does not involve creating a corneal flap, making it suitable for people engaged in high-impact activities.
The journey of PRK began in the late 1980s when excimer lasers were first used to reshape the cornea. Early adopters embraced the procedure for its ability to deliver significant visual improvements without invasive surgical techniques. Over the years, advancements like customized ablation profiles and enhanced healing methods have improved its safety and outcomes.
PRK uses a highly precise excimer laser to remove microscopic amounts of corneal tissue, reshaping the cornea and improving how light is focused onto the retina. Unlike LASIK, the epithelium (outer layer of the cornea) is removed during PRK, requiring several days for it to regenerate post-surgery.
PRK effectively addresses:
Refractive errors corrected by PRK often result from:
Ideal PRK candidates meet these criteria:
Before undergoing PRK:
Early detection and treatment are crucial for children:
PRK offers:
PRK lacks the corneal flap required in LASIK, reducing risks of flap-related complications. While PRK has a longer recovery time, it is better suited for patients with thin corneas or active lifestyles.
Mild discomfort is common but manageable with prescribed pain relievers.
Initial healing occurs in 3-5 days; full visual stabilization may take months.
Prices range between $1,500 and $3,000 per eye, depending on location and technology used.
Yes, the results are long-lasting, though natural age-related changes may affect vision over time.
Yes, PRK effectively corrects astigmatism.
Absolutely, PRK is a great choice for individuals in contact sports or physically demanding activities.
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