An ophthalmological device for surgical treatment of a cornea comprises a laser source, a focusing optical module, a scanner system, and an electronic circuit configured to control the scanner system to move the focus of the pulsed laser beam generated by the laser source to cut inside the cornea a lenticule and a venting channel which comprises an opening incision in a peripheral area of an exterior surface of the cornea, outside a perimeter of the lenticule from a top view perspective onto the cornea, and the venting channel connecting fluidically the posterior lenticule surface and/or the anterior lenticule surface to the opening incision, to enable venting of gas, produced by cutting the lenticule inside the cornea, through the opening incision to the exterior of the cornea.

An example antimicrobial treatment system includes an illumination system configured to deliver illumination that activates a photosensitizing agent applied to a cornea. The system also includes a controller configured to control the illumination system. The controller detects an ulcerative region on a cornea and causes the illumination system to deliver the illumination to activate the photosensitizing agent applied to the ulcerative region according to a set of parameters for treating the ulcerative region. The illumination is restricted to the ulcerative region, and activation of the photosensitizing agent in the ulcerative region generates an antimicrobial effect.

An ophthalmological device for treatment of a cornea comprises a laser source, a focusing optical module, a scanner system, and an electronic circuit. The electronic circuit is configured to control the scanner system to move the focal spot of the pulsed laser beam to generate a void volume inside the cornea by ablating cornea tissue with partially overlapping focal spots, whereby two or more focal spots partially overlap in direction of each of three dimensions of the void volume, and to move the focal spot inside the cornea to cut in the cornea a venting channel which connects fluidically the void volume to an escape area and enables venting of gas from the void volume through the venting channel to the escape area.

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. The system includes a controller that controls the ophthalmologic therapy system. The controller is encoded with a scan pattern. The scan pattern includes adjacent strokes with each adjacent stroke having an angle of inclination (α) to the beam axis; and the angle of inclination (α) of the strokes to the beam axis is always larger than or equal to the focal angle (φ) of the focused radiation.

An ophthalmic system for visualization of interactions between ocular matter and a probe tip of a probe within or in contact with an ocular