Abstract: A process and an apparatus are proposed for determining optical aberrations of an eye with its optical system including the cornea and the lens. The process includes the reconstructing of wavefront aberrations of the eye as a deviation of the wavefront, determined by the optical system of the eye with a process of aberrometry, with respect to an ideal planar wavefront generated by an aberration-free eye model. A measured ocular length is employed for the aberration-free eye model.

Abstract: In a method of generating a control program, according to which a laser-beam spot is guided, while being controlled with respect to position and time, over a cornea to be corrected photorefractively, so as to ablate a predetermined ablation profile therefrom, the effect of the angle between the laser beam and the corneal surface on the energy density of the laser-beam spot incident on the corneal surface and/or on the fraction of the laser-beam energy incident on the corneal surface which is reflected away, is taken into account when generating the control program.

Abstract: Method of generating a control program for a device for photorefractive corneal surgery of the eye In a method of generating a control program, according to which a laser-beam spot is guided, while being controlled with respect to position and time, over a cornea to be corrected photorefractively, so as to ablate a predetermined ablation profile therefrom, the effect of the angle between the laser beam and the corneal surface on the energy density of the laser-beam spot incident on the corneal surface and/or on the fraction of the laser-beam energy incident on the corneal surface which is reflected away, is taken into account when generating the control program.

Abstract: In a control program, according to which a laser-beam spot is guided, while being controlled with respect to position and time, over a cornea to be corrected photorefractively, so as to ablate a predetermined ablation profile therefrom, the effect of the angle between the laser earn and the corneal surface on the energy density of the laser-beam spot incident on the corneal surface and/or on the fraction of the laser-beam energy incident on the corneal surface which is reflected away, is taken into account when generating the control program.

Abstract: In a method of generating a control program, according to which a laser-beam spot is guided, while being controlled with respect to position and time, over a cornea to be corrected photorefractively, so as to ablate a predetermined ablation profile therefrom, the effect of the angle between the laser beam and the corneal surface on the energy density of the laser-beam spot incident on the corneal surface and/or on the fraction of the laser-beam energy incident on the corneal surface which is reflected away, is taken into account when generating the control program.

Abstract: A device for photorefractive cornea surgery, in particular LASIK and PRK, of the eye for the correction of sight defects of a higher order provides for the following devices: an aberroscope (12, 14, 16, 22, 24, 28) for measuring the wave-front aberration of the entire optical system of the eye to be corrected in relation to a specific eye position, means (48) for deriving a photoablation profile from the measured wave-front aberration in such a way that a photoablation in accordance with the photoablation profile minimises the wave-front aberration, and a laser radiation source (30) and means (32, 38, 40, 48) for controlling the laser radiation in relation to the specific eye position in accordance with the photoablation profile.