When displaying visual targets on a planar display element and performing vision examinations, the size of the visual target visible to the subject changes according to the position at which the visual target is displayed. This vision examination device 1 comprises: a planar display element 12 that displays visual targets to a subject of a vision examination; and a display optical system 11 (19, 20, 21) provided upon an optical axis 18 between an eyeball position at which an eyeball 8 of the subject is arranged and a display screen 12a of the planar display element 12. The display optical system 11 comprises an f-¸ optical system having a proportional relationship between an image height on the display screen 12a of the planar display element 12 and the angle of incidence ¸ for the main light rays when the subject views the visual target through the display optical system 11 from the eyeball position.