Eye refractive power measurement apparatus

An eye refractive power measurement apparatus for measuring refractive power of an eye to be examined, comprises a measurement unit including a projecting optical system for projecting measurement light onto a fundus of the eye and a detecting optical system for receiving the reflected light of the measurement light reflected from the fundus, an arithmetic unit for obtaining the refractive power based on an output signal from the photodetector, a moving unit for moving the measurement unit relative to the eye, and a control unit for detecting an interfering part that interferes with the reflected light passing through the eye based on the output signal from the photodetector and for driving and controlling the moving unit based on the detected results.