PROBLEM TO BE SOLVED: To reduce at least one or more of problems of a prior art.SOLUTION: An ophthalmologic apparatus for acquiring depth information of an eye to be examined includes division means for dividing light from a light source into measurement light and reference light, a light guide optical system including an objective lens to guide the measurement light to the eye to be examined, refractive power varying means capable of changing refractive power in a stationary state with respect to an optic axis of the optical system, control means for controlling the refractive power varying means to change a condensing position of the measurement light, and detection means for detecting interference light between the measurement light guided to the eye to be examined through the light guide optical system and the reference light and for detecting each interference light corresponding to the control of the control means.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2016,JPO&INPIT