This cross section image capture device is provided with the following: a cross section image capture means for scanning measurement light onto the ocular fundus of an eye under test E and capturing a cross section of the eye under test ocular fundus and an image processing means for compressing the captured image of the cross section in the scanning direction and generating a new cross section image. The cross section image capture means captures a cross section of the ocular fundus of the eye under test by scanning in a second scan interval P which is narrower than a first scan interval P. The image processing means generates a new cross section image B12 by compressing in the scanning direction a cross section image B11 captured in the second scan interval P. The scanning direction measured width of the new cross section image B12 is the width of an image corresponding to the scanning direction measured width of a cross section image Bn (n=1 10) obtained by scanning in the first scanning interval P.