| 摘要 |
A fixed target position which is synthesized and outputted is shifted to a correct position of a display device in accordance with an image pickup magnification of an eye to be examined. A state in which the imaging lens is moved to change an imaging magnification of an eye fundus image Pr of an eye to be examined E is indicated. If an image is magnified, the state wherein a mark M 1 and a substantial center of a macular portion Po of the eye to be examined coincide with each other may change to the state wherein the macular portion Po is deviated from the mark M 1 . In such case, with respect to a shifting distance of the mark M 1 required at this time, in the case where the position of the mark M 1 is located at a distance of "a" from a center, when an image pickup magnification is n times, it is n.a from the center.
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