[project], which provides to be able to achieve, observes device by the ophthalmology of the new utilization method of the light Ke Xier elevation section image surfaces obtained. [solution] in ophthalmology observation device, optical system carries out OX. 3-D image forming portion 231 gradually forms the 3-D image for being detected eye according to the data gradually obtained by optical system by the way that the OX of the 3D region of tested eye is repeated. Section according to the 3-D image gradually obtained gradually forms elevation section image surface as forming portion 232. Display control section 2111 makes display unit 241 show the elevation section image surface gradually formed. The OX for the sectional position that control unit 2112 is specified by the elevation section image surface to display by operational means is measured, is executed with the OX shown than animation closeer sweep spacing. [selection figure] Fig. 3
