Abstract: A device for the subjective determination of aberrations of higher orders Xi in an optical system, in particular in an eye includes at least one observation channel into which defined plates can be introduced, the individual plates having optically active structures which correspond to a defined Zernike polynomial and to a defined amplitude, at least one order Xi of the Zernike polynomial being greater than two.

Abstract: A method for measuring the dynamic behavior of an optical system is aimed at rendering the dynamic behavior of the optical system objectively detectable. To this end, the optical system to be measured is stimulated by stimuli whereby causing it to react, and the reaction is detected by means of a wave front analysis.

Abstract: A method and device for modifying optical system properties by means of a continuously multifocal profile, wherein said profile comprises a component for increasing the optical system focal depth and is calculated according to a fourth-order Zernike polynom. The aim of said invention is to avoid the eye base refraction and, for this purpose, said focal depth increasing component is also calculated according to the second-order Zernike polynom.

Abstract: A method for measuring the dynamic behavior of an optical system is aimed at rendering the dynamic behavior of the optical system objectively detectable. To this end, the optical system to be measured is stimulated by stimuli whereby causing it to react, and the reaction is detected by means of a wave front analysis.

Abstract: A device for the subjective determination of aberrations of higher orders Xi in an optical system, in particular in an eye includes at least one observation channel into which defined plates can be introduced, the individual plates having optically active structures which correspond to a defined Zernike polynomial and to a defined amplitude, at least one order Xi of the Zernike polynomial being greater than two.

Abstract: A device for the subjective determination of aberrations of higher orders Xi in an optical system, in particular in an eye includes at least one observation channel into which defined plates can be introduced, the individual plates having optically active structures which correspond to a defined Zernike polynomial and to a defined amplitude, at least one order Xi of the Zemike polynomial being greater than two.

Abstract: The invention is directed to an arrangement and processes for the suction removal of waste products such as smoke and tissue particles in the ablation of biological tissue by means of a laser beam (4), wherein the laser beam (4) is directed to the tissue through the orifice (3) of a tubular channel (2) and the waste products are sucked through the orifice (3) into the channel (2). According to the invention, it is provided in an arrangement of the type mentioned above that the inner wall (6) of the channel (2) has at least one outlet opening (8) for a gas in the vicinity of the orifice (3) and the flow of gas is directed to the center of the channel and therefore toward the laser beam (4).

Abstract: A device for shaping objects by removal of material from the surface thereof with a pulsed laser beam and a deflecting device through which the laser beam is guided over the surface of the object. An optical device is provided for changing the distribution of the radiation intensity inside the laser beam cross section. After the passage of the laser beam through this optical device, the radiation intensity has a bell-shaped or Gaussian distribution, or a distribution similar to a bell-shaped or Gaussian distribution, in at least one cross-sectional direction through the laser beam.

Abstract: A device for figuring objects by means of material erosion of the surface thereof, comprising a pulsed laser beam and a deflection device through which the laser beam is directed at the object surface and via which the object surface is guided. The invention is suitable for figuring natural optical lenses made from a biological substance or artificial optical lenses. The inventive device is provided with an optical device to modify the distribution of the radiation intensity inside the laser beam cross section. The radiation intensity, once the laser beam has passed through the optical device, has a bell-shaped or Gaussian-like distribution in at least one cross sectional direction through the laser beam.

Abstract: A cutting device for removing an epithelium flap from an eye in a simple and safe that includes a rotation-symmetric cutting body with a cutting edge and a cavity with a bearing surface for the epithelium flap, as well as a device for fixing the epithelium flap onto the bearing surface.

Abstract: The invention relates to a method for controlling a device for the treatment or refractive correction of the human eye by means of an electronic computer. The aim of the invention is to create a method for controlling a device for treating the human eye, which provides a simple overview of the influence of all of the parameters. To this end, once the operating parameters have been determined, a graphical simulation of the operating procedure is carried out in the form of a graphical visualization.

Abstract: There is now provided a method for determining vision defects and for collecting data for correcting vision defects of the eye. The method comprises projecting an image into the eye of the patient with an adaptive optical system having adaptive optical elements. The optical characteristics of the optical elements can be individually changed by an electrical signal. The presence of distortions of the image as perceived by the patient is determined by interaction of the patient with the examiner. By way of an electronic control system the optical characteristics of the adaptive optical elements are changed through outputting of an electrical signal to obtain a modified image with minimized distortions in the eye of the patient. The optical characteristics of the adaptive optical elements, as modified, are determined and vision correcting data for the eye being examined are computed from the optical characteristics of the adaptive optical elements, as modified.

Abstract: The invention relates to a device for the subjective determination of aberrations of higher orders Xi in an optical system, in particular in an eye (5), comprising at least one observation channel (15) into which defined plates (20) can be introduced, the individual plates (20) having optically active structures (21) which correspond to a defined Zernike polynomial and to a defined amplitude, at least one order Xi of the Zernike polynomial being greater than two.

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 for measuring the dynamic behavior of an optical system. The aim of the invention is to render the dynamic behavior of an optical system objectively detectable. To this end, the optical system to be measured is stimulated by stimuli whereby causing it to react, and the reaction is detected by means of a wave front analysis.

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 invention relates to a method and to a corresponding system for removing material using laser radiation. The aim of the invention is to keep the laser beam cross-section free from contaminations and to ensure constant climatic ambience conditions at the site of removal during the removal process. The inventive method and system is characterized in that the temperature and/or the humidity at the site of removal is maintained substantially constant by means of a gas that is allowed to flow across the site of removal in a predetermined direction. In different embodiments of the invention the gas has constant or varying temperatures, humidities and flow speeds during the removal process. The inventive system for carrying out the method is characterized by a tubular channel (1) through whose end a laser beam (3) is incident on the surface of an object (2) and removes material.

Abstract: The invention is directed to an arrangement and processes for the suction removal of waste products such as smoke and tissue particles in the ablation of biological tissue by means of a laser beam (4), wherein the laser beam (4) is directed to the tissue through the orifice (3) of a tubular channel (2) and the waste products are sucked through the orifice (3) into the channel (2). According to the invention, it is provided in an arrangement of the type mentioned above that the inner wall (6) of the channel (2) has at least one outlet opening (8) for a gas in the vicinity of the orifice (3) and the flow of gas is directed to the center of the channel and therefore toward the laser beam (4).

Abstract: A arrangement and processes is disclosed for the suction removal of waste products such as smoke and tissue particles in the ablation of biological tissue by means of a laser beam, wherein the laser beam is directed to the tissue through the orifice of a tubular channel and the waste products are sucked through the orifice into the channel. It is provided in an arrangement of the type mentioned above that the inner wall of the channel has at least one outlet opening for a gas in the vicinity of the orifice and the flow of gas is directed to the center of the channel and therefore toward the laser beam. In this way, it is effectively achieved that the gas does not flow through between the orifice and the treatment area so as to flow over the surface of the substance, but exits already from the orifice or from the immediate vicinity of the orifice under by suitable pressure and is guided into the interior of the channel.

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.