Abstract: The invention relates to an opthalmological analysis method for measuring an intraocular pressure in an eye with an analysis system consisting of an actuating device, wherein the actuating device causes a puff of air to be applied to the eye in such manner that the cornea is deformed, an observation system with which the deformation of the cornea is observed and recorded, wherein sectional images of the cornea when it is deformed and not deformed are created with the observation device, and an analysis device with which the intraocular pressure is derived from the sectional images of the cornea, wherein a material characteristic of the cornea is derived from the sectional images of the cornea in the analysis device, wherein a diameter d1 of a first applanation area of the cornea and a diameter dn of a deformation area of the cornea is derived as a material characteristic.

Abstract: The invention relates to an illumination system (10) and an illumination method for an opthalmological analysis apparatus, in particular an analysis apparatus for measuring an intraocular pressure in an eye, wherein the analysis apparatus includes an actuation device (11) with which a puff of air for deforming a cornea (14) can be applied to the eye (12) in the direction of an optical axis (15) of the eye, wherein the illumination system includes at least one illumination device (23) with which the cornea of the eye can be illuminated by a slit light in such a way that a sectional image (27) can be generated in an illumination plane coinciding with the optical axis, wherein the illumination device is formed so that an illuminating beam path (28) of the illumination device oriented towards the eye is arranged at an angle ? relative to the optical axis (15).

Abstract: A positioning unit for positioning an optical unit (12, 13) comprising at least one optical element in a beam path (20) of a microscope between an objective lens of a microscope and in front of an eye to be monitored is provided, wherein the positioning unit comprises a connection device (21), wherein the connection device (21) can couple the positioning unit can be coupled to the microscope, wherein the positioning unit is formed, at least in part, of plastics material. The invention also relates to a monitoring device (10) comprising a positioning unit (11).

Abstract: The invention relates to a perimetric method for measuring a visual field of an eye, carried out with an ophthalmological device, particularly a perimeter or similar device, and an apparatus for data processing provided with a data base, wherein the data base includes data sets of visual fields, wherein a retina of the eye is divided into points that represent the visual field, wherein the points of the retina are exposed to optical stimuli of a defined intensity, wherein a reaction to a stimulus is calculated as a measurement result, wherein at least two predefined points are measured, wherein the predefined points each lie in anatomically independent nerve fiber regions and are in a statistically significant relation to each other, wherein a visual field of the eye is derived from the measurement results and the data sets.

Abstract: A positioning unit for positioning an optical unit (12, 13) comprising at least one optical element in a beam path (20) of a microscope between an objective lens of a microscope and in front of an eye to be monitored is provided, wherein the positioning unit comprises a connection device (21), wherein the connection device (21) can couple the positioning unit can be coupled to the microscope, wherein the positioning unit is formed, at least in part, of plastics material. The invention also relates to a monitoring device (10) comprising a positioning unit (11).

Abstract: A positioning unit (11) for positioning an optical unit (12, 13) comprising at least one optical element in a beam path (20) of a microscope between an objective lens of a microscope and in front of an eye to be monitored is provided, wherein the positioning unit comprises a connection device (21), by means of which the positioning unit can be coupled to the microscope, wherein the positioning unit comprises a positioning device (22), by means of which the optical element is movable relative to the microscope in the longitudinal direction of the beam path, wherein the positioning device is formed by a first double rocker mechanism (31) and a second double rocker mechanism (32), wherein the double rocker mechanisms are interconnected by means of a common coupling member (33). A monitoring device (10) is also provided that comprises the positioning unit (11).

Abstract: The invention relates to a method of determining and selecting a contact lens with an opthalmological device for examining the eyes, the opthalmological device comprising a keratometer and an autorefractometer as well as a data processor, whereby a refractive power of an eye and a topography of a cornea are determined, whereby refraction data describing a refraction of an eye to be examined are obtained, whereby topographic data describing the topography of the cornea of the eye are obtained, and whereby, by using the obtained refraction and topography data, contact lens data are calculated and a contact lens is selected from a database of the opthalmological device. In accordance with an apparatus embodiment of the invention, an opthalmological device for carrying out the method is also described.

