A unit for obtaining and displaying fundus image is comprised of a memory that stores a plurality of fundus images wherein a positional relation between an optical aixs of an eye ball to be examined and an optical axis of an objective is different, an image playback portion for producing a three-dimensional pseudo image by repeatedly displaying a plurality of fundus images on a display in order for a display time set on each fundus image, a CUP contour position designating means for designating a CUP contour position on the three-dimensional pseudo image, means for specifying the CUP contour position designated on the three dimensional pseudo image based upon a specific fundus image, and means for computing CUP contour based upon the specified CUP contour CD position and means for displaying the computed CUP contour.
