A method for presenting image data, in which an optical implement captures the position and positional information is obtained thus and, with the aid of the positional information, image data are determined and displayed or processed further. The image data to be displayed are at least in part based on virtual image data, not real image data captured directly by the optical implement. These virtual image data represent an object or body part situated in the field of view of the optical implement. 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.