change visibility of the fixation point on which the eye e is fixated disposed on an optical axis l 3 which is made coaxial with the optical axis l 2 by the half mirror 27 are a lens 33 a light source 34 which emits near infrared light light emitted from the light source 34 is made generally parallel light by the lens 33 and enters into the cornea ec from the front via the half mirrors 26 and 27 and the beam splitter 25 thereby forming a target image on the cornea ec by the light source 34 the light of target image formed on the cornea ec enters into a ccd camera 38 via the beam slitter 25 the half mirror 26 and a lens 35 disposed on an optical axis l 4 which is made coaxial with the optical axis l 2 by the half mirror 26 are the lens 35 and the ccd camera 38 serving as a photographic element output from the camera 38 is inputted into the monitor 39 directly or via the control part 50 an anterior eye segment of the eye e photographed by the camera 38 is displayed on the monitor 39 also an image of the placido ring and a target image by the light source 34 are conducted image processing by the control part 50 to obtain the corneal shape and the alignment condition in the up and down and the right and left directions x and y directions next description is given to operations of the apparatus first description is given to eye refractive power measurement an eye refractive measurement mode is selected by using a mode change over.