An ophthalmological apparatus includes a measurement unit configured to analyze a tomographic image and measure a layer thickness of a predetermined tissue of an eye being examined, a position identifying unit configured to identify positions of a plurality of parts of the eye being examined, a storage unit configured to store statistical data of layer thicknesses of the predetermined tissue of a plurality of eyes that have been examined, a position alignment unit configured to perform position alignment on an image of the eye being examined and an image represented by the statistical data, by using information regarding the positions of the plurality of parts, and a comparison unit configured to compare the layer thickness of the predetermined tissue of the eye being examined with the statistical data of the layer thicknesses of the predetermined tissue of the plurality of eyes that have been examined.
