Patent ID: 8246610
Filing Date: 2012-08-21
Classification: A61B,A61F

Abstract:
1. Apparatus for ophthalmological, refractive laser surgery, comprising: a laser-beam source; a beam guidance mechanism configured to control guidance of the laser beam, emitted by the laser-beam source, over an eye to be treated; a camera for taking an image of the pupil of the eye; a program-controlled computer, connected to the camera, for controlling the beam guidance mechanism in accordance with a treatment profile, the computer being set up to ascertain during the treatment of the eye, on the basis of the image data representative of the pupil supplied by the camera, the position of a specified point on the cornea of the eye and to align the treatment profile relative to the thus ascertained position of the corneal point; wherein a measuring device, supplying its measurement data to the computer, for measuring a depth dimension of the eye to be treated, which depth dimension is representative of the depth of the anterior chamber and the thickness of the cornea, the computer being set up to ascertain the position of the specified corneal point, taking account of the measured depth dimension, wherein the position of the specified corneal point is ascertained by determining a displacement of a center of the pupil relative to a reference position and calculating a corresponding displacement of the specified corneal point based upon the displacement of the center of the pupil relative to the reference position.