To make it possible to detect the position of an eye to be examined by two-dimensional array sensors by providing the above device with an image pickup optical system which forms the image of the anterior segment of the eye to be examined at an image pickup means and an image pickup optical system which receives the cornea reflected image at the image pickup means and obtaining the position signal of the ophthalmoscopic and optical system from the position relation of the plural cornea reflected image of the spot light source.

An IR optical ring light source 1 for measuring the cornea curvature is arranged on the circumference around an optical path O1 and IR light sources 2 for illuminating the anterior segment of the eye are arranged in vertical and lateral four positions on the outer side thereof. Also, a dichroic mirror 3, an objective lens 4, a perforated mirror 5, the IR LED light sources for measuring refraction, etc., are successively arrayed on the optical path O1 behind these light sources 1 and 2. Also, the optical paths O6a and O6b of the cornea reflected optical system for position detection are respectively provided thereon with lenses 24 and 24b and mirrors 25a and 25b. The reflected light from the cornea C is introduced through the optical paths O7a and O7b and O8a and O8b to the image pickup system 17. Then, the positioning of the eye to be examined, etc., is executed by viewing the output image of the image pickup system 17 displayed on the display monitor 23.