Abstract: The invention relates to an illumination system (10) and an illumination method for an opthalmological analysis apparatus, in particular an analysis apparatus for measuring an intraocular pressure in an eye, wherein the analysis apparatus includes an actuation device (11) with which a puff of air for deforming a cornea (14) can be applied to the eye (12) in the direction of an optical axis (15) of the eye, wherein the illumination system includes at least one illumination device (23) with which the cornea of the eye can be illuminated by a slit light in such a way that a sectional image (27) can be generated in an illumination plane coinciding with the optical axis, wherein the illumination device is formed so that an illuminating beam path (28) of the illumination device oriented towards the eye is arranged at an angle ? relative to the optical axis (15).

Abstract: An eyesight testing apparatus includes an imaging device for virtual imaging a test object located within a focal length of the imaging device and imaged at different distances into eyes of a subject located in a focal point of the imaging device, an optical deflection device arranged in a beam path between the imaging device and the test object to deflect the beam path by 180°, wherein the deflection device is displaceable in the direction of the beam path and the test object is not, a monitor device that generates the test object and that comprises a single monitor, optical components lying in the beam path sized so that both eyes are able to take part in a test, and so a partial beam path is formed for each eye, and a blocking device arranged in the beam path, which comprises two LCD blocking elements for the partial beam paths.

Abstract: The invention relates to an ophthalmological analysis method for measuring an intraocular pressure in an eye with an analysis system consisting of an actuating device, wherein the actuating device causes a puff of air to be applied to the eye in such manner that the cornea is deformed, an observation system with which the deformation of the cornea is observed and recorded, wherein sectional images of the cornea when it is deformed and not deformed are created with the observation device, and an analysis device with which the intraocular pressure is derived from the sectional images of the cornea, wherein a structural characteristic and/or material characteristic of the cornea is derived from the sectional images of the cornea in the analysis device, wherein a stress of the cornea is derived as a structural characteristic and/or material characteristic, wherein stresses in the corneal material are rendered visible.

Abstract: The invention relates to an ophthalmological analysis method for measuring an intraocular pressure in an eye with an analysis system consisting of an actuating device, wherein the actuating device causes a puff of air to be applied to the eye in such manner that the cornea is deformed, an observation system with which the deformation of the cornea is observed and recorded, wherein sectional images of the cornea when it is deformed and not deformed are created with the observation device, and an analysis device with which the intraocular pressure is derived from the sectional images of the cornea, wherein a material characteristic of the cornea is derived from the sectional images of the cornea in the analysis device, wherein a diameter d1 of a first applanation area of the cornea and a diameter dn of a deformation area of the cornea is derived as a material characteristic.

Abstract: The invention relates to an ophthalmological analysis method for measuring an intraocular pressure in an eye with an analysis system consisting of an actuating device with which a cornea of the eye is deformed in contactless manner, wherein the actuating device causes a puff of air to be applied to the eye in such manner that the cornea is deformed, an observation system with which the deformation of the cornea is observed and recorded, wherein sectional images of the cornea when it is deformed and not deformed are created with the observation device, and an analysis device with which the intraocular pressure is derived from the sectional images of the cornea, wherein a material characteristic of the cornea is derived from the sectional images of the cornea in the analysis device, wherein a stiffness of the cornea is derived as a material characteristic.

Abstract: The present invention relates to a positioning apparatus (10) of a positioning unit for positioning an optical device of the positioning unit comprising at least one optical element in the ray path of a microscope in front of an eye to be observed, wherein the positioning apparatus comprises a carrier device (11) for coupling the positioning apparatus to the microscope and a holding apparatus (12) for holding the optical element, whereby the holding apparatus comprises holding devices (20) for connection of the optical device to the holding apparatus which are configured in such a manner that a distance space (24) is formed between the optical device and the holding apparatus.

