Abstract: An illumination system for producing an illumination pattern for measuring the cornea of an eye and, in particular, for determining the topography thereof and in so doing facilitating distance-independent measurements. The illumination system according to the invention for determining the topography of the cornea of an eye includes an illumination unit and a unit for producing an illumination pattern, wherein the illumination unit includes a plurality of illumination modules. A lens array which produces a spatially distributed, collimated illumination pattern is used as a unit for producing an illumination pattern. The illumination system produces an illumination pattern, by which the topography of the cornea of an eye can be determined. Here, the illumination system is designed as a compact module, and so it can be easily combined with other measurement systems, without colliding with the beam paths thereof.

Abstract: A method for correcting a shading in a digital image of a three-dimensional observation object obtained by at least one image sensor of an optical observation device is provided. The three-dimensional observation object is illuminated by illumination light and an intensity distribution, and an inhomogeneity in an image brightness is present in the digital image of the three-dimensional observation object. The method includes ascertaining a topography of the three-dimensional observation object, correcting the inhomogeneity in the image brightness of the digital image based on the topography of the three-dimensional observation object and the intensity distribution of the illumination light. In addition, an optical observation system is provided to perform the method.

Abstract: 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. Embodiments related to improved pupil splitting, artifact removal, reflex minimization, adaptable field of view, instrument alignment and illumination details are considered.

Abstract: The present invention relates to a filter set, to a fluorescence observation system and to a method for simultaneously observing fluorescent and non-fluorescent regions of an object. The filter set comprises an illumination filter and an observation filter. The illumination filter is configured such that it efficiently transmits visible light having short wavelengths and efficiently blocks light having a long wavelength. The observation filter is configured such that it efficiently blocks visible light having short wavelengths and efficiently transmits light having a long wavelength. The illumination filter and the observation filter are configured such that the product of the transmittance of the illumination filter TI(?) and the transmittance of the observation filter TO(?) are very constant over a high proportion of the visible wavelength range.

Abstract: A computer program product for controlling a laser-assisted eye treatment, configured to encode a system controller with a routine for planning the eye treatment, invention further relates to a laser-assisted eye treatment system including a laser treatment unit and a system controller, to a method for generating control data for a laser-assisted eye treatment system, to a planning method for a laser-assisted eye treatment and to an eye treatment method using a laser beam for treating a patient's eye. The invention provides systems and methods for a fast laser-assisted eye treatment of a patient's eye which improve the security and minimize the risk of a non-optimal eye treatment and enable sale eye treatment planning and a shortening of the critical phase of the eye treatment. Encoding a system controller by a routine for planning the eye treatment is strictly based on an anatomy of a patient's eye.

Abstract: A device and a method for producing control data, which are designed to control a laser machining device to surgically correct ametropia of an eye in which, in order to define a space in the cornea, defines a front cutting surface, a rear cutting surface and an edge section, which are to be produced as cutting surfaces in the cornea. The rear cutting surface has a non-circular, oval edge lying in a plane, the edge section connecting the edge to the front cutting surface and the edge section being designed as a non-rotationally symmetrical cylinder or truncated cone, the base of which is the edge.

Abstract: A system for producing control data for controlling a laser so as to produce at least one cutting surface in a cornea of an eye of a patient includes a non-transitory computer readable medium having stored thereon instructions for establishing a geometry of a lenticule cut, establishing a geometry of a cap cut running substantially parallel to a surface of the cornea, establishing a geometry of an external opening cut arranged outside an optical zone of the eye of the patient, and establishing a geometry of an access cut to connect the cap cut to the external opening cut.

Abstract: A mount for an optical apparatus having an image recording unit and an image rendering unit includes a first securing device for the recording unit, a second securing device for the rendering unit, and a connecting rail interconnecting the securing devices. The connecting rail is arranged so as to be displaceable in the y-direction in relation to the second securing device via a linear actuator. The first securing device includes a rotation device arranged so as to be rotatable about an axis of rotation extending in the x-direction. The mount includes a controller which is configured to displace the connecting rail in the y-direction in relation to the second securing device via the actuator when the first securing device is rotated about the tilt axis such that the distance between the focal point and the second securing device is kept constant within a certain interval.

