Blasik

Epi-LASIK is more comfortable and restores vision faster than PRK, say surgeons. Though LASIK is currently the most popular laser vision correction surgery, there are times when an alternative procedure may be preferred. This is especially true if your corneas appear to be too thin for a safe LASIK procedure. Alternative procedures include PRK and epi-LASIK. Both of these surgeries are called "surface ablation" procedures because only the thin outer protective layer of the cornea (the epithelium) is removed prior to the laser treatment.

Read more to find how they differ.