Abstract: The invention pertains to a refractometer (01) for determining the refraction properties of an eye (02) of a patient with an optical projection device (03) that comprises at least one light source (08) that produces a light pattern, wherein the light pattern of the projection device (03) can be projected on the retina of the eye (02) and focused thereon, with an optical viewing device (04) that comprises at least one photoelectric sensor (12), wherein the light pattern reflected on the retina of the eye (02) can be viewed through the cornea and the lens of the eye with the viewing device (4) and projected on the photoelectric sensor (12) in the form of an image pattern, with an evaluation device for evaluating the image pattern recorded by the photoelectric sensor (12) and deriving the refraction properties of the eye, and with a distance measuring device for determining the distance between the refractometer (01) and the patient.

Abstract: The present invention relates to a positioning apparatus (10) of a positioning unit for positioning an optical device of the positioning unit comprising at least one optical element in the ray path of a microscope in front of an eye to be observed, wherein the positioning apparatus comprises a carrier device (11) for coupling the positioning apparatus to the microscope and a holding apparatus (12) for holding the optical element, whereby the holding apparatus comprises holding devices (20) for connection of the optical device to the holding apparatus which are configured in such a manner that a distance space (24) is formed between the optical device and the holding apparatus.

Abstract: The invention relates to a method and a device for determining the distance from a measurement point on a tissue surface (10, 13) of the eye (02), wherein a) an initial light pulse (09a) is generated using a pulse light source (03) and is directed onto the measurement point of the eye, b) a reflector light pulse (11) reflected on the tissue surface (10, 13) at the measurement point is intercepted by a light sensor (04), c) a follow-up light pulse (09b) of the pulsed light source (03) is triggered by the detection of the reflector light pulse (11) at the light sensor (04), d) the pulsed light source (03) generates further follow-up light pulses (09b) depending on the detection of the reflector light pulses (11) caused by the respectively preceding follow-up light pulses (09b) and thereby oscillates at a frequency F1, e) the frequency F1 is measured directly or indirectly, f) the length X of the ray path starting from the pulsed light source (03) via the measurement point to the light sensor (04) is derived f

Abstract: The invention relates to a measuring device (01) for measuring the refraction properties of optical lenses (07), especially spectacle glasses, comprising a measuring light grid (20) for producing a plurality of light beams (16) which are deflected by the lens (07) as a result of refraction of light, and comprising a measuring light detector (12) on which the deflected light beams are projected and are there recorded electronically, and comprising an evaluation device in which the refraction properties of the lens (07) are determined from the measurement signals of the measuring light detector (12), wherein a screen (10) comprising a plurality of light passage openings (23, 24) is arranged between the lens (07) to be studied and the measuring light detector (12), wherein the light beam (16) produced by the measuring light grid (20) and deflected at the lens (07) by refection of light is projected through the various light passage openings (23, 24) of the screen (10) along separate ray paths onto the measuring

Abstract: The invention relates to a measuring device (01) for measuring the refraction properties of optical lenses (07), especially spectacle glasses, comprising a measuring light grid (20) for producing a plurality of light beams (16) which are deflected by the lens (07) as a result of refraction of light, and comprising a measuring light detector (12) on which the deflected light beams are projected and are there recorded electronically, and comprising an evaluation device in which the refraction properties of the lens (07) are determined from the measurement signals of the measuring light detector (12), wherein an additional measuring system (14, 20) for electronic measurement of the geometry of the front lens surface (18) and/or the rear lens surface (19) is provided in the device, wherein the measurement result of the additional measuring system (14) is included in the determination of the refraction properties of the lens (07) in the evaluation device.

Abstract: The present invention relates to a method for operating an ophthalmological analysis system having a slit projection unit for slit illumination of the eye and a Scheimpflug camera for taking digitized sectional images of the eye, slit projection unit and Scheimpflug camera being mounted so that they may pivot jointly rotating around an axis which is essentially coincident with the optical axis of the eye. In a first position of slit projection unit and Scheimpflug camera, a recording of a sectional image of the eye is made and stored as the first image data set. Subsequently, slit projection unit and Scheimpflug camera are pivoted rotating at least once and fixed in this particular subsequent (second, third, fourth, . . . ) position. In the particular subsequent (second, third, fourth, . . . ) position of slit projection unit and Scheimpflug camera, a recording of a sectional image of the eye is made and stored as the subsequent (second, third, fourth, . . . ) image data set.