Patient interface for ophthalmologic diagnostic and interventional procedures

A method for ophthalmic intervention on an eye of a patient having temporary geometric markers thereon indicative of the orientation of an axis of the patient's eye, comprising:

• a. imaging three or more registration fiducials in reference to the temporary geometric markers on the eye of the patient, the registration fiducials being formed on an inner annulus of a patient interface housing within a field of view of an imaging device capable of 3-dimensional imaging of the registration fiducials;
• d. imaging the three or more registration fiducials formed on the inner annulus of the patient interface housing within the field of view of the imaging device such that it may be imaged by the imaging device, and
• c. processing image data generated via the imaging device for the three more registration fiducials and the temporary geometric markers on the eye of the patient so as to determine a position, a pitch, a roll and a yaw of the patient interface device relative to the geometric markers.