Question: what is the difference between lasik and epi lasik?
Answer: In epi-LASIK, the flap created on the cornea is thinner than a LASIK flap. ... In both procedures, the flap contains only cells from the very thin outer layer of the cornea, called the epithelium. The difference is how the epi-LASIK and LASEK flaps are produced. A LASEK flap is created with a tool that has a sharp blade.