Excimer laser corneal refractive surgeries for refractive error corrections can be divided in two categories: intrastromal ablations (LASIK, FS-LASIK, SMILE) and surface (sub-epithelial) ablations (PRK, LASEK, Epi-LASIK, TPRK). Even though intrastromal ablations are also in the mainstream, surface ablations will become more popular due to surgical safety and intact corneal biomechanics without any flap complications. The most problems causing concern are post-operative pain and haze that can be minimized with topical non-steroid anti-inflammation drugs and mitomycin C, respectively.
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