An ophthalmologic apparatus includes an imaging unit for imaging the fundus image of a subjects eye, a displacement acquisition unit for acquiring the displacement of an imaging position by the imaging unit between fundus images captured by the imaging unit, and a display control unit for displaying the fundus image captured by the imaging unit and a region of interest on the display unit so that the region of interest is positioned at a predetermined position of the fundus image based on the displacement acquired by the displacement acquisition unit and displaying the region of interest on the display unit by changing a size of the region of interest according to an range where the fundus image is captured.
