Carl Zeiss Meditec Ag

Xtreme Technologies Gmbh

Gregor Stobrawa

Mark Bischoff

Manfred Dick

Michael Bergt

Wilfried Bissmann

Dirk Muehlhoff

Martin Wiechmann

Markus Sticker

Christoph Russmann

Elke Ebert

Juergen Kuehnert

Martin Hacker

Marco Hanft

Matthias Reich

Dirk Preuss

Evangelos Papastathopoulos

Georg Sluyterman Van Langeweyde

Wolfgang Ziegler

Karsten Festag

Dietmar Steinmetz

Evangelos Papastathopoulous

Jon G Dishler

Uwe Wolf

Dirk Mühlhoff

Martin Kühner

Beate Böhme

Hartmut Vogelsang

Michael Kaschke

Tobias Damm

Andreas Weyhausen

Wolf Weimer

Dieter Grebner

Steffen Dubnack

Ludwin Monz

Roland Sauerbrey

Frank Brückner

Lars-Christian Wittig

Burkhard Wagner

Artur Högele

Andreas Wirth

Andreas Bartels

Karlheinz Rein

Dirk Müehlhoff

Klaus Ruehle

Marco Lehnort

Ralf Labouvie

Dirk MÜHLHOFF

Jürgen Kuehnert

A planning device for generating control data for a treatment apparatus which produces at least one cut surface in the cornea by operation of a laser device, and to a treatment apparatus including a planning device of the specified type. Also, a method for generating control data for such a treatment apparatus, and a method of eye surgery. In this case, a rotation of the cut surface about an axis running substantially parallel to the ocular axis is facilitated during the determination of the cut surfaces.

Eye-surgical treatment apparatus

A treatment method and apparatus for surgical correction of defective-eyesight in an eye of a patient, wherein a laser device is controlled by a control device, said laser device separating corneal tissue by irradiation of laser radiation to isolate a volume located within a cornea, wherein the control device controls the laser device to focus the laser radiation, by providing target points located within the cornea, into the cornea, wherein the control device, when providing the target points, allows for focus position errors which lead to a deviation between the predetermined position and the actual position of the target points when focusing the laser radiation, by pre-offsets depending on the positions of the respective target points to compensate for said focus position errors.

Treatment apparatus for surgical correction of defective eyesight, method of generating control data therefore, and method for surgical correction of defective eyesight

A planning device that generates control data for a treatment apparatus which produces at least one cut surface in the cornea by application of a laser device. The invention further relates to a treatment apparatus having a planning device of the aforementioned type. The invention further relates to a method of generating control data for this treatment apparatus, and also to a method for eye surgery, at least one cut surface being produced in the cornea by application of a treatment apparatus with a laser device. The planning device has a calculation application that defines corneal cut surfaces, including a lenticule cut and a cap cut, the incision being controlled by the control data such that mutually corresponding locations of the lenticule cut and cap cut are impinged by laser pulses during substantially the same time interval.

A treatment device for the surgical correction of hyperopia in the eye comprising a laser device controlled by a control device. The laser device separating corneal tissue by applying laser radiation. The control device controls the laser device for emitting the laser radiation into the cornea such that a lenticule-shaped volume is isolated. Removal thereof effects the desired correction. The control device predefines the volume such that a posterior surface and an anterior surface are connected via an edge surface that has a width in projection along the visual axis that is wider than the one which a straight line in the same projection, that is perpendicular at the edge of the posterior or the anterior surface would have relative to the associated surface and connects the anterior surface to the posterior surface or to the perceived extension thereof.

Treatment apparatus for operatively correcting defective vision of an eye, method for generating control data therefor, and method for operatively correcting defective vision of an eye

A method of refraction-correcting ophthalmic surgery in tissue of an eye after at least one previous ophthalmic surgery in the tissue, comprising accessing information on a pre-operative cut and defining a cut surface on the basis of the information on the pre-operative cut of the at least one previous ophthalmic surgery of the tissue of the eye.

Re-treatment for ophthalmic correction of refraction

An ophthalmological laser therapy system including an apparatus main body and a laser device which is arranged in the apparatus main body and in a laser arm. The laser arm is arranged on the apparatus main body and includes a lighting arrangement. The invention furthermore relates to a planning device and a planning method for planning a laser therapy on an ophthalmological laser therapy system. It seeks to provide an ophthalmological laser therapy system and a method, by which an optimal psychological (calming) effect can be facilitated for every patient. This calming effect is achieved by an ophthalmological laser therapy system whose laser arm has a lighting arrangement the color of which is variable on an individual basis, and by a corresponding planning device and a corresponding planning method.

