Abstract: This invention relates to a method and a device for the complete correction of sight defects in the human eye. Combinations of measuring, and processing methods are described which when applied as disclosed in the invention, make it possible to fully correct sight defects in the human eye. Measuring methods are used which can precisely scan the surface of the cornea and also register other imaging defects in the light path up to the retina. Computer-aided of said measuring results determined when combined with calculation of ideally corrected ocular lenses (for example after cataract operations) or ideally corrected surfaces of the cornea opens up the possibility of manufacturing a patient-specific lens and/or achieving ideal correction of the cornea using preferably a topography-supported spot-scanning-excimer laser system.

Abstract: The invention relates to a method and a device for the complete correction of sight defects in the human eye. Combinations of measuring, and processing methods are described which when applied as disclosed in the invention, make it possible to fully correct sight defects in the human eye. Measuring methods are used which can precisely scan the surface of the cornea and also register other imaging defects in the light path up to the retina. Computer-aided of said measuring results determined when combined with calculation of ideally corrected ocular lenses (for example after cataract operations) or ideally corrected surfaces of the cornea opens up the possibility of manufacturing a patient-specific lens and/or achieving ideal correction of the cornea using preferably a topography-supported spot-scanning-excimer laser system.

Abstract: The present invention relates to a method and a device for treating opacities and/or hardenings of an unopened eye. It is a specific advantage of the solution according to the invention that the treamtment of the inner region of the eye is possible without the need to introduce a surgical instrument into the eye.

Abstract: A medical instrument for phacoemulsification with which the biological tissue of a lens of the eye is comminuted by the introduction of energy, the comminuted product is sucked out through an incision in the cornea, while intraocular pressure is maintained by supplying an irrigating liquid. In an instrument of the type mentioned above, two cannulas are provided for sucking out the ablated lens material and for supplying the irrigating liquid and are connected, via feed lines, with the suction device and with the supply device. A switchable directional valve is provided in the feed lines between the cannulas and the suction device and supply device, by means of which, in a first valve position, a first cannula is connected with the suction device and the second cannula is connected with the supply device and, in a second valve position, the second cannula is connected with the suction device and the first cannula is connected with the supply device.

Abstract: A medical handpiece is disclosed which is connected with a laser radiation source via a beam guidance device and by which a laser beam is directed to a treatment area. The handpiece is freely movable to the laser beam source. At least one optical element with a surface which is structured in the micrometer range and which is accordingly micro-optically active is provided inside the handpiece following an exit face of the beam guidance device.

Abstract: An arrangement for laser coagulation at the ocular fundus with at least one illumination light source for an illumination beam path, with a laser arrangement for generating a sighting and therapy beam path, wherein the sighting radiation and therapy radiation have different wavelengths, with observation optics for visual observation of the ocular fundus, for selecting the coagulation site and/or for monitoring the results of coagulation, and with a protective mechanism which prevents the laser radiation from penetrating into the eye of the person administering treatment. An optical element arranged in the sighting and therapy beam path is provided as a protective device, wherein this optical element has a plurality of optically active areas whose optical characteristics differ from one another. In this way, an uncomplicated construction of the device which is characterized by an extremely high degree of safety for the treating person is achieved.