PROBLEM TO BE SOLVED: To improve accuracy of visual line detection.SOLUTION: A diagnosis support apparatus includes: a display unit； an image pickup unit for capturing an image of a subject； a position detection unit that detects a position of an eye of the subject from the image captured by the image pickup unit； a distance detection unit that detects a distance from the image pickup unit to the position of the subject's eye； and an output control unit that causes the display unit to display, within a reference image representing a range of a reference area included in an imaging area of the image pickup unit, an image representing the position of the subject's eye corresponding to the position of the eye detected by the position detection unit while changing a display mode according to the distance detected by the distance detection unit and also causes the display unit to display a moving image within the referent image.
