Navigating attachment for optical devices in medicine, and method

A method for presenting image data, in which the position of an optical implement is captured and positional information is obtained thus and, with the aid of the positional information, image data are determined and displayed or processed further,

• characterized in that the image data to be displayed are at least in part based on virtual image data, which are not captured directly by the optical implement, which image data represent an object or body part situated in a field of view of the optical implement, wherein, within the scope of the method:
• real image data are recorded by means of the optical implement,
• the position and/or alignment of the optical implement is captured simultaneously and positional information is derived therefrom,
• the real image data recorded by the optical implement are processed taking into account the positional information to form virtual image data and/or processed together with the virtual image data to form image data to be displayed
• in which the optical implement has a viewing direction and image data to be presented are determined from the virtual image data taking into account the viewing direction of the optical implement.