PRK and LASIK both reshape the cornea with laser to reduce dependence on glasses, but they differ in how the surface is treated. These differences affect recovery time, comfort, and suitability for certain corneas.
Procedure and healing
In PRK, the thin surface layer of cells is gently removed before laser treatment, then allowed to regrow. LASIK creates a flap in the cornea, lifts it, applies the laser, and replaces the flap.
- PRK avoids a deeper flap and can be safer for thinner corneas
- LASIK usually gives faster visual recovery with less early discomfort
- PRK involves a bandage contact lens and several days of soreness
- Both require regular drops and follow-up appointments
Long-term vision and risks
Long-term vision outcomes are similar for many patients when eyes are well chosen. The main differences lie in early experience and small variations in risk.
- LASIK carries a rare risk of flap-related complications or ectasia
- PRK has more early haze risk, especially with higher prescriptions
- Sports or high-impact activities may favour surface procedures like PRK
- Your surgeon will recommend the option that best balances safety and goals
