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Carl Zeiss Meditec Inc patents


Recent patent applications related to Carl Zeiss Meditec Inc. Carl Zeiss Meditec Inc is listed as an Agent/Assignee. Note: Carl Zeiss Meditec Inc may have other listings under different names/spellings. We're not affiliated with Carl Zeiss Meditec Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | Carl Zeiss Meditec Inc-related inventors


 new patent  Method for presenting images of a digital surgical microscope and digital surgical microscope system

The invention relates to a method for presenting images recorded by means of a digital surgical microscope system (10). An image is thereby produced on an image sensor (13) by means of an image recording unit (12) and the image recorded by the image sensor (13) is reproduced for a user (5), at least in certain regions, on a display unit (18). ... Carl Zeiss Meditec Inc

 new patent  Systems and methods for improved ease and accuracy of gaze tracking

Methods for improving gaze tracking are presented. These methods eliminate the need for a separate initial calibration step to determine whether the subject is properly centrally fixated during testing. ... Carl Zeiss Meditec Inc

Ophthalmological laser therapy device

An ophthalmological laser therapy device including a laser system, an x-y scanner, collecting optics and a z-scanner. The invention also relates to a method for processing a tissue of an eye by a therapeutic laser beam of an ophthalmological laser therapy device. ... Carl Zeiss Meditec Inc

Operating microscope

An operating microscope (2, 48) for observing an eye (77) is provided. The operating microscope (2, 48) comprises a main objective (5) and a fundus imaging system (71) that is positionable in the beam path (7) between the eye (77) and the main objective (5), said fundus imaging system having an ophthalmoscopy magnifier (73). ... Carl Zeiss Meditec Inc

Re-treatment for ophthalmic correction of refraction

A planning device generating control data for a treatment apparatus for refraction-correcting ophthalmic surgery is provided, said apparatus using a laser device to separate a corneal volume, which is to be removed for correction, from the surrounding cornea by at least one cut surface in the cornea of an eye, said planning device comprising an interface for receiving corneal data including information on pre-operative cuts which were generated in a previous ophthalmic operation, and computing means for defining a corneal cut surface which confines the corneal volume to be removed, said computing means defining the corneal cut surface on the basis of the corneal data and generating a control dataset for the corneal cut surface for control of the laser device.. . ... Carl Zeiss Meditec Inc

High temporal resolution doppler oct imaging of retinal blood flow

Techniques are introduced to improve the ability of oct to determine more accurately the nature of the flow of fluids in the eye, including faster measurements of the flow and a method to reduce geometric uncertainties due to eye movements.. . ... Carl Zeiss Meditec Inc

Systems for visual field testing

Systems for visual field testing are described. One example system for testing the visual function of a patient includes a display, optics, a variable focus lens, a response detection system, and a processor. ... Carl Zeiss Meditec Inc

Combined structure-function guided progression analysis

Various methods of displaying combined structural and functional disease progression information of a patient's eye are described. In one exemplary method, a set of structural measurements of the patient's eye is received. ... Carl Zeiss Meditec Inc

Medical apparatus

A medical apparatus includes a control device, a motion sensor, via which a motion value is determinable, a position sensor, via which an angular position in space is detectable, and a time measuring device, via which a time interval is determinable. The control device is embodied in such a way that a switch-off signal is producible if, during the entire time interval, the motion value remains below a threshold and, at the same time, the position sensor detects an inclination angle relative to a repository plane that lies in a defined repository angle range.. ... Carl Zeiss Meditec Inc

Ophthalmological laser therapy device and method for calibration

An ophthalmological laser treatment device including a laser system, an examination system for collecting information on the structure of the eye, a positioning system for controlling a therapy laser beam and electromagnetic or mechanical examination waves and a patient interface. The invention further relates to a calibration method and to a treatment method. ... Carl Zeiss Meditec Inc

Eye surgery system

An eye surgery system 1 comprises microscopy optics 3 and an oct device 5 to generate a light-optical image and an oct image of an eye fundus 11, a controller 29 and a visualization system 13, 41, 83. The controller comprises a data interface 97 for receiving a preoperative oct image and may control the visualization system to display a representation of the received preoperative oct image. ... Carl Zeiss Meditec Inc