Ophthalmological laser therapy system with lighting assembly

An ophthalmological laser therapy positioning device which facilitates accurate positioning of the laser therapy system vis-à-vis the patient's eye. The positioning device includes a first and a second recording unit, which provide recording data from different recording directions, a displacement unit that displaces the relative position of the eye vis-à-vis an optical opening of the laser therapy system on the basis of control commands, and a control unit that generates control commands on the basis of the recording data. The positioning device furthermore may include a display unit for displaying the recording data and an input unit for inputting input data, the control unit in this case generates control commands on the basis of the recording data and/or on the basis of the input data and to provide the control commands to the displacement unit. Corresponding positioning methods are also included.

Positioning device

An apparatus for producing incisions in an interior of an eye. For example, the apparatus includes an image recording device that records at least part of the image field and an image evaluation device that evaluates recordings of the image recording device and produces signals for the control device and/or the operator. Furthermore, the invention relates to a method for producing incisions in the interior of an eye, wherein an image recording device is used to record at least part of the image field and an image evaluation device evaluates the recordings of the image recording device and produces signals for the control device and/or the operator.

Producing cuts in the interior of the eye

The invention relates to a planning device for generating control data for a treatment apparatus, which by means of a laser device generates at least one cut surface in the cornea, and to a treatment apparatus having such a planning device. The invention further relates to a method for generating control data for a treatment apparatus, which by means of a laser device generates at least one cut surface in the cornea, and to a corresponding method for eye surgery. The planning device is thereby provided with calculating means for defining the corneal incision surfaces, wherein the calculation means determines the corneal incisions such that after inserting an implant into the cornea, existing refractive errors are counteracted.

Method for eye surgical procedure

A device for producing control data for a laser device for the surgical correction of defective vision. The device produces the control data such that the laser emits the laser radiation such that a volume in the cornea is isolated. The device calculates a radius of curvature R* to determine the control data, the cornea reduced by the volume having the radius of curvature R* and the radius of curvature being site-specific and satisfying the following equation: R*(r,φ)=1/((1/R(r,φ))+B(r,φ)/(n−1))+F, wherein R(r,φ) is the local radius of curvature of the cornea before the volume is removed, nis the refractive index of the material of the cornea, F is a coefficient, and B(r,φ) is the local change in refractive force required for the desired correction of defective vision in a plane lying in the vertex of the cornea, and at least two radii r1 and r2 satisfy the equation B(r=r1,φ)≠B(r=r2,φ).

Device and method for producing control data for the surgical correction of defective eye vision

A device for isolating a lenticle in the cornea of an eye. The device includes: a laser beam source to emit pulsed laser radiation having a pulse frequency of 1.2 MHz to 10 MHz, a pulse energy of 1 nJ to 200 nJ and a wavelength penetrating the cornea; a beam-forming unit having beam optics with an image field and that bundles pulsed laser radiation into a focus located inside the image field, and which has a maximum diameter of less than 3 μm; a beam-deflection unit shifting the focus in the cornea and inside the image field, the focus moving along a path when the image field is resting; and a control unit to control the source and the beam-forming unit to isolate the lenticle by specifying the path. The lenticle is delimited by a cut surface which is curved with regard to a front surface of the cornea.

Creation of curved cuts in the inside of the eye cornea

A lens element and a one-piece contact apparatus having a lens element and a holding device for fixing a patient's eye to a laser applicator of an ophthalmological laser therapy system and a corresponding production method. The production method is conceptually simple and user-friendly and allows a high degree of automation while at the same time meeting the high requirements for mechanical and optical precision of the lens element. The lens element has an optically effective zone and a joining zone. The joining zone also has a functional zone for joining the lens element to a holding device which is arranged continuously circumferentially or interrupted circumferentially at the outer edge of the lens element. The contact apparatus includes a lens element and a holding device, which are permanently connected to one another, wherein the lens element and the holding device are not connected to one another by adhesive-bonding.

Lens element and contact apparatus for an ophthalmological laser therapy system

Device and method for producing control data for the surgical correction of the defective eye vision

An optical system for a laser therapy instrument for the application of laser radiation on and in the eye, includes a femtosecond laser, an objective. The objective or at least one lens or lens group of the objective is shiftable in the direction of the optical axis being intended for shifting of the focus position from the region of the cornea to the region of the crystalline lens and vice versa. The optical system may include at least two optical assemblies designed for the axial variation of the focus of the therapeutic laser radiation, with the focus variation range Δz differing between the individual assemblies and a changing device, designed for the insertion of any one of these assemblies into the therapeutic laser beam path at a time.

Optical system for a laser therapy instrument

Growing community of inventors

Jena, Germany

Gregor Stobrawa