Method for acquiring data relating to glare sensitivity of a test person, characterized in that the method comprises the following steps: a) providing a test device having at least the following elements: a1) a presentation surface on which the optotypes in variable positions and at least one stationary gaze fixation marking can be displayed; a2) at least one glare source arranged laterally offset to a gaze direction of the test person, such that it can be used to generate a light beam that dazzles the test person when the gaze direction extends between a predetermined location of the test person and the gaze fixation marking; a3) an input device, by means of which responses of the test person can be detected and recorded; and a4) a gaze direction detection device, by means of which a gaze direction of the test person can be detected; the method comprising the following steps: b) placing the test person such that the gaze fixation marking is in a central region of the field of view of the test person; c) instructing the test person to direct their gaze to the gaze fixation marking and not to remove it from the gaze fixation marking; d) instructing the test person to show a particular response when they perceive a optotype on the presentation surface; e) switching on the glare source; f) when the glare source is switched on, displaying a optotype on the presentation surface in different positions of a predetermined trajectory, g) continuously monitoring the gaze direction of the test person with the gaze direction detection device; h) monitoring the test person to indicate the particular response; i) terminating the display of the optotype when it is detected by means of the gaze direction detection device that the gaze of the test person has been removed from the gaze fixation marking between the display of the optotype and the response of the test person triggered thereby; and j) acquiring and storing data which mark the position of the optotype at the moment in which the test person shows the reaction only when the gaze of the test person has not been removed from the gaze fixation marking between the display of the optotype and the response of the test person triggered thereby. a) providing a test device having at least the following elements: a1) a presentation surface on which the optotypes in variable positions and at least one stationary gaze fixation marking can be displayed; a2) at least one glare source arranged laterally offset to a gaze direction of the test person, such that it can be used to generate a light beam that dazzles the test person when the gaze direction extends between a predetermined location of the test person and the gaze fixation marking; a3) an input device, by means of which responses of the test person can be detected and recorded; and a4) a gaze direction detection device, by means of which a gaze direction of the test person can be detected; a1) a presentation surface on which the optotypes in variable positions and at least one stationary gaze fixation marking can be displayed; a2) at least one glare source arranged laterally offset to a gaze direction of the test person, such that it can be used to generate a light beam that dazzles the test person when the gaze direction extends between a predetermined location of the test person and the gaze fixation marking; a3) an input device, by means of which responses of the test person can be detected and recorded; and a4) a gaze direction detection device, by means of which a gaze direction of the test person can be detected; b) placing the test person such that the gaze fixation marking is in a central region of the field of view of the test person; c) instructing the test person to direct their gaze to the gaze fixation marking and not to remove it from the gaze fixation marking; d) instructing the test person to show a particular response when they perceive a optotype on the presentation surface; e) switching on the glare source; f) when the glare source is switched on, displaying a optotype on the presentation surface in different positions of a predetermined trajectory, g) continuously monitoring the gaze direction of the test person with the gaze direction detection device; h) monitoring the test person to indicate the particular response; i) terminating the display of the optotype when it is detected by means of the gaze direction detection device that the gaze of the test person has been removed from the gaze fixation marking between the display of the optotype and the response of the test person triggered thereby; and j) acquiring and storing data which mark the position of the optotype at the moment in which the test person shows the reaction only when the gaze of the test person has not been removed from the gaze fixation marking between the display of the optotype and the response of the test person triggered thereby.