light projection lens 22 are disposed to the side of the cornea ec and a light receiving lens 23 and a sensor array 24 as plural sensor elements comprising a number of light receiving elements such as ccd 39 s are disposed on the reflection side thereof the index light source 21 and the sensor array 24 are installed at the focus positions respectively of the light projection lens 22 and the light receiving lens 23 a chamber 25 is disposed in front of the eye e to be examined and light transmitting window portions 26 and 27 are provided before and behind the chamber 25 and in the central portion of the forward window portion 26 a nozzle 28 for air stream injection is installed toward the cornea ec of the eye e to be examined a pressure sensor 29 is installed in the chamber 25 and a lens 30 an obliquely disposed half mirror 31 and a tv camera 32 are arranged in succession on the eye axis behind the chamber 25 a light source 33 for alignment and a half mirror 34 are provided in the direction of reflection of the half mirror 31 a position sensor 35 for alignment is installed in the direction of reflection of the half mirror 34 and the alignment signal of the position sensor 35 is connected to.