LASIK (Laser in situ Keratomileusis) is an operation technique that has been performed for over 25 years. So far over 40 million eyes have undergone a LASIK operation. The technique is safe, quick, long lasting and the healing process is uncomplicated. Often an optimal vision is achieved within 48 hours after the operation. The US Air Force and NASA have even approved this method for fighter jet pilots and astronauts after wind tunnel tests.
LASIK means simply “Changing the shape of the cornea using Laserenergy”. Using a Femtosecond laser a fine layer, a so called flap, of a diameter of 5 to 9 millimeters is cut in the cornea. It is carefully lifted and folded to the side. Then the actual ablation of deep corneal tissue is performed, to a maximal depth of 0.1 mm
After completion of the ablation the flap is repositioned over the treatment area. The ablation of the cornea reshapes it and corrects the refractive error. In the myopic eye the central part of the cornea is flattened and in the hyperopic eye the central part of cornea is steepened.
Creating the flap using a Femtosecond laser has many benefits in terms of security and precision. This devise replaces the conventional mechanical blade (microkeratome) and allows us to perform the entire LASIK operation without the use of any mechanical instrument.
Using a Femtosecond laser to create the flap also significantly increases the precision, so that the thickness of the flap corresponds exactly to the thickness that was planned. This technique makes it also possible to create much thinner flaps with a thickness of less than 0.1 mm.