A method for detecting the viewing direction of a person having a visual aid includes providing at least one optical property of a visual aid of the person, observing at least one eye of the person, and correcting data ascertained from the observation based on the at least one optical property of the visual aid. An apparatus designed to detect the viewing direction of a person includes an observation device set up to observe at least one eye of the person, a data record containing at least one optical property of a visual aid of the person, and a computing device equipped to correct the observation based on the data record.
