OPTOMETRIC DEVICE

An optometry apparatus that examines the optical property of an examinee's eye includes: a light projecting optical system configured to project target light flux toward the examinee's eye; a corrective optical system placed in an optical path of the light projecting optical system, the corrective optical system being configured to change the optical property of the target light flux; an information acquisition means configured to acquire information on diopter power of a refraction corrective device worn by the examinee; and a control means configured to control the corrective optical system and perform an over-refraction on the examinee's eye during wear of the refraction corrective device, in which the control means calculates a prescription value of a new refraction corrective device on the basis of a refractive error acquired by a subjective examination that is performed for the over-refraction, and the diopter power information. As a result, it is possible to calculate a more correct spectacle prescription value for an examinee who wears a refraction corrective device with wrong diopter power.