| 摘要 |
PROBLEM TO BE SOLVED: To sufficiently perform relating of an ocular characteristic measuring system, an operating system and ocular coordinate origin and coordinate axes. SOLUTION: A measuring unit 111 measures ocular optical characteristics based on a first photodetection signal from a first photodetector 23, and measures a cornea topography based on a second photodetection signal from a second photodetector 35. The unit 111 also calculates an ablation amount based on an aberration result, and outputs its calculated result to the operating system via an I/O unit 115. A coordinate setter 112 decides directions of a coordinate origin and coordinate axes based on a second photodetection signal including a feature signal of an eye before optometry. The setter 112 obtains a rotation or a movement of each of the origin and the axes based on any one of the feature signals of the eye before the optometry, and relates the measured data and the coordinate axes. A featured part includes at least one of a pupil position, a pupil center, a cornea center, an iris position, a pattern of the iris, a shape of the pupil and a limbus shape. |