Abstract: A therapeutic method can include receiving an initial astigmatism condition of an eye; receiving a target final astigmatism condition of the eye; generating, based on the initial and target final astigmatism conditions, an eye incision pattern by iterating through a plurality of potential corrective combinations; and cutting the eye based on the eye incision pattern. Each of the potential corrective combinations can be defined by one or more of: an intraocular lens selected from a plurality of intraocular lens options, an access incision selected from a plurality of access incision options, and an arcuate incision selected from a plurality of arcuate incision options.

Abstract: A planning system for generating control data for a treatment apparatus which creates at least one cut surface in the cornea using a laser device, and a treatment apparatus which comprises a planning system of the aforementioned type. The invention also relates to a method of generating control data for a treatment apparatus which creates at least one cut surface in the cornea using a laser device, and to a corresponding method of eye surgery. The planning system comprises a calculation means for defining the cut surfaces of the cornea, wherein the calculation means determines the cornea cuts so that the cut surfaces isolate a lenticule, which is treated according to the planned refraction correction after removal from the cornea, so that the planned refraction correction occurs after the insertion into the cornea of the recipient.

Abstract: A device and method of compensating for the temperature dependence of a facet lens used for determining the topography of an eye. According to the invention, temperature sensors are present for determining the temperature of the facet lens. In addition, the temperature dependence of the beam angles of the beam bundles is stored in a control and evaluation unit, which, in addition to the temperature of the facet lens transmitted by the temperature sensors, are taken into account by the control and evaluation unit when evaluating the recordings of the image recording unit. The device and method are described in the context of facet lenses that are used to determine the topography of an eye. However, in principle, they are usable wherever an existing temperature dependence, in particular of optical components, should be compensated for.

Abstract: An arrangement for adapting the focal plane of an optical system to a non-planar, in particular spherical or spheroidal object, wherein the optical system has a positive total refractive power and generates a real image. The optical system also comprises an optical element with a negative refractive power. Principally useful in all technical fields with the corresponding requirements relating to a curved focal plane, the arrangement is useful in ophthalmologic devices. The eye which is to be examined is the spherical or spheroidal object for example, the front of the eye which has radii of between 5 and 10 mm of small dimensions.

Abstract: A system for processing a portion in a processing volume of a transparent material by application of focused radiation including a device for generating and an optical system for focusing radiation, with a device for changing the position of the focus of the radiation and a control device. This system performs a slow scanning movement of the focus and an independent fast scanning movement of the focus which section can be moved by the slow scanning movement in the entire processing volume in an arbitrary direction; as well as by a system into which a scan pattern is encoded, with scanning movement including at least one lateral base component in the x- and/or y-direction, which is superimposed by components with synchronous change-of-direction-movements in the z-direction and in x-direction and/or y-direction. The invention also includes corresponding methods, a control program product and a planning unit.

Abstract: The invention relates to a method for recording and providing digital images using a digital surgical microscope system. The method includes recording magnified video image of an object region by an image sensor in the image recording unit. The method also includes displaying, on a digital display unit, in at least certain regions, the image recorded by the image sensor. A magnification of the image displayed on the digital display unit is adjusted by a limit value of the magnification. The limit value of the magnification is set using situative parameters to determine an optimum magnification.

Abstract: A method for compensating the artifacts generated by moving measurement objects in measurement signals of swept-source OCT systems by moving measurement objects. Signal reconstruction is implemented without the aid of additional reference signals in respect of the movement of the measurement object and only by way of especially adapted algorithms. Example methods relate firstly to the especially adapted, Fourier transform-based algorithms for processing the captured measurement signals and secondly to the measurement signals to be captured, in particular to the optical coherence interferometry-based measurement systems used for the production thereof. Although the proposed method is provided for applications in ophthalmology in particular, it can be used, in principle, wherever signals reflected by curved surfaces or backscattered from structures are analyzed.