1. An eye detection installation comprising one or more light sources for emitting light in directions toward the head of a user, a detector for receiving light from the head of a user and to repeatedly capture pictures thereof, and an evaluation unit connected to the detector for determining the position and/or gaze direction of an eye, characterized in that the evaluation unit is arranged to determine, in a picture captured by the detector, an area in which an image of an eye or images of eyes is/are located, and after determining the area, to control the detector to forward to the evaluation unit information about successive or following pictures that only corresponds to the determined area of the image captured by the detector.