Technique for controlling a corneal ablation laser

A device for controlling a corneal ablation laser, the device comprising:

• the corneal ablation laser;
• a display adapted to receive an adjustment parameter;
• an eye tracker comprising a camera and a first determination unit adapted to:
• track a motion of an eye;
• and
• determine a first point on a corneal surface of the eye, the first point comprising a pupil center;
• a corneal topography diagnostic device comprising a measurement unit and a second determination unit adapted to:
• measure corneal topography over the corneal surface;
• and
• determine a second point on the corneal surface that is different from the first point, the second point comprising a corneal apex or a corneal vertex of the corneal surface;
• a computer adapted to:
• compute an adjustment vector pointing from the first point comprising the pupil center to the second point comprising the corneal apex or the corneal vertex;
• scale the adjustment vector according to the adjustment parameter to determine a third point on a line between the first point and the second point according to the adjustment parameter;
• and
• generate a control program that centers an ablation profile on the third point;
• and
• the computer comprising a laser controller adapted to control the corneal ablation laser according to the control program.