Carl Zeiss Meditec Ag

Imra America, Inc.

Xtreme Technologies Gmbh

Resbiomed Technologies Ood

Mark Bischoff

Gregor Stobrawa

Dirk Muehlhoff

Mario Gerlach

Michael Bergt

Markus Sticker

Marco Hanft

Wilfried Bissmann

Martin Wiechmann

Dirk Mühlhoff

Mark P Bendett

Carsten Lang

Manfred Dick

Elke Ebert

Martin Hacker

Jon G Dishler

Karsten Festag

Dirk Preuss

Evangelos Papastathopoulos

Roland Sauerbrey

Wolfgang Ziegler

Dietmar Steinmetz

Thomas Nobis

Matthias Wottke

Ahmed Sedky

Evangelos Papastathopoulous

Michael Kempe

Uwe Wolf

Christian Dietrich

Holger Maeusezahl

Beate Böhme

Johannes Kindt

Dieter Grebner

Steffen Dubnack

Joachim Fiedler

Robert Pomraenke

Lars-Christian Wittig

Georg Sluyterman Van Langeweyde

Juergen Ledermann

Markus Strehle

Andreas Wirth

Frank Brückner

Dick Manfred

Patrick Nast

Gregory Stobrawa

Lars Christian Wittig

Dirk Müehlhoff

Klaus Ruehle

Andreas Weyhausen

Wolf Weimer

Alexander Angelov Angelov

Yavor Petrov Angelov

Dirk MÜHLHOFF

Jürgen Ledermann

Mario Dipl-Ing Gerlach

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.

Eye-surgical treatment apparatus

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

A planning device for generating control data, a treatment apparatus for refraction correction eye surgery and a method for generating control data for such a treatment apparatus which allows an improved subsequent refraction correction. The planning device includes a calculation processor for defining a cut surface of the cornea for post-treatment, wherein the calculation device is designed such that a change of thickness of the epithelium is taken into account in the calculation, which was caused essentially by a pretreatment.

Post-treatment in refraction correction during eye surgery

An arrangement for OCT-based laser treatment of vitreous floaters. The arrangement for OCT-based laser vitreolysis includes an OCT system, a laser system having a deflection unit, optical elements that couple the OCT system and the laser system, a display unit and a central control and operating unit. The OCT system is configured to localize the floaters, the laser system is configured to destroy the floaters by application of laser pulses and the central control and operating unit is configured to determine apart from the coordinates of the localized floaters also their distance to structures of the eye, to derive exclusion criteria for the treatment, to align the deflection unit of the laser system to these coordinates and to focus and activate the laser system. The present invention relates to an arrangement for the gentle, low risk and painless laser treatment of vitreous floaters, which enables partially or fully automated therapy.

Arrangement for the OCT-based laser vitreolysis

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

Devices and methods of laser surgery of an eye, especially for refractive surgery, preferably for keratoplasty. The invention includes a planning and control unit, a system for laser surgery of an eye and a planning and control method wherein a device coordinate system of the first laser device and a device coordinate system of the characterization device are coupled using registration and measurement data or model data of the lamella can be unambiguously registered to the device coordinate systems, further by a defined edge geometry of the lamella, an ametropia correction during the generation of the lamella and by taking into account the hydration condition of the lamella, as well as methods for surgery.

Devices and methods for laser surgery of an eye, especially for keratoplasty

A system for therapy of the eye by treating tissue with therapeutic radiation using nonlinear interaction. A laser device is provided, which delivers the therapeutic radiation. The therapeutic radiation is focussed by a focussing device in an image field, and xy scanners and z scanners shift the focus laterally and longitudinally within a treatment volume. The therapeutic radiation is either a second short pulse radiation or a first short pulse radiation, each of which have a spectral centroid within a wavelength range defined by the short pulse properties. The system is particularly corrected with regard to longitudinal chromatic aberrations and lateral chromatic aberrations such that the spectral characteristic curves of the two aberrations each have a local extreme within the wavelength ranges, and a certain tolerance within the wavelength ranges is not exceeded, therefore the characteristic curves are very shallow.

System for therapy of the eye by treating tissue using non-linear interaction

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

Mark Bischoff