Abstract: An apparatus for corneal crosslinking, the use of the apparatus for corneal crosslinking, and a method for corneal crosslinking are provided. The apparatus comprises a source of laser radiation; a scanner device for scanning the laser radiation; and a control computer for controlling the scanner device.

Abstract: A device for generating at least one continuous slit-like incision (42) from the posterior surface (48) as far as the anterior surface (46) of the cornea (44) of an eye, comprising a laser device for generating at least one part of the incision with focused pulsed laser radiation, the laser device including controllable components for setting the location of the focus, a control computer for controlling these components, and also a control program for the control computer. The control program contains instructions that are designed to bring about, upon execution by the control computer, the generation of at least one part of the incision (42) originating from the posterior surface (48) of the cornea, the cross-sectional contour of the incision—when observed in the direction from the anterior surface to the posterior surface—deviating from a straight line (60) perpendicular to the surface of the eye.

Abstract: A test device to calibrate the pulse energy of a laser device which provides pulsed laser radiation includes a measuring head with multiple measuring probes. The test device is used in such a way that by means of the laser radiation, multiple test ablations are made on a test surface, in an arrangement corresponding to the relative spatial arrangement of the measuring probes, and the depths of the test ablations are then measured, with simultaneous use of the multiple measuring probes of the measuring head.

Abstract: A system and method for reshaping a cornea of a patient's eye to treat presbyopia are disclosed as well as a method of generating a computer program for use in such system. Ray tracing is used to determine an ablation pattern that defines an amount of corneal tissue to be ablated, wherein the ablation pattern achieves a pre-defined amount of at least one of sphere, spherical aberration, coma, and astigmatism in the eye.

Abstract: In certain embodiments, reducing opaque bubble layers (OBLs) comprises receiving information describing a tissue region of a tissue where laser pulses are applied to yield laser-induced optical breakdowns (LIOBs) in the tissue region. The LIOBs yield bubbles of gas. A concentration of the gas in the tissue region is estimated from the information. One or more laser parameters are adjusted in response to the concentration of the gas to satisfy a critical concentration rule.

Abstract: An arrangement for carrying out surgical laser treatments of the eye is adapted to emit pulsed treatment radiation with a wavelength of between about 190 nm and about 380 nm and a pulse duration in the femtosecond range. Such treatment radiation allows nonaggressive corneal or intraocular laser treatment of the eye, for example in order to make corneal cuts or deliberately ablate corneal tissue.

Abstract: The present invention relates to a method for generating a control program for ophthalmologic LASIK surgery, with which a pulsed laser system can be controlled for the photodisruptive cutting of a flap, having the following steps: obtaining empirical data, which relate to the effect in particular of flap shapes and ablation profiles on postoperative refractive results, obtaining measurement data relating to the eye to be treated, calculating an optimal cutting shape for the photodisruptive cutting of the flap by taking into account the said empirical data and the said measurement data, and generating the control program on the basis of the calculated cutting shape.

Abstract: There is provided an apparatus for recording a depth profile of a biological tissue, in particular a frontal eye section of a human eye, according to the principle of optical coherence tomography, comprising a light source adapted to generate a bundle of light rays, an interferometer arrangement having a beam splitter device adapted to spatially separate the bundle of light rays into a reference beam and a measurement beam directed toward the tissue, a reference beam deflection device adapted to deflect the reference beam, a beam superpositioning device adapted to spatially superimpose the deflected reference beam onto the measurement beam deflected by the tissue into a superpositioned beam, and a detector arrangement for detecting information in the superpositioned beam associated with the difference of the optical path length of the reference beam and the measurement beam.

Abstract: A process and an apparatus are proposed for determining optical aberrations of an eye with its optical system including the cornea and the lens. The process includes the reconstructing of wavefront aberrations of the eye as a deviation of the wavefront, determined by the optical system of the eye with a process of aberrometry, with respect to an ideal planar wavefront generated by an aberration-free eye model. A measured ocular length is employed for the aberration-free eye model.

Abstract: An embodiment of a scanning optical system comprises: an optical source providing a beam of pulsed light of ultra-short pulse duration; a deflector for deflecting the beam through a scan angle; a lens system including a focusing objective for focusing the deflected beam; a dispersion compensating device for reducing dispersion-related distortion of a pulse of the beam by the lens system, the dispersion compensating device including a deformable, dispersive mirror and an actuator device for the mirror; and a controller for controlling the actuator device to change a shape of the mirror in accordance with the scan angle.

Abstract: A process for configuring a laser device comprising: selecting a pulse length within a range from 1 ps to 1 ns; selecting a wavelength for the laser radiation within a range from 300 nm to 400 nm or within a range from 800 nm to 1100 nm; ascertaining a set of parameter values of the laser device that when the laser device is operated with these parameter values a two-dimensionally extensive separation of tissue of human corneal or lenticular tissue is achieved by stringing together local sites of damage, the set of parameter values including the selected pulse length, the selected wavelength, and values for at least one of the following parameters: a pulse energy, a pulse repetition rate, a fluence per radiation pulse, a number of pulses per site of damage, a scanning speed of a scanning apparatus of the laser device, and a focus diameter.

