Eye surgery system

An eye surgery assistance method for assisting an eye surgery, the eye surgery assistance method comprising:

• providing an eye surgery system, which comprises
• an optical system including microscopy optics and an OCT device,
• wherein the microscopy optics comprise an objective lens and are configured to generate a light-optical image of an eye fundus, and wherein the OCT device is configured to scan the eye fundus using an OCT measurement beam passing through the objective lens and to generate an OCT image of the eye fundus;
• a controller;
• and
• a visualization system;
• wherein the controller comprises a data interface to receive a preoperative OCT image and is configured to control the visualization system to display a representation of the preoperative OCT image,
• wherein the controller is further configured to control the OCT device to record an intraoperative OCT image and to control the visualization system to display a representation of the recorded intraoperative OCT image,
• wherein the controller is further configured to adjust at least one property of a group of properties so that all conditions of a first group of conditions is fulfilled,
• the group of properties comprising a magnification of the representation of the intraoperative OCT image, a magnification of the representation of the preoperative OCT image, an orientation of the representation of the intraoperative OCT image and an orientation of the representation of the preoperative OCT image,
• the first group of conditions comprising:
• the magnification of the displayed representation of the intraoperative OCT image and the magnification of the displayed representation of the preoperative OCT image be equal;
• and
• the orientation of the displayed representation of the intraoperative OCT image and the orientation of the displayed representation of the preoperative OCT image be equal,
• wherein the microscopy optics further comprise a camera to detect the light-optical image of the eye fundus, and wherein the controller is further configured to control the camera to record the light-optical image and to control the visualization system to display a representation of the recorded light-optical image,
• wherein the controller is further configured to adjust the at least one property of the group of properties so that all conditions of a second group of conditions is fulfilled,
• the second group of conditions comprising:
• the magnification of the displayed representation of the intraoperative OCT image and the magnification of the displayed representation of the preoperative OCT image be equal to a magnification of the representation of the light-optical image displayed by the visualization system;
• and
• the orientation of the displayed representation of the intraoperative OCT image and the orientation of the displayed representation of the preoperative OCT image be equal to an orientation of the representation of the light-optical image displayed by the visualization system;
• receiving, using the data interface, a preoperative OCT image of an eye fundus,
• wherein, during the eye surgery, the method further comprises
• controlling, using the controller, the OCT device of the eye surgery system to record an intraoperative OCT image of the eye fundus;
• detecting, using the camera, a light-optical image of the eye fundus;
• adjusting, using the controller, at least one property of the group of properties so that all conditions of the first group of conditions and the second group of properties are fulfilled;
• and
• controlling, using the controller, the visualization system to display a representation of the preoperative OCT image, a representation of the intraoperative OCT image and a representation of the light-optical image, all adjusted to have the same magnification and orientation with respect to each other.