Evaluation of optical coherence tomographic data prior to segmentation

An efficient method of evaluating the level of contrast of an oct dataset is presented. The method develops a metric to segregate useful and not-so-useful data in one or more oct b-scans, in order to reduce spurious subsequent analyses of the data by downstream segmentation algorithms. ... Carl Zeiss Meditec Inc

Control device for a phacoemulsification system and phacoemulsification system comprising such a control device

A control apparatus for a phacoemulsification system is disclosed. The control apparatus is configured to supply electrical energy to an actuator for a phaco needle during a plurality of time intervals, wherein the time intervals includes a first time interval, in which electrical energy for pulses with a constant maximum amplitude is supplied, a second time interval following the first time interval, wherein electrical energy with a value equal to zero is supplied, and a third time interval following the second time interval, wherein the third time interval has a first time duration in which electrical energy for pulses which have a lower constant amplitude than the maximum amplitude during the first time interval is supplied.. ... Carl Zeiss Meditec Inc

Systems and methods for sub-aperture based aberration measurement and correction in interferometric imaging

Systems and methods for sub-aperture correlation based wavefront measurement in a thick sample and correction as a post processing technique for interferometric imaging to achieve near diffraction limited resolution are described. Theory, simulation and experimental results are presented for the case of full field interference microscopy. ... Carl Zeiss Meditec Inc

01/25/18 / #20180020912

Optical coherence tomography for measurement on the retina

An optical coherence tomograph that provides wavelength tunable source radiation and an illumination and measurement beam path, a dividing element that divides source radiation into illumination radiation and reference radiation, and collects measurement radiation. The illumination and measurement beam path has scanner. ... Carl Zeiss Meditec Inc

01/18/18 / #20180014728

Acquisition and analysis techniques for improved outcomes in optical coherence tomography angiography

Methods for improved acquisition and processing of optical coherence tomography (oct) angiography data are presented. One embodiment involves improving the acquisition of the data by evaluating the quality of different portions of the data to identify sections having non-uniform acquisition parameters or non-uniformities due to opacities in the eye such as floaters. ... Carl Zeiss Meditec Inc

01/18/18 / #20180014727

Method and apparatus for reducing scattered light in broad-line fundus imaging

Methods and apparatuses for fundus imaging are presented that use sequential selective illumination patterns to suppress unwanted reflections, scattering and haze from various optical components of a fundus-viewing instrument. This is particularly the case with those unwanted reflections produced by the objective lens contained within said instrument.. ... Carl Zeiss Meditec Inc

01/18/18 / #20180014725

Systems and methods for improved anterior segment oct imaging

Various methods and systems for improved anterior segment optical coherence tomography (oct) imaging are described. One example method includes collecting a set of oct data of the cornea of the eye; segmenting the set of oct data to identify one or more corneal layers; fitting a two-dimensional model of corneal surfaces to the one or more corneal layers; determining motion-correction parameters by minimizing error between the one or more corneal layers and the two-dimensional model of the corneal surfaces; and creating a motion-corrected corneal image dataset from the set of oct data using the motion-correction parameters. ... Carl Zeiss Meditec Inc

12/07/17 / #20170351007

Optical element and method of making an optical element

A method for producing an optical element having a main body with a first side surface, which has a first optical coating, and at least one second side surface, which is not plane-parallel to the first side surface and has a second optical coating, is proposed. The method includes the steps of: determining the stress induced in the optical element by the first optical coating of the first side surface; determining a counter-stress, so that the resultant overall stress induced in the optical element is as small as possible; determining the second optical coating while taking into account the determined counter-stress and the optical parameters of the second optical coating; applying the first optical coating on the first side surface; and, applying the second optical coating on the at least one second side surface.. ... Carl Zeiss Meditec Inc

11/30/17 / #20170340483

Systems for short pulse laser eye surgery

A system for short pulse laser eye surgery and a short pulse laser system, in which a beam guidance device passes through a corresponding articulated arm, and through an applicator head and a microscope head of the system, which is movable in a three-dimensional volume both independently of one another as well as connected to each other. The system also includes, an easy-to-use patient interface with a one-piece contact element, a computer program product for methods of the incision guidance and sequentially operating referencing methods with patient interfaces containing markings.. ... Carl Zeiss Meditec Inc

