Femtosecond LASIK, also known as Femto-LASIK, is one of the most advanced procedures for correcting myopia, hyperopia and astigmatism.
Unlike conventional LASIKlaser correction, where a flap (incision in the cornea) is formed using mechanical cutting tool (a steel disposable blade - microkeratome), with Femto-LASIK, the cornea tissues are delicately separated using femtosecond laser beam.
In 15 seconds of flap formation, femtosecond laser directs ultrashort pulses to a pre-programmed depth. They form microbubbles, which are joined into single cut, stratifying, but not damaging the corneal tissue. In such non-contact way, a flap is modeled and formed using a photo-fracture, the flap is evenly thin over the entire area with a thickness of about 100 microns (100 microns = 0.1 mm).