Ophthalmological Patient Interface

An ophthalmological patient interface for application to an eye of a person, the ophthalmological patient interface comprising:

• a coupling portion configured to be arranged on an application head of an ophthalmological laser treatment system,
• an eye fixation portion configured to be arranged on the eye, wherein the eye fixation portion comprises a cornea contacting element, configured to contact at least partially the cornea of the eye, and a sclera contacting element, configured to contact at least partially the sclera of the eye, wherein the cornea contacting element and the sclera contacting element define a rotationally asymmetric contact surface configured to contact the eye, and
• a through opening, extending through the coupling portion and the eye fixation portion, wherein the through opening is configured to enable a treatment laser beam from the application head to pass through the ophthalmological patient interface to penetrate a target volume of tissue of the eye.