LASIK (Laser-Assisted In Situ Keratomileusis) and PRK (Photorefractive Keratectomy) are popular laser eye surgeries used to correct refractive errors such as myopia, hyperopia, and astigmatism. Both procedures reshape the cornea to allow light entering the eye to be properly focused onto the retina, thereby improving vision.
How Do They Work?
LASIK (Faster Recovery)
A thin flap is created on the cornea.
A laser gently reshapes the tissue underneath.
The flap is put back in place—no stitches needed!
✅ Best for: People with normal corneal thickness
✅ Recovery: 24–48 hours
PRK (Better for Thin Corneas)
The outer corneal layer is gently removed (no flap).
A laser reshapes the cornea.
The outer layer grows back naturally.
✅ Best for: Thin corneas, dry eyes, or certain jobs (military, athletes)
✅ Recovery: 3–5 days (full healing in a few weeks)
Which One is Right for You?
Factor
LASIK
PRK
Corneal Thickness
Needs enough tissue
Works for thin corneas
Recovery Time
1–2 days
3–5 days
Pain/Discomfort
Minimal
Mild (first few days)
Final Results
Within days
Weeks to months
Your eye doctor will recommend the best option based on your eye health.
Benefits of Both Procedures
✔ Reduced or no need for glasses/contacts
✔ Quick procedure (10–15 minutes per eye)
✔ High success rates (over 90% patient satisfaction)
✔ Long-lasting results
Recovery & Aftercare
LASIK: Vision improves immediately (some dryness for a few days).
PRK: Vision clears gradually (use medicated drops for a week).
Both: Avoid rubbing eyes, swimming, or makeup for a few days.
FAQs
Q: Does it hurt?
A: No! Numbing drops are used—you may feel slight pressure.
Q: Are results permanent?
A: Yes! But aging (like presbyopia) may still require reading glasses later.
Q: Can everyone get LASIK/PRK?
A: Not always. Your doctor will check corneal thickness, eye health, and prescription stability.
Dr. Helia Shayanfar is a distinguished ophthalmologist based in Mashhad, Iran, specializing in corneal and anterior segment surgeries. Her academic […]
Dr. Hesam Hashemian is a prominent ophthalmologist and associate professor at Tehran University, associated with the Farabi Ophthalmology Hospital. His […]
Dr. Alireza Moghaddasi is a distinguished ophthalmologist and cornea specialist, recognized for his expertise and extensive experience in the field […]
Dr. Mohammad Mehdi Sadoughi is a highly respected medical professional specializing in ophthalmology. He holds the prestigious position of Professor […]