Abstract: A laser apparatus is controlled by a control program that operates to use laser radiation to generate an incision figure in the cornea of an eye, the incision figure including a an incision that bounds a corneal tissue volume. The control program operates to move the radiation focus in a radiation propogation direction successively in a plurality of superposed planes such that the radiation focus is moved without motion control in the propogation direction. The control program provides, for each plane, for a meandering scan path of the radiation focus that extends outside the tissue volume. The control program operates to allow through to the eye, in each plane, at least such radiation pulses that generate the first incision and to blank, in at least a fraction of the planes, at least a fraction of radiation pulses assigned to regions of the path that are at a distance from the incision.

Abstract: In certain embodiments, a system (10) comprises a laser source (20), one or more optical elements (24), a monitoring device (28), and a control computer (30). The laser source (20) emits one or more laser pulses. The optical elements (24) change a pulse length of the laser pulses, and the monitoring device (28) measures the pulse length of the laser pulses to detect the change in the pulse length. The control computer (30) receives the measured pulse length from the monitoring device (28), determines one or more laser parameters that compensate for the change in the pulse length, and controls the laser source (20) according to the laser parameters.

Abstract: An apparatus for treating an eye with laser radiation exhibits the following: a laser radiation source (12) for generating laser radiation (14), means (20, 24, 40, 42, 44) for directing the laser radiation (14) onto the eye (10) for the purpose of an ophthalmological intervention on or in the eye, a controller (50) for controlling the laser radiation (14) in space and time in relation to the eye (10) in accordance with a treatment program (52) which is oriented towards a center (Z) of the eye, a camera (46) which records a feature of the eye (10), and an image-processing unit (50a) which derives information about the center (Z) of the eye (10) from the recording of the camera and enters this information into the controller (50), as a result of which the controller (50) controls the laser radiation (14, 14?) in accordance with the treatment program and in a manner depending on the center of the eye derived in step e).

Abstract: A device for ophthalmic radiation is provided. The device comprises a radiation interface, an optical branch coupler, and a plurality of ophthalmic units. The radiation interface is adapted to at least one of output and capture radiation on an optical path. The optical path is directable towards a patient's eye. The optical branch coupler is adapted to couple output radiation from a plurality of optical branches into the optical path and to couple captured radiation from the optical path into the optical branches. The captured radiation is spectrally split by the optical branch coupler into the optical branches. Each of the optical branches has a different spectral range. Each of the plurality of ophthalmic units is arranged to couple to one of the optical branches.

Abstract: An apparatus for ophthalmological, in particular refractive, laser surgery includes a laser-beam source (20) for emitting a focused treatment laser beam (20?) and also includes an optical-coherence interferometric measuring device (34), for example an OLCR pachymeter, for measuring the z-position of a predetermined point of an eye to be treated in the coordinate system of the laser-surgery apparatus. A computer (C) serving as evaluating and control unit has been set up to assess, on the basis of the measured z-position, whether a desired treatment point of the eye in the z-direction falls in the focal plane of the treatment laser beam or is offset in relation to said plane. Depending on whether or not the patient is correctly positioned in relation to the focal plane, the computer (C) can bring about a range of actions.

Abstract: An apparatus for ophthalmic laser surgery includes a contact surface for shaping abutment of an eye to be treated, a first radiation-source for making a treatment laser beam available, optical components for directing the treatment laser beam through the contact surface onto the eye, and also a measuring instrument for measuring the depth of the anterior chamber of the eye bearing against the contact surface, whereby the measuring instrument makes measured data available that are representative of the depth of the anterior chamber of the eye at least one point of the same. The apparatus enables a monitoring of the depth of the anterior chamber for a predetermined limiting value being fallen short of and in this way can prevent a dangerous close approach of the posterior surface of the cornea to the anterior surface of the lens when the eye is pressed against the contact surface.

Abstract: A medical device comprises a device adapted to perform a medical procedure; a biometric information sensing device adapted to sense biometric information of a user; a controller adapted to retrieve stored biometric registration information of a user from a storage device in communication with the controller, to determine an identity of the user by comparing the stored biometric registration information and the sensed biometric information, and to prevent performance of the medical procedure if the sensed biometric information does not correspond to the stored biometric registration information.

Abstract: In certain embodiments, a device configured to perform epithelial removal comprises a laser device and a control computer. The laser device can separate the epithelium from the Bowman's layer of an eye using pulsed laser radiation having ultrashort pulses. The laser device includes controllable components that control a focus of the pulsed laser radiation. The control computer controls the controllable components to focus the pulsed laser radiation at one or more epithelial cell layers of the epithelium to photodisrupt at least a portion of the epithelial cell layers.

Abstract: A laser system for eye surgery comprises an eye-surgical laser apparatus and a set of interface devices. The eye-surgical laser apparatus has optical components for providing pulsed focused laser radiation with radiation properties matched to the generation of photodisruptions in human eye tissue and a control unit for positional control of the radiation focus of the laser radiation. The control unit is designed for executing various control programs that represent various types of incision figures. Each interface device includes a contact body that is transparent to the laser radiation, with an abutment face for abutment against an eye to be treated, and a coupling portion for detachable coupling of the interface device onto a counter-coupling portion of the laser apparatus. The interface devices differ by virtue of a differing optical effect on the laser radiation provided in the laser apparatus.