Ophthalmic device for treating an eye

Ophthalmic device for treating an eye, comprising:

• a laser source configured to generate a pulsed laser beam;
• an application head with a focusing optic and a patient interface, wherein the focusing optic has an optical axis and is configured to focus the pulsed laser beam in the eye and wherein the patient interface is configured to affix the application head on the eye;
• a circuit which is configured to store a three-dimensional treatment model of a three-dimensional treatment pattern to be processed in the eye and a reference point for positioning the three-dimensional treatment model in the eye;
• a scanner system which is configured to direct the pulsed laser beam, in accordance with the three-dimensional treatment model, onto treatment targets of the three-dimensional treatment pattern to be processed in the eye;
• and
• an interferometric measurement system which is configured to optically capture three-dimensional structures of the eye over a depth range extending in the direction of the optical axis of the focusing optic when the application head is affixed to the eye;
• wherein the circuit is further configured:
• to determine reference structures of the eye on the basis of the three-dimensional structures optically captured by the interferometric measurement system when the application head is affixed to the eye, which reference structures are arranged in essentially ring-shaped fashion about a center axis of the anterior chamber of the eye,
• to determine, using the reference structures, a displaced reference point when the application head is affixed to the eye, and
• to position the three-dimensional treatment model with respect to the displaced reference point when the application head is affixed to the eye, and
• to control the scanner system to direct the pulsed laser beam, when the application head is affixed to the eye, in accordance with the three-dimensional treatment model positioned with respect to the displaced reference point, onto the treatment targets of the three-dimensional treatment pattern to be processed in the eye.