PROBLEM TO BE SOLVED: To allow an examiner to readily obtain a tomographic image of an examined object having an intended size when the examiner gives an instruction for the size of the imaging range of the tomographic image.SOLUTION: When any one of a plurality of imaging portions on an examination object (for example, a portion of the anterior eye part of an examined eye or a portion of the eyeground of an examined eye) is selected, an optical tomographic imaging device can control measurement-light light-path-length change means for changing the light path length of a measurement light according to the size of the imaging range of a tomographic image corresponding to the imaging portion selected.COPYRIGHT: (C)2014,JPO&INPIT【課題】 検者が、被検査物の断層画像の撮像範囲の大きさを指示すれば、意図した大きさの断層画像を容易に取得できること。【解決手段】 光断層撮像装置は、被検査物における複数の撮影部位(例えば、被検眼の前眼部の部位や被検眼の眼底の部位)のいずれかが選択され、該選択された撮影部位に対応する前記断層画像の撮像範囲の大きさに応じて、測定光の光路長を変更する測定光光路長変更手段を制御することができる。【選択図】 図9