11/30/17 / #20170340201

Device and method for fixing a relative geometric position of an eye

A device and a method for fixing a relative geometric position of an eye with respect to an ophthalmological diagnosis and/or therapy system. A device having a container with upper edge designed to produce a mechanically fixed connection between the container and the ophthalmological diagnosis and/or therapy system, and a lower edge which can be placed with a form fit onto the eye, and a clamping mechanism for producing a force-fit connection of the container to the eye, wherein the clamping mechanism has a movable connection to the container is a fixed rotation point or a fixed rotation axis in a jacket area of the container, and by a corresponding method.. ... Carl Zeiss Meditec Inc

11/16/17 / #presented herein is an optical filter system for visible light, which has a first average transmittance t1 between a limit wavelength λg and a wavelength of 700 nm and a second average transmittance t2 between a wavelength of 380 nm and the limit wavelength λg. in this case: 410 nm<λg<520 nm and 0.05

Carl Zeiss Meditec Ag

. . ... Carl Zeiss Meditec Inc

11/16/17 / #20170332065

System for the stereoscopic visualization of an object region

Presented herein are methods and systems for visualizing an object region. The system including an electronic image capturing device, comprising an optical assembly, which provides a first optical channel for a first imaging beam path imaging the object region on a first sensor area of the image capturing device and a second optical channel for a second imaging beam path imaging the object region on a second sensor area of the image capturing device and which contains a microscope main objective system, through which the first imaging beam path and the second imaging beam path pass, comprising a first image producing device for the visualization of the object region for a first observer, to whom a first image of the object region, captured on the first sensor area, and a second image of the object region, captured on the second sensor area, are suppliable, and comprising a second image producing device for visualizing the object region for a second observer.. ... Carl Zeiss Meditec Inc

10/12/17 / #20170290657

Multifocal intraocular lens with extended depth of field

Multifocal intraocular lens with extended depth of field that comprises, in at least one of the surfaces (2), a small zone with a multifocal profile with a defined optical axis (3) and, in the peripheral region and coaxial to the multifocal zone, a ring-shaped opaque mask (1) that partially or totally block light to produce a small aperture effect and, therefore, the multifocal profile has a radius equal or larger than the internal radius of the mask (1), and there is at least one transition between focal zones or one diffractive step inside the internal radius of the mask (1).. . ... Carl Zeiss Meditec Inc

10/12/17 / #20170290505

Visual field measuring device and system

The invention relates to mobile computer devices, front-mounted optical systems and computer program products allowing perimetry measurement.. . ... Carl Zeiss Meditec Inc

10/05/17 / #20170281335

Intraocular lens with single lens telescope integrated in the optical part thereof

An intraocular lens is provided. The intraocular lens includes an optical part and an adjoining haptic part. ... Carl Zeiss Meditec Inc

09/21/17 / #20170266047

Creating cuts in a transparent material using optical radiation

A method for creating cuts in a transparent material using optical radiation, the optical radiation being focused onto the material in a focal point and the focal point being shifted along a curve: a simple or double harmonic curve is used when seen at a right angle to a main direction of incidence of the radiation and preferably successively traveled curves do not lie on top of each other.. . ... Carl Zeiss Meditec Inc

09/14/17 / #20170258321

User interface for efficiently displaying relevant oct imaging data

The present invention is an oct imaging system user interface for efficiently providing relevant image displays to the user. These displays are used during image acquisition to align patients and verify acquisition image quality. ... Carl Zeiss Meditec Inc

08/31/17 / #20170245755

System for optical coherence tomography, comprising a zoomable kepler system

The invention relates to an optical system for examining an eye by means of optical coherence tomography. The oct system is designed in such a way that at least a first and a second state of the optical system can be selectively set by controlling the variable optical unit. ... Carl Zeiss Meditec Inc

08/31/17 / #20170245752

Systems and methods for improved visual field testing

Systems and methods for performing a visual field test of a patient are described. One example method for performing the visual field test of the patient using a visual field testing device having a refractive correction element, a patient support, and a motor operably attached to one of the refractive correction element or the patient support includes positioning the patient's head relative to the device using the patient support. ... Carl Zeiss Meditec Inc

08/24/17 / #20170240195

Carrying arrangement for carrying a medical apparatus

Carrying arrangement for carrying apparatuses, in particular medical apparatuses, having a base carrier on which at least three roller elements are arranged in order to move the carrying arrangement with respect to a floor surface. The roller elements are each rotatable about first axes of rotation (d). ... Carl Zeiss Meditec Inc

