Method for aligning a system, and system for detecting position data of at least one element in the front region of an eye

In a system for detecting position data of at least one element in a front region of an eye, the system including:

• at least one first system component designed to continuously detect position changes of a vertex of a cornea of the eye;
• a second system component that directs electromagnetic radiation at topographical structures of the cornea to be ascertained or to be modified;
• and a control unit including a processor and a memory;
• wherein an alignment of the first system component with respect to an alignment of the second system component being defined, and the second system component being continuously guided to a respective target position thereof by the control unit based on the position changes detected by the first system component, wherein the improvement comprises:
• wherein light sources, which illuminate the cornea, are symmetrically disposed around a main axis of the system, so that a pattern of reflection points is created on the cornea, the processor determining a current position of a vertex as the center of the reflection points;
• wherein the second system component records one- or multi-dimensional deep sectional images;
• wherein axial position changes are determined from differences between deep sectional images recorded at a same position in a geometry of the eye on a frontal plane;
• and
• wherein the system sequentially obtains geometric information of the front region of the eye during a time interval by way of the deep sectional images to gather information regarding alignment of the eye.