Abstract: In certain embodiments, an ophthalmic surgical system for ablating tissue of an eye comprises controllable components (such as a light source and a scanner), optical elements, and a computer. The light source generates a light beam comprising pulses, where a propagation direction of the light beam defines a z-axis. The scanner directs a focal point of the light beam in an xy-plane orthogonal to the z-axis. The optical elements shape and focus the focal point of the light beam at a treatment region of the eye. The computer instructs one or more of the controllable components to generate the light beam comprising the pulses, where each pulse has a fluence greater than 1 J/cm2. An optical element of the optical elements focuses the focal point of the light beam with a spot size of less than 0.4 mm at the treatment region according to a focal spot pattern.

Abstract: According to certain embodiments, an ophthalmic surgical system for treating presbyopia comprises controllable components and a computer. The controllable components comprise a light source that generates a light beam and a scanner that directs a focal point of the light beam. The computer determines an ablation profile to remove tissue from a central region and a peripheral region of a cornea of a first eye of a pair of eyes. The ablation profile is designed to remove tissue from the central region to yield a protrusion to provide for near-vision, and to remove tissue from the peripheral region to correct to emmetropia.

Abstract: In certain embodiments, an ophthalmic surgical system for creating a lenticule in the cornea of an eye comprises controllable components (including a laser source and a scanner) and a computer. The laser source generates a laser beam, and the scanner directs the focal point of the laser beam. The computer determines a lenticule design for the lenticule having a posterior side and an anterior side. Either the posterior side or the anterior side has a central portion and a peripheral portion. The lenticule design is formed using a major lenslet and a minor lenslet, where the major lenslet is designed to correct to emmetropia. The lenticule design is formed by subtracting the minor lenslet from the major lenslet, where the subtraction of the minor lenslet yields the central portion. The computer instructs one or more of the controllable components to create the lenticule.

Abstract: Method for determining deviations between coordinate systems of different technical systems, comprising the steps of determining a coordinate position of a reference feature of a test object in the coordinate system (u,v) of a first of the technical systems, the attachment of at least one test feature to the test object, with the test feature being attached in the coordinate system of a second of the technical systems at a coordinate position that is determined in dependence on the determined coordinate position of the reference feature, the determination of a coordinate position of at least one test feature and/or at least one feature derived from it in the coordinate system (u,v) of the first technical system, and determination of deviations between the coordinate systems of the first and second technical system, at least on the basis of: (a) the determined coordinate position of at least one test feature and/or of at least one feature derived from it in the coordinate system (u,v) of the first technical sy

Abstract: Method for determining deviations between coordinate systems of different technical systems, comprising the steps of determining a coordinate position of a reference feature of a test object in the coordinate system (u,v) of a first of the technical systems, the attachment of at least one test feature to the test object, with the test feature being attached in the coordinate system of a second of the technical systems at a coordinate position that is determined in dependence on the determined coordinate position of the reference feature, the determination of a coordinate position of at least one test feature and/or at least one feature derived from it in the coordinate system (u,v) of the first technical system, and determination of deviations between the coordinate systems of the first and second technical system, at least on the basis of: (a) the determined coordinate position of at least one test feature and/or of at least one feature derived from it in the coordinate system (u,v) of the first technical sy

Abstract: A device for the recognition of caries, plaque or bacterial infection on teeth, which includes a light source for generating an excitation radiation which is to be directed onto a tooth to be investigated and producing an fluorescence radiation at the tooth. Also included is a detection device for detecting the fluorescence radiation of the tooth, and a spectral filter arranged in front of the detection device, wherein the wavelength of the excitation radiation emitted from the light source lies within the range of between 640 and 670 nm.