Provided is an optical coherence tomography apparatus expected to facilitate observation of reliable analyzed image data to improve inspection efficiency. The tomography apparatus includes: an acquisition unit configured to acquire a tomographic image of an object to be inspected； an identifying unit configured to identify an image display area corresponding to a part to be inspected of the object to be inspected in the tomographic image； a determination unit configured to determine a significant area and a non-significant area based on a positional relationship between a periphery of the image display area and the tomographic image； and a display control unit configured to control a display unit to display image data based on the tomographic image and data concerning the non-significant area together in a designated display form.
