| 摘要 |
PROBLEM TO BE SOLVED: To provide a subjective optometer capable of measuring an accommodation ability of a subject's eye, with an influence of accommodation convergence reduced.SOLUTION: The subjective optometer comprises: a measurement optical system including a target to be presented to a subject's eye on a measurement optical axis, and a spherical lens, the spherical diopter of which is changeable in the measurement optical axis; a spherical diopter change unit that changes the spherical diopter of the spherical lens; and an optical axis deflection unit that deflects the measurement optical axis so as to match a visual axis of the subject's eye. The accommodation ability is measured based on the spherical diopter of the spherical lens in a state where the measurement optical axis is deflected by the optical axis deflection unit. |