08/17/17 / #20170231488

Self-referenced optical coherence tomography

Systems and methods that use interference signal from a sample tissue (e.g. Retina) obtained in a self-referenced manner to obtain one or more characteristics about the sample tissue, such as thickness and intensity information, are discussed in the present disclosure. ... Carl Zeiss Meditec Inc

08/10/17 / #20170228521

Report driven workflow for ophthalmic image data acquisition

An improved workflow for acquiring image data of the eye of a patient is described. The workflow can be used with any ophthalmic diagnostic devices including an optical coherence tomography (oct) device. ... Carl Zeiss Meditec Inc

08/10/17 / #20170224208

Optical coherence tomography for performing measurements on the retina

An optical coherence tomograph includes a wavelength tunable illuminating device, an illumination and measurement beam path with a dividing element and a scanner and a front optical unit and a reference beam path, a detection beam path and a flat panel detector. A beam splitter conducts the separated measurement radiation to the detection beam path and an optical element acts only on the illumination radiation. ... Carl Zeiss Meditec Inc

08/03/17 / #20170216096

Device and method for vitreous humor surgery

A device and a method for the femtosecond laser surgery of tissue, especially in the vitreous humor of the eye. The device includes an ultrashort pulse laser with pulse widths in the range of approximately 10 fs-1 ps, especially approximately 300 fs, pulse energies in the range of approximately 5 nj-5 μj, especially approximately 1-2 μj and pulse repetition rates of approximately 10 khz-10 mhz, especially 500 khz. ... Carl Zeiss Meditec Inc

08/03/17 / #20170216093

Ophthalmosurgical system

The invention is directed to an ophthalmosurgical system which includes a console for accommodating an irrigation fluid vessel containing irrigation fluid and a cassette, insertable into the console, for directing the irrigation fluid to a surgical instrument for an eye to be treated. An irrigation fluid flow path leads from the irrigation fluid vessel to the cassette and to the surgical instrument. ... Carl Zeiss Meditec Inc

08/03/17 / #20170216091

Method for eye surgical procedure

A planning device for generating control data for a treatment apparatus, which by application 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 application of a laser device generates at least one cut surface in the cornea, and to a corresponding method for eye surgery. ... Carl Zeiss Meditec Inc

08/03/17 / #20170215982

Weight module for a stand base for a surgical microscope

The stand base is for a surgical microscope. The stand base is for setting up on a floor configured as a planar surface and includes at least a first weight module; a base body defining an underside and accommodating the first weight module; a support arrangement connected to the base body and supporting the stand base with at least three support points in contact engagement with the floor to permit setting up the stand base; the support points conjointly defining a support plane whereat the support points are in contact engagement with the floor; the underside of the base body facing toward the support plane; an ancillary body; the base body having a receiving arrangement in the underside for releasably accommodating the ancillary body; and, the underside of the base body and the support plane conjointly defining a smallest spacing therebetween which is greater than 10 cm.. ... Carl Zeiss Meditec Inc

07/27/17 / #20170209042

Surgical system having an oct device

A system for performing a surgical procedure includes an oct unit for scanning an object region volume with an oct scanning beam and a control unit for setting the position of the object region volume. A surgical instrument having an effective section is arrangeable in an object region of the object region volume and is localizable in the object region volume with the oct unit. ... Carl Zeiss Meditec Inc

07/13/17 / #20170198856

Stand and method for torque compensation

A stand, for example, for mounting a medical instrument, has a first part and second part which is connected to the first part in a rotationally movable manner via a rotary joint and can be moved relative to the first part about an axis of rotation. The stand includes a drive module supported on the first part. ... Carl Zeiss Meditec Inc

07/06/17 / #20170188826

Apparatus for determining and quantifying the staining of ocular structures and method therefor

An apparatus has an image capture sensor which captures a reference image of a retro-illuminated unstained capsule of an eye. After the ocular structure has been stained with a dye for an ophthalmic surgical procedure a second image is captured as a measurement image via the image capture sensor. ... Carl Zeiss Meditec Inc

07/06/17 / #20170188821

Topography module for opthalmological devices with a distance-independent keratometer and method for the use thereof

