Keratomileusis, Laser In Situ

**Definition:** A surgical procedure to correct MYOPIA by CORNEAL STROMA subtraction. It involves the use of a microkeratome to make a lamellar dissection of the CORNEA creating a flap with intact CORNEAL EPITHELIUM. After the flap is lifted, the underlying midstroma is reshaped with an EXCIMER LASER and the flap is returned to its original position.

**Tree numbers:** - E02.594.480.750 - E04.014.520.480.750 - E04.378.500.750 - E04.540.825.437.374

**Synonyms:** - Laser In Situ Keratomileusis - LASIK - Laser Intrastromal Keratomileusis - Laser-Assisted Stromal In Situ Keratomileusis