A vision exercising apparatus including a visual display device (1) a locating means (5) for locating the head of a user at a position to provide a substantially known relationship between the visual display device (1) and the field of view of the user display position control means for actuating the visual display device (1) to display a predetermined pattern at a known display position which corresponds to a specific viewing area of the field of view of the user user actuable response means (17) to enable a user response to be provided further control means to control the display position control means to repeatedly display the predetermined pattern at the known display condition and means to collate user response and to evaluate the statistical significance of the user response for that display position. A predetermined pattern can thus be displayed in the field of view of a user that requires exercising.
