By correcting near-sightedness, far-sightedness and astigmatism using Femto-LASIK and LASIK, up to 98% of the whole visual defect of an eye can be corrected. With the wavefront measurement, individual optical errors in one eye can now be determined much more precisely than has hitherto been the case. These additionally measured optical errors are known as higher order optical aberrations. These are the most delicate irregularities that reduce the representative quality of an eye if they are particularly pronounced.
Areas of application for treatments of this kind include visual defects caused by irregularities of the cornea, which can be measured through a greater percentage of higher order optical aberrations.
These wavefront measurement data allow the achievement of an individual and ideal treatment profile for ablation with the excimer laser. These customised ablations are performed in combination with all laser corrections, i.e. Femto-LASIK, microkeratome LASIK and Epi-LASIK (LASEK/PRK).