A device for calibrating an eye tracker, the device comprising: an eye model comprising an eye body having: a sclera simulation which is made of a bright plastic material, the plastic material containing a polyvinyl chloride at least as the main component, the sclera simulation forming an annular surface in accordance with the shape of a spherical or ellipsoidal surface; a pattern which contrasts in color with the sclera simulation, the pattern simulating an eye pupil and an iris structure, the eye body having a first flattened area on which the pattern, is situated; and a second flattened area on the side of the annular surface opposite from the pattern, the region of the second flattened area provided with a threaded hole; an eye tracker comprising an infrared camera; a positioning device configured to: fasten the eye model at the threaded hole; and mechanically adjust the position and orientation of the eye model relative to the infrared camera while images of the eye model are recorded; and provide a simulation of a rotational movement of the eye about an optical axis thereof, rotational movement of the eye about spatial axes perpendicular thereto, and translational movement of the eye along and perpendicular to the optical axis, by adjustment of the position and orientation of the eye model relative to the eye tracker; the eye tracker configured to track movement of the eye model, the movement of the eye model being detected and quantified during the movement thereof by repeated infrared image recording and processing by means of the eye tracker. an eye model comprising an eye body having: a sclera simulation which is made of a bright plastic material, the plastic material containing a polyvinyl chloride at least as the main component, the sclera simulation forming an annular surface in accordance with the shape of a spherical or ellipsoidal surface; a pattern which contrasts in color with the sclera simulation, the pattern simulating an eye pupil and an iris structure, the eye body having a first flattened area on which the pattern, is situated; and a second flattened area on the side of the annular surface opposite from the pattern, the region of the second flattened area provided with a threaded hole; a sclera simulation which is made of a bright plastic material, the plastic material containing a polyvinyl chloride at least as the main component, the sclera simulation forming an annular surface in accordance with the shape of a spherical or ellipsoidal surface; a pattern which contrasts in color with the sclera simulation, the pattern simulating an eye pupil and an iris structure, the eye body having a first flattened area on which the pattern, is situated; and a second flattened area on the side of the annular surface opposite from the pattern, the region of the second flattened area provided with a threaded hole; an eye tracker comprising an infrared camera; a positioning device configured to: fasten the eye model at the threaded hole; and mechanically adjust the position and orientation of the eye model relative to the infrared camera while images of the eye model are recorded; and provide a simulation of a rotational movement of the eye about an optical axis thereof, rotational movement of the eye about spatial axes perpendicular thereto, and translational movement of the eye along and perpendicular to the optical axis, by adjustment of the position and orientation of the eye model relative to the eye tracker; the eye tracker configured to track movement of the eye model, the movement of the eye model being detected and quantified during the movement thereof by repeated infrared image recording and processing by means of the eye tracker. fasten the eye model at the threaded hole; and mechanically adjust the position and orientation of the eye model relative to the infrared camera while images of the eye model are recorded; and provide a simulation of a rotational movement of the eye about an optical axis thereof, rotational movement of the eye about spatial axes perpendicular thereto, and translational movement of the eye along and perpendicular to the optical axis, by adjustment of the position and orientation of the eye model relative to the eye tracker; the eye tracker configured to track movement of the eye model, the movement of the eye model being detected and quantified during the movement thereof by repeated infrared image recording and processing by means of the eye tracker.