PROBLEM TO BE SOLVED: To make it possible to easily and accurately acquire a plurality of OCT signals with respect to the same part.SOLUTION: An optical coherence tomography device comprises: control means for acquiring a first front image by means of a front observation optical system when acquiring a plurality of OCT signals in a first scanning region of a subject, and acquiring a second front image by means of the front observation optical system after acquiring the plurality of OCT signals in the first scanning region and after acquiring the first front image； and a determination means for determining quality of the plurality of OCT signals acquired in the first scanning region on the basis of a result of detection of a positional deviation between the first front image and the second front image, wherein the control means acquires each of a plurality of timewisely different OCT signals with respect to at least two scanning regions on the subject by means of an OCT optical system and, after acquiring a plurality of OCT signals in every scanning region, reacquiring a plurality of OCT signals in each scanning region whose plurality of OCT signals has been determined as poor by the determination means.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】 同一の部位に関して、複数のＯＣＴ信号を容易に精度よく取得することができる。【解決手段】 被検体上の第１走査領域において、複数のＯＣＴ信号の取得時に、正面観察光学系によって第１正面画像を取得し、第１走査領域における複数のＯＣＴ信号の取得以後であって、第１正面画像の取得の後に正面観察光学系によって第２正面画像を取得する制御手段と、第１正面画像と、第２正面画像と、の位置ずれの検出結果に基づいて、第１走査領域において取得された複数のＯＣＴ信号の良否を判定する判定手段と、を備え、制御手段は、ＯＣＴ光学系によって、被検体上における少なくとも２つ以上の走査領域に関して時間的に異なる複数のＯＣＴ信号をそれぞれ取得し、複数のＯＣＴ信号の取得が全走査領域で完了した後、判定手段によって複数のＯＣＴ信号が良好でないと判定された走査領域での複数のＯＣＴ信号を再取得する。【選択図】 図１
