LASEK and PRK are very similar surface laser procedures designed to protect corneal strength. The main difference is how the surface layer of cells is handled before treatment.
Approach to the epithelium
In PRK, the epithelium is removed and discarded so it can regrow naturally. LASEK uses alcohol to loosen the layer, which is then gently moved aside and sometimes repositioned at the end.
- Both leave the deeper cornea untouched by flaps
- Bandage contact lenses are used with either method during early healing
- Pain and blurred vision are common in the first few days
- Long-term corneal strength is similar for both techniques
Choosing between the two
Many clinics regard outcomes as comparable, so preference may follow surgeon experience. Safety and stability guide the final choice.
- Some surgeons favour PRK for simplicity and predictable healing
- Others use LASEK when they hope to protect more surface tissue
- Visual results after a few months are usually alike
- Your clinician will explain which option best suits your eyes and activities
