PROBLEM TO BE SOLVED: To provide a subjective type eye refractivity measuring device capable of smoothly measuring eye refractivity without placing a correction optical system in front of a subject.SOLUTION: A subjective type eye refractivity measuring device comprises: a light-emitting optical system that emits a target light beam for forming an inspection target on a fundus of a subjects eye, to the subjects eye a correction optical system that is arranged in a light path of the light-emitting optical system and can change eye refractivity and a relay optical system that relays the light beam after passing through the correction optical system and is arranged so as to form an image of the correction optical system in front of the subjects eye, and the device measures eye refractivity of the subjects eye by changing the refractivity of the correction optical system. The device also comprises: displacement detection means for detecting displacement of the image of the correction optical system with respect to the subjects eye and correction means for optically correcting a position for forming the image, on the basis of a detection result detected by the displacement detection means, so as to form the image of the correction optical system in front of the subjects eye.
