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Pub. No.:    WO/2018/198474    International Application No.:    PCT/JP2018/004192
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Thu Feb 08 00:59:59 CET 2018
IPC: A61B 3/10
Inventors: ONJI Hirokazu
恩地 裕和
Provided is an ophthalmological device with which it is possible to clearly detect the three-dimensional distribution of blood vessels in an eye. In an ophthalmological device of an exemplary embodiment, a storage unit stores a three-dimensional data set acquired by applying optical coherence tomography to a subject's eye. A first blood vessel region extraction unit extracts a blood vessel region from the three-dimensional data set. A first layer region specification unit applies segmentation to the three-dimensional data set and specifies a plurality of layer regions. A first common region specification unit specifies common regions between each of the layer regions and the blood vessel region. A first en-face image formation unit forms en face images on the basis of each of the common regions. A first color coding unit assigns different color information to the plurality of en face images formed by the first en-face image formation unit. A first image compositing unit forms a composite en face image by compositing at least two of the plurality of en face images whereto the color information is assigned.