A subjective optometry apparatus adapted to subjectively measure an eye refractive power of a subject eye (E), the subjective optometry apparatus comprising: a light projecting optical system configured to project a visual target luminous flux toward the subject eye; subjective measurement means adapted for subjectively measuring the eye refractive power of the subject eye (E), the subjective measurement means including a calibration optical system that is disposed in an optical path of the light projecting optical system and is configured to change an optical characteristic of the visual target luminous flux; objective measurement means adapted for objectively measuring an eye refractive power of the subject eye (E), the objective measurement means including a measurement optical system configured to emit measurement light to a fundus of the subject eye and receive the measurement light reflected from the subject eye ; controlling means adapted to control the objective measurement means to objectively measure the eye refractive power of the subject eye (E) to acquire a first eye refractive power, wherein the controlling means is further adapted to control the objective measurement means to objectively measure the eye refractive power of the subject eye (E) to acquire a second eye refractive power while the eye refractive power of the subject eye (E) is subjectively measured by the subjective measurement means , characterised by : acquisition means configured to acquire adjustment information indicating a change in the eye refractive power of the subject eye (E) during the subjective measurement based on the first eye refractive power and the second eye refractive power; and output means configured to output the adjustment information. a light projecting optical system configured to project a visual target luminous flux toward the subject eye; subjective measurement means adapted for subjectively measuring the eye refractive power of the subject eye (E), the subjective measurement means including a calibration optical system that is disposed in an optical path of the light projecting optical system and is configured to change an optical characteristic of the visual target luminous flux; objective measurement means adapted for objectively measuring an eye refractive power of the subject eye (E), the objective measurement means including a measurement optical system configured to emit measurement light to a fundus of the subject eye and receive the measurement light reflected from the subject eye ; controlling means adapted to control the objective measurement means to objectively measure the eye refractive power of the subject eye (E) to acquire a first eye refractive power, wherein the controlling means is further adapted to control the objective measurement means to objectively measure the eye refractive power of the subject eye (E) to acquire a second eye refractive power while the eye refractive power of the subject eye (E) is subjectively measured by the subjective measurement means , characterised by : acquisition means configured to acquire adjustment information indicating a change in the eye refractive power of the subject eye (E) during the subjective measurement based on the first eye refractive power and the second eye refractive power; and output means configured to output the adjustment information. acquisition means configured to acquire adjustment information indicating a change in the eye refractive power of the subject eye (E) during the subjective measurement based on the first eye refractive power and the second eye refractive power; and output means configured to output the adjustment information. <EOS>