PROBLEM TO BE SOLVED: To provide a mechanism that enables a proper image of a subjects eye to be taken by stabilizing visual fixation of the subjects eye.SOLUTION: A fixation target 810 for promoting fixation of a subjects eye is projected, and OCT measurement light is scanned for an eyeground surface 800 of the subjects eye. In this case, control for shifting a projection position 822 of relaxative light for diverting the subjects attention from the OCT measurement light to a position different from a position to be subjected to OCT measurement light irradiation is performed depending on a shift of a scanning position 821 of the OCT measurement light, associated with scanning of the OCT measurement light irradiation, and a projection position of the fixation target 810. The relaxative light is light that is not used for image generation.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2018,JPO&INPIT【課題】被検眼の固視を安定させて、良好な被検眼の画像を撮影することが可能な仕組みを提供する。【解決手段】被検眼の固視を促す固視標810を投影し、被検眼の眼底面800に対してOCT測定光を走査する際に、当該OCT測定光の走査に伴うOCT測定光の走査位置821の移動と固視標810の投影位置とに応じて、OCT測定光が照射されている位置とは異なる位置に、画像の生成に用いない光であってOCT測定光から被検者が注意をそらすための気晴らし光の投影位置822を移動する制御を行う。【選択図】図8
