Carl Zeiss Meditec Ag

Dieter Grebner

Manfred Dick

Matthias Reich

Marco Hanft

Juergen Ledermann

Andreas Koch

Mark Bischoff

Gregor Stobrawa

Martin Kühner

Michael Kaschke

Tobias Damm

Artur Högele

Karlheinz Rein

Ludwin Monz

Dirk MÜHLHOFF

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

A polarization beam splitter selectively decouples detection light onto a detector such that it has a polarization direction that differs from the emitted illumination light. This enables the detection of the light scattered back in the eye lens at a high level of accuracy, since stray light from reflections at optical components of the light path is suppressed. In the generating of photo disruptions or other incisions, the ray exposure of the retina may be reduced in that the incisions being furthest away from the laser are induced first such that laminar gas inclusions with an existence duration time of at least 5 seconds result. In this manner the laser radiation propagated in the direction of the retina in further incisions are scattered and partially reflected such that the influence impinging upon the retina is reduced.

Ophthalmological laser system and operating method

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.

Ophthalmological laser system

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.

Device and method for controlling a laser system

Ophthalmologic laser system

Growing community of inventors

Grossloebichau, Germany

Dieter Grebner