PROBLEM TO BE SOLVED: To provide an optical interference tomography technology which enables easy photographing of a tomogram suitable for follow-up examination.SOLUTION: An optical interference tomography device includes an acquisition part at which the light from a light source is split in measurement light and reference light, the measurement light is radiated to a subject's eye through a measurement optical path, the reference light is guided to a reference optical path, acquiring a tomographic image of subject's eye based on the interference light, in which the reference light and the light returning from the subject 's eye interfere with each other, a reading part for reading, from a data base, a tomographic image at a portion identical with a portion of subject's eye in the acquired tomographic image, and a control part which makes adjustment so as to reduce a difference between the brightness of the acquired tomographic image and the brightness of the read tomographic image.
