Femtosecond-assisted (Femto) laser in-situ keratomileusis (LASIK) is a type of laser eye surgery. This method, along with other refractory surgeries, is used to reshape the cornea of the eye in an effort to resolve vision problems.Keratomileusis, or the sculpting of the cornea as a way to correct refractive errors, was first developed in 1948 Trusted Source using a small surgical tool with an oscillating blade called the microkeratome.This first method, using a mechanical tool, was known as anterior lamellar keratoplasty (ALK). In the late 1980s and early 1990s, technology for this procedure improved.