The present application relates generally to a method for vision correction using corneal collagen crosslinking (CCXL), in which the physician is able to precisely control the pattern of ultraviolet (UV) energy delivered to the cornea, by means of a programmable masking array placed between the UV source and the cornea. A CCXL LCD masked is used to create various patterns of on and off pixels. The physician is able to control the degree of polarization of the LCD pixels, thereby allowing the physician to create various patterns of UV irradiation and thus, varying levels of CCXL.

A method of imaging an object includes obtaining an image data set from a raster scan. The image data set has a plurality of data points, each data point having an associated location and intensity; generating a reduced data set by selectively removing one or more data points from the image data set based upon an assigned probability of retaining the one or more data points in the data set, the assigned probability being a function of the intensity of a data point; generating a triangulation graph as a planar subdivision having faces that are triangles, the vertices of which are the data points and the edges of which are adjacent vertices; and segmenting the triangulated data set by finding a path with lowest cost between that vertex and every other vertex, wherein the cost is a function of the respective intensity of the vertices.

The present invention relates to an apparatus for cutting-out including a device for treating a L.A.S.E.R. beam generated by a femtosecond laser (1), and positioned downstream from said femtosecond laser, the treatment device comprising: a shaping system (3) positioned on the trajectory of said beam, for modulating the phase of the wave front of the L.A.S.E.R. beam according to a modulation set value calculated for distributing the energy of the L.A.S.E.R. beam in at least two impact points forming a pattern in its focal plane, an optical focusing system (5) downstream from the shaping system, the optical focusing system comprising a concentrator module for focusing the phase-modulated L.A.S.E.R. beam in a focusing plane and a depth-positioning module for displacing the focusing plane into a plurality of cutting-out planes, a sweeping optical scanner (4) positioned between the concentrator module and the depth-positioning module for displacing the pattern in the cutting-out plane in a plurality of positions.

A device and a method for using laser energy for treatment of tissue, which can include generating short bursts of energy at a range of pulse repetition rates. The method comprises selective surface and/or three-dimensional interactions for therapeutic use and/or to modify or remove tissue from targets. The device and method can subsurface disruptions in tissue at selected depths and densities.

The present invention relates to an ophthalmic treatment apparatus and to a beam control method therefor. The ophthalmic treatment apparatus according to the present invention comprises: a beam generating unit for generating beams having different pulse energies; a bubble sensing unit for sensing whether or not bubbles have been generated, as well as the amount of generated bubbles, on the basis of the pulse energy of the beam generated by the beam generating unit and radiated onto the treatment region of an eyeball; and a control unit for controlling the operation of the beam generating unit such that the pulse energy of the beam generated by the beam generating unit can be adjusted in accordance with the signal from the bubble sensing unit.

Intraocular pressure in an eye is reduced by delivering each of a high resolution optical coherence tomography (OCT) beam and a high resolution laser beam through the cornea, and the anterior chamber into the irido-corneal angle along an angled beam path. The OCT beam provides OCT imaging for diagnostic purposes and surgery planning and monitoring, while the laser beam is configured to modify tissue. A volume of ocular tissue within an outflow pathway in the irido-corneal angle is modified to reduce a pathway resistance present in one or more of the trabecular meshwork, the Schlemm's canal, and the one or more collector channels by applying the laser beam to ocular tissue defining the volume to thereby cause photo-disruptive interaction with the ocular tissue to reduce the pathway resistance or create a new outflow pathway.

A first optical subsystem includes a window with a refractive index n.sub.w and an exit lens having a refractive index n.sub.x. The exit lens is configured to couple to the window to define a first optical axis extending through the window and the exit lens. A second optical subsystem is configured to output a light beam. The light beam is directed to be incident at a convex surface of the exit lens along a second optical axis at an angle that is offset from the first optical axis. The window is configured to detachably couple to the cornea of the eye such that the first optical axis is generally aligned with a direction of view of the eye. The respective refractive indices n.sub.w and n.sub.x are configured to direct the light beam incident at the convex surface of the exit lens through the cornea of the eye toward the irido-corneal angle.

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. The device includes the observation device with a first lens for imaging the object; the laser scanning device with a second lens, through which the laser radiation is guided, in which both lenses with regard to the dimension of the regions to be produced in the images and/or with regard to their focal intercept are different from each other. The device alternately images the respective region of the object in a first operating mode by the first lens and in a second operating mode by the second lens. It is thus possible to use in both operating modes a lens adapted to the intended imaging purpose.

A scanning device for focusing a beam of rays in defined regions of a defined volume, comprising an input optics wherein the beam of rays penetrates first, having at least one first optical element; a focusing optics for focusing the beam of rays exiting from the input optics; and a deflecting device arranged between the first optical element and the focusing optics, for deflecting the beam of rays after it has passed through the first optical element, based on a position of the focus to be adjusted in lateral direction. In order to adjust the position of the focus of the beam of rays in the direction of the beam of rays, and optical element of the input optics can be displaced relative to the deflecting device.

Systems and methods for localizing intraocular lens and/or existing refractive index patterns, to laser write-patterns, and to refractive index patterns in order to modify the refractive index by application of femtosecond laser pulses. OCT-based confocal detection and sectional image systems are provided for localization purposes, the systems being particularly suitable for the detection of phase patterns in addition to the localization of the IOL. With respect to laser write-patterns, the modification of existing refractive index patterns in the IOL is carried out by destroying existing structures or supplementing existing refractive index patterns.