Abstract:
A device and a method for the femtosecond laser surgery of tissue, especially in the vitreous humor of the eye. The device includes an ultrashort pulse laser with pulse widths in the range of approximately 10 fs-1 ps, especially approximately 300 fs, pulse energies in the range of approximately 5 nJ-5 μJ, especially approximately 1-2 μJ and pulse repetition rates of approximately 10 kHz-10 MHz, especially 500 kHz. The laser system is coupled to a scanner system which allows the spatial variation of the focus in three dimensions (x, y and z). In addition to the therapeutic laser/scanner optical system, the device includes a navigation system.
Abstract:
A navigation apparatus for optically analyzing an inner structure of an optical element and processing that element includes a detection device and a processing device. The detection device has an aperture smaller than 0.25 and the processing device is disposed relative to the analyzed inner structure of the optical element. An apparatus for planning therapy for a human eye includes a dynamic wavefront measurement device for acquiring wavefront data, a diagnostic device for determining geometric parameters of the optical apparatus of the eye, a controller for consistent superposition of the wavefront and geometric data, and an additional controller for planning the most efficient therapeutic laser cutting paths.
Abstract:
An ophthalmological laser system for photodisruptive irradiation of ocular tissue, including a crystalline lens or a cornea. The system includes an ultra-short pulse laser, the radiation of which is focusable as illumination light via an illumination beam path including a scanner unit and focusing optics. A control unit is programmed to execute determining irradiation control data for photodisruptions at irradiation points in an interior of the ocular tissue distributed three-dimensionally and non-equidistantly to create at least one predetermined target incision. The laser system then irradiates the ocular tissue according to the determined irradiation control data.
Abstract:
In a direct drill bit drive for tools for comminuting brittle materials and penetrating into brittle materials by percussive impact on the basis of a heat engine operated with a gaseous working medium, the heat engine is a hot gas engine operating in accordance with a real Stirling cycle process.
Abstract:
A device and a method for controlling a laser system for the treatment of the eye lens by means of laser-induced disruptions. The laser system includes a femtosecond laser and a deflection unit for directing the laser beam and a detection device for detecting a value characteristic of the occurrence of disruptions being provided. The detection device is connected to the control device and the control device is adapted to determine a pulse energy for the laser system from the characteristic value and to actuate the laser accordingly.
Abstract:
An ophthalmological laser system for photodisruptive irradiation of ocular tissue, including a crystalline lens or a cornea. The system includes an ultra-short pulse laser, the radiation of which is focusable as illumination light via an illumination beam path including a scanner unit and focusing optics. A control unit is programmed to execute determining irradiation control data for photodisruptions at irradiation points in an interior of the ocular tissue distributed three-dimensionally and non-equidistantly to create at least one predetermined target incision. The laser system then irradiates the ocular tissue according to the determined irradiation control data.
Abstract:
An arrangement in the illumination beam path of a laser scanning microscope, comprising a mirror which can be introduced into the beam path for coupling in at least one additional wavelength, and a method for the operation of a laser scanning microscope with a mirror which can be swiveled in rapidly for coupling at least one additional wavelength into the illumination beam path, wherein the swiveling process is synchronized with the illumination control by a control unit in such a way that at least one additional wavelength is coupled into the illumination beam path when the mirror is swiveled out.
Abstract:
A device and a method for controlling a laser system for the treatment of the eye lens by means of laser-induced disruptions. The laser system includes a femtosecond laser and a deflection unit for directing the laser beam and a detection device for detecting a value characteristic of the occurrence of disruptions being provided. The detection device is connected to the control device and the control device is adapted to determine a pulse energy for the laser system from the characteristic value and to actuate the laser accordingly.
Abstract:
In a direct drill bit drive for tools for comminuting brittle materials and penetrating into brittle materials by percussive impact on the basis of a heat engine operated with a gaseous working medium, the heat engine is a hot gas engine operating in accordance with a real Stirling cycle process.
Abstract:
Selection of an appropriate intraocular lens (IOL) and/or the applicable surgical parameters for optimizing the results of refractive procedures on the eye. Features of the IOL are crucial for the selection and/or adjustment of the optimal IOL, but so is the IOL selection method (and parameters) from a surgical perspective. For the method, corresponding output parameters are determined from predetermined, estimated, or measured input parameters and/or their mean values, wherein at least two input parameters are varied with one another and which have at least one input parameter as a distribution function. The resulting function is optimized by means of corresponding target values and the determined distribution function of one or more output parameters is used as a decision aid. The present solution is used for selecting an appropriate IOL and/or the applicable surgical parameters and is applicable in the field of eye surgery for implanting IOLs.