A module for ophthalmological devices which enables ophthalmological devices to carry out keratometry and topography measurements of the eye. The proposed topography module is provided for ophthalmological devices with a distance-independent keratometer. ... Carl Zeiss Meditec Inc

07/06/17 / #20170188820

Imaging system

Imaging systems are provided allowing examination of different object regions spaced apart in a depth direction by visual microscopy and by optical coherence tomography. An axial field of view and a lateral resolution is varied depending on which object region is examined by the imaging system. ... Carl Zeiss Meditec Inc

07/06/17 / #20170188819

Imaging system

Imaging systems are provided allowing examination of different object regions spaced apart in a depth direction by visual microscopy and by optical coherence tomography. An axial field of view and a lateral resolution is varied depending on which object region is examined by the imaging system. ... Carl Zeiss Meditec Inc

06/29/17 / #20170181624

Flexible, multimodal retina image recording system and measurement system

A fundus camera with an oct measurement module, in which, after the focusing objective, a mirror switches the light to be detected either to the oct measurement module or an image detector. This design also renders it possible to carry out a method for improved focusing in order to improve the recording quality of the individual modalities. ... Carl Zeiss Meditec Inc

06/29/17 / #20170181620

Method for determining corneal astigmatism using optical coherence tomography

A method for detecting refractive errors in the eye that are attributable to a suboptimal surface shape of the front surface and/or rear surface of the cornea. An oct volume scan and/or one or more oct line scans of the front eye section are carried out; using the measured values, the front and rear surface of the cornea are detected by an edge detection process; the topography of the front and rear surface of the cornea are determined; and refractive errors are determined from said topographies.. ... Carl Zeiss Meditec Inc

06/15/17 / #a protection glass adapter for a surgical microscope has a first abutment surface. the first abutment surface can be brought into contact with a corresponding second abutment surface of the microscope. the adapter has a guide opening for receiving a main objective. the guide opening is a truncated cone with a central axis. the greater diameter of the truncated cone is formed toward the first abutment surface. the adapter has a positioning element. the positioning element is rigid and is arranged on the first abutment surface or on the surface of the guide opening.

Carl Zeiss Meditec Ag

. . ... Carl Zeiss Meditec Inc

06/15/17 / #20170165026

Medical apparatus with a medical optical appliance and a holding device and method for operating the medical apparatus

The invention relates to a medical apparatus having a medical optical appliance and a holding device with at least two holding arms which are connected movably to one another with at least one degree of freedom of movement via a joint and with an actuator which is connected to the two holding arms in such a way that a force can be exerted via the actuator between the two holding arms in the direction of the degree of freedom of movement. A control unit comprises a first regulator for outputting a first control signal to the actuator via an adjusting element. ... Carl Zeiss Meditec Inc

06/15/17 / #20170164828

Method for the optimized prediction of the postoperative anatomical position of an intraocular lens implanted in a pseudophakic eye

Postoperative lens position is predicted on the basis of known measured values, such as the corneal thickness, the depth of the anterior chamber, the eye length, and the distances of the capsular bag equator and/or of the lens haptic from the anterior surface of the lens. In addition, the calculation also takes into account the attitude of the intraocular lens, for which purpose additional parameters of the pseudophakic eye are used that have not previously been taken into consideration. ... Carl Zeiss Meditec Inc

06/08/17 / #20170156583

Ophthalmic surgical apparatus for inserting intraocular lenses in eyes

An ophthalmic surgical apparatus including: a control device; a user interface which, at least intermittently, has data communication with the control device; a first measuring device configured for determining at least one value intraoperatively, the value being characteristic for an eye to be treated by surgery; a second measuring device configured for determining at least one value preoperatively and/or intraoperatively, the value being characteristic for the eye to be treated by surgery, and including a first computing unit which is suitable and intended, using the value determined intraoperatively and the value determined preoperatively and/or intraoperatively, for ascertaining at least one first output value which is characteristic for at least one intraocular lens to be selected, wherein the user interface at least preferably includes an output device suitable for outputting the output value or a value derived therefrom.. . ... Carl Zeiss Meditec Inc

05/18/17 / #a method for generating cut surfaces in the cornea of an eye in order to correct ametropia using an apparatus. the method includes providing the apparatus including a laser unit, which focuses pulsed laser radiation into the cornea and moves the focused radiation in the cornea to generate cut surfaces, and a control unit, which controls the laser unit for generating cut surfaces.

Carl Zeiss Meditec Ag

. . ... Carl Zeiss Meditec Inc

05/18/17 / #20170135768

Treatment apparatus for a subretinal injection and method for assisting in a subretinal injection

A treatment apparatus for a subretinal injection into an eye includes a 3d imaging device configured to generate a 3d image of a retina and a choroid of the eye. The apparatus has a planning device for inputting at least one set position for an injection instrument to be used for the injection. ... Carl Zeiss Meditec Inc

05/11/17 / #20170128265

Vitrector having a rotating cutter head

A device for treating eyes, the device having a lance-like housing which extends along a longitudinal direction (l) and can be inserted into an area of the eye to be treated. The device further includes at least one cutter element, which is arranged at least partially inside the housing and is movable relative to the housing. ... Carl Zeiss Meditec Inc

05/11/17 / #20170128262

Ophthalmological device

An ophthalmic instrument for the application of laser radiation in a patient's eye, particularly for the examination and/or surgical laser treatment of the cornea and the lens of the eye, includes a femtosecond laser, an objective and optical assemblies. The optical assemblies are arranged in front of the objective, and selectively vary the focus position in the coordinate direction x,y and z either within the region of the cornea or within the region of the lens of the eye. ... Carl Zeiss Meditec Inc

04/20/17 / #20170105618

Improved frequency-domain interferometric based imaging systems and methods

Systems and methods for improved interferometric imaging are presented. One embodiment is a partial field frequency-domain interferometric imaging system in which a light beam is scanned in two directions across a sample and the light scattered from the object is collected using a spatially resolved detector. ... Carl Zeiss Meditec Inc

03/30/17 / #20170087021

Eye surgical procedure

A planning system for generating control data for a treatment device for eye surgery that creates at least two incision surfaces in the cornea using a laser apparatus is provided. The planning system includes a processor configured to specify the cornea incision surfaces based on data of a refractive correction, the cornea incision surfaces including an lenticule incision and a cap incision, at least one of the cap incision or the lenticule incision being irregularly shaped and having extensions to the surrounding tissue, and generate a control data record for the cornea incision surfaces for purposes of controlling the laser apparatus.. ... Carl Zeiss Meditec Inc

03/30/17 / #20170087020

Eye surgery procedure

A planning apparatus for generating control data for an eye surgery treatment device which creates at least one cut surface in the cornea using a laser device. The planning apparatus includes a calculation tool for determining the at least one cut surface in the cornea. ... Carl Zeiss Meditec Inc

03/23/17 / #20170082847

Surgical microscope having a data unit and method for overlaying images

A surgical system has a surgical microscope with an imaging optical unit and a control unit for setting imaging parameters of the microscope. The system further has an image processing device for overlaying an overlay image stored in the image processing device with an image generated by the microscope. ... Carl Zeiss Meditec Inc

03/09/17 / #20170065172

Surgical microscope

A surgical microscope for imaging structures of an eye includes: a front optical unit, an illumination device which has an illumination-radiation-emitting illumination source and which illuminates the retina of the eye with an illumination spot via an illumination beam path which extends through the front optical unit, a camera and an adjustable camera optical unit disposed upstream thereof, an imaging beam path which extends through the front optical unit and the camera optical unit, and a control device which controls the camera optical unit and sets the latter in such a way that the retina of the eye in the region of the illumination spot is imaged on the camera. The control device varies a focusing state of the camera optical unit and, as a result thereof, records a plurality of images of the retina in the region of the illumination spot, the images being focused in different depth planes, and establishes a refractive value of the eye from these images.. ... Carl Zeiss Meditec Inc

03/02/17 / #20170056244

Device for machining an object by application of laser radiation

A device for machining an object by laser radiation, by photodisruption. The device includes an observation device for imaging the object and a laser scanning device by which the laser radiation is passed over a predetermined sector of the object for scanning the sector. ... Carl Zeiss Meditec Inc

03/02/17 / #20170055825

Functional vision testing using light field displays

Systems and methods for performing visual field testing using light field displays are described. The light field display (201, 202; 801; 504; 601-604; 704; 801), that can correct for the focus and cylindrical refractive error of the subject, can be used to perform a variety of visual field testing strategies by rendering visual stimuli to the eye (203). ... Carl Zeiss Meditec Inc

03/02/17 / #20170055821

Method for visualizing a membrane on a retina of an eye and surgical microscope for performing the method

A method for visualizing a membrane on a retina of an eye includes recording a first image of the retina of the eye, wherein the membrane on the retina of the eye is not stained, recording a second image of the retina of the eye after the membrane on the retina of the eye has been stained, determining a first transformation such that mutually corresponding structures of the retina of the eye are located at mutually corresponding places in the second image and in the first image which was transformed with the first transformation, identifying image regions in the second image, which contain the membrane on the retina, based on the transformed first image and the recorded second image, and displaying the second image such that the identified image regions in the second image are highlighted relative to the surroundings of the identified image regions.. . ... Carl Zeiss Meditec Inc

02/23/17 / #20170049621

Process and system for material removal

An arrangement including an air conveying device and a suction device guiding an air flow across a site for a duration of a process. The direction of air flowing towards the surface and a tangent to the surface at the ablation site intersect at an angle. ... Carl Zeiss Meditec Inc

02/23/17 / #20170049323

Systems and methods for broad line fundus imaging

Systems and methods for broad line fundus imaging (blfi), an imaging approach that is a hybrid between confocal and widefield imaging systems, are presented. These systems and methods are focused on improving the quality and signal of broad line fundus images or imaging methods to create high contrast and high resolution fundus images. ... Carl Zeiss Meditec Inc

02/09/17 / #20170035286

Enhanced vessel characterization in optical coherence tomograogphy angiography

Systems and methods to improve the visualization of vasculature in oct angiography data are presented. In one embodiment, vessels having a particular orientation relative to one or more reference surfaces are highlighted. ... Carl Zeiss Meditec Inc

02/02/17 / #20170032564

User interface for efficiently displaying relevant oct imaging data

The present invention is an oct imaging system user interface for efficiently providing relevant image displays to the user. These displays are used during image acquisition to align patients and verify acquisition image quality. ... Carl Zeiss Meditec Inc

02/02/17 / #20170027748

Laser treatment device

An adapter for coupling a laser treatment device to an object for treatment. The adapter has an input side, which may be fixed relative to the laser treatment device, by a locking mechanism and which may be fixed to the object, for alignment of the object relative to the laser treatment device. ... Carl Zeiss Meditec Inc

01/26/17 / #20170020733

Method and apparatus for precision working of material

A method for precise working of material, particularly organic tissue, comprises the step of providing laser pulses with a pulse length between 50 fs and 1 ps and with a pulse frequency from 50 khz to 1 mhz and with a wavelength between 600 and 2000 nm for acting on the material to be worked. Apparatus, in accordance with the invention, for precise working of material, particularly organic tissue comprising a pulsed laser, wherein the laser has a pulse length between 50 fs and 1 ps and with a pulse frequency of from 50 khz to 1 mhz is also described.. ... Carl Zeiss Meditec Inc

01/12/17 / #20170007446

Method and device for measuring the position of an eye

A device for measuring the position of an eye of a mammal. To determine a positional change of the eye between two time points, the device comprises: at least one optical coherence tomograph for generating images of at least a part of the retina at the two time points and for emitting corresponding image data and an image processing device which is designed to compare the image data assigned to the two time points and to determine an angle of rotation between the images, wherein the image processing device is additionally designed to output the angle of rotation as information about a cyclotorsion of the eye between the two time points.. ... Carl Zeiss Meditec Inc

01/12/17 / #20170007117

Apparatus for determining ametropia of an eye

An apparatus for determining ametropia of an eye includes an optical assembly with a light source, a detector, a plurality of optical elements and at least one stray light stop and a controller. An illumination beam path is provided between the light source and an optical interface in order to allow illumination light generated by the light source to emerge from the optical interface. ... Carl Zeiss Meditec Inc

01/12/17 / #20170007114

Method for determining the power of an intraocular lens

A method for calculating the power of an intraocular lens including measuring an axial separation between the front surface of the cornea and the plane of the iris root; and determining the power of the intraocular lens using the measured axial separation together with other measured parameters and empirically determined lens constants.. . ... Carl Zeiss Meditec Inc








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