摘要:
The invention relates to a method for producing a control program according to which a laser beam spot is guided in a locally controlled and time-controlled manner over a cornea to be photorefractively corrected in order to ablate a predetermined ablation profile on the cornea. During the production of the control program, the influence of the angle formed between the laser beam and the surface of the cornea on the energy density of the laser beam spot impinging upon the surface of the cornea and/or on the reflected-away portion of the laser beam energy impinging upon the surface of the cornea is taken into consideration.
摘要:
The invention relates to a device for photorefractive cornea surgery of the eye, notably laser in situ keratomileusis and photorefractive keratectomy, for the correction of higher-order visual disorders. Said device comprises the following: an aberroscope (12, 14, 16, 22, 24, 28) for measuring wavefront aberration of the complete optical system of the eye to be corrected, in relation to a defined ocular position; means (48) for deriving a photoablation profile from the measured wavefront aberrations in such a way that photoablation carried out on the basis of said photoablation profile minimizes wavefront aberration; and a laser radiation source (30) and means (32, 38, 40, 48) for controlling the laser radiation in relation to the defined ocular position, in accordance with the photoablation profile.
摘要:
The invention relates to a method for producing a control program according to which a laser beam spot is guided in a locally controlled and time-controlled manner over a cornea to be photorefractively corrected in order to ablate a predetermined ablation profile on the cornea. During the production of the control program, the influence of the angle formed between the laser beam and the surface of the cornea on the energy density of the laser beam spot impinging upon the surface of the cornea and/or on the reflected-away portion of the laser beam energy impinging upon the surface of the cornea is taken into consideration.