UV-laser-based system for refractive error correction, and contact interface

A UV laser-based system for vision correction (UVL-LVC system) which comprises a base unit and an application arm with, at a distal end thereof, an application part with a laser exit aperture, the UV laser-based system comprising:

• a UV laser source which emits continuous or pulsed laser radiation;
• a scanning system that laterally scans the laser radiation in x- and y-directions, or in the x- and y-directions and also perpendicular thereto in a z-direction;
• a control unit;
• an imaging optical unit that focuses the laser radiation on a cornea of a patient's eye;
• a contact interface adapter that is arranged on the application part, an axis of said contact interface adapter running coaxially with an optical axis of the application part at the laser exit aperture of the application part;
• the contact interface adapter being configured to accommodate a contact interface such that the contact interface is rotatable and affixable in relation to the contact interface adapter;
• wherein the imaging optical unit further comprises a microscope optical unit that focuses the laser radiation on the cornea of the patient's eye, an optical opening of which is configured such that an acceptance angle xxMax for reflections detectable by the UVL-LVC system is selected from a group consisting of greater than 15°, greater than 25°, and greater than or equal to 37°;
• and
• further wherein the optical opening is selected from a group consisting of greater than 50 mm, and greater than or equal to 60 mm, and has a working distance selected from a group consisting of less than 50 mm, and less than or equal to 40 mm.