Instrument for examining or machining a human eye

A method for examining or machining a human eye, comprising:

• acquiring, by an eye-tracker, eye movements;
• outputting a signal that is representative of the acquired eye movements;
• acquiring, by an interferometric image-acquisition device, a plurality of sectional images of the eye in a time-resolved manner;
• operating, by the interferometric image-acquisition device, on the basis of two-dimensional or three-dimensional optical coherence tomography, the sectional images comprising at least one sectional image of the eye that represents a section substantially along the margin of the iris of the eye, the sectional images comprising at least two mutually orthogonal sectional images of the eye, each of the at least two mutually orthogonal sectional images representing a section substantially along a visual axis or an optical axis of the eye to capture the apex of the eye;
• determining, by an evaluating module, the eye movements comprising movement of the apex from the sectional images;
• and
• orienting an ablation profile with respect to the apex in response to the movement of the apex.