1. An image display method comprising: acquiring a first image of a fundus within a first area of an eye to be inspected; acquiring interference signal sets corresponding to a plurality of frames, which are acquired with an intention to acquire the same cross section, for a plurality of different cross sections; generating, based on the interference signal sets corresponding to the plurality of frames, a motion contrast image of the fundus within a second area included in the first area; and superimposing, for display, information acquired from a portion of the motion contrast image of the fundus onto a corresponding position of the first image of the fundus.