Method and arrangement for eye pressure measurements

An intraocular pressure measurement arrangement for measuring pressure of an eye of a patient, wherein the arrangement comprises:

• a contactless nonlinear wave generator that is locatable at a first distance from the eye, the nonlinear wave generator being configured to generate, when being the first non-zero distance away from the eye, a nonlinear acoustic wave or a nonlinear mechanical wave at an output of the contactless nonlinear wave generator, the generated nonlinear acoustic wave or the nonlinear mechanical wave coupling to the eye through air and then generating at least one surface wave to the eye, wherein the nonlinear acoustic wave or the nonlinear mechanical wave is a transient or shock wave;
• a contactless wave detector that is locatable at a detection distance from the eye, the wave detector being configured to detect the generated at least one surface wave from the detection distance from the eye, the detected at least one surface wave containing surface wave information;
• and
• an intraocular pressure measurement unit comprising a processor operatively connected to an output of the wave detector to receive the detected at least one surface wave containing the surface wave information and to extract surface wave information, the intraocular pressure measurement unit configured to determine pressure information of the eye based on said surface wave information and provide the determined pressure information of the eye as an output of the intraocular pressure measurement arrangement.