An eye refractive power measurement apparatus capable of accurate
measurement while preventing noise light from entering a photodetector
even a measurement target is moved in an optical-axis direction, has a
measurement optical system including an optical axis, a hole mirror
having an aperture and a reflective surface, a concave mirror, an optical
system projecting measurement light from the target onto a fundus via the
aperture and the concave mirror, and an optical system having an
image-forming member and the photodetector photo-receiving the light
reflected from the fundus via the concave mirror, the reflective surface
and the image-forming member, a unit moving the target and the
image-forming member or photodetector in the direction to have a
positional relationship optically conjugate with the fundus, and a
calculation part obtaining eye refractive power based on a travel
position or amount of the image-forming member or photodetector and an
output from the photodetector.