A subjective optomater that is capable of measuring accommodation ability of an eye while reducing the influence of accommodative convergence is provided. A subjective optometer includes: a visual target that is presented to an eye through a measuring optical axis a measuring optical system that includes a spherical lens capable of changing spherical power on the measuring optical axis a spherical power changer that changes the spherical power of the spherical lens and an optical axis deflector that deflects the measuring optical axis so as to align the measuring optical axis with a visual axis of the eye, wherein accommodation ability is measured based on the spherical power of the spherical lens in a state in which the measuring optical axis is deflected by the optical axis deflector.
