Abstract: An apparatus for observing and photographing a corneal endothelium includes an illumination optical system 28 for projecting each illumination light emitted by a light source 30 for observation and a light source 32 for photography onto a cornea C of a subject's eye E at an angle, an observing and photographing optical system 29 for receiving scattered light reflected by the cornea C with the endothelial layer and observing and photographing it, and an optical system 1 for observing the anterior segment of the eye E. The observing and photographing optical system 29 is provided with a sensor 47 for detecting an image of the endothelium in focus.

Abstract: An apparatus for photographing an endothelium of a cornea comprising an apparatus optical system including an anterior portion observing optical system for observing the anterior portion of an eye to be tested, an illumination optical system for illuminating the cornea of the eye, and an observing or photographing optical system for observing or photographing the endothelium of the cornea by receiving the light reflected on the endothelium of the cornea which is illuminated by the illumination optical system, the apparatus optical system being provided with a fixation mark light projecting system capable of changing a position where a fixation mark is presented, in order to change a direction in which the eye is fixedly gazed.

Abstract: The present invention relates to an ophthalmological instrument capable of measuring the intraocular pressure of an eye to be tested in an noncontact manner and capable of measuring the radius of curvature of the cornea of the eye, provide a single ophthalmological instrument capable of measuring both the intraocular pressure and the corneal configuration. The instrument includes a noncontact type intraocular measuring means for discharging a fluid toward the cornea of the eye and adapted to measure the intraocular pressure of the eye and means for projecting a predetermined target mark to the cornea of the eye and for receiving a reflected image of said target mark adapted to measure the radius of curvature of the cornea in accordance with the configuration of the corneal reflection image of the target mark, both means being integrally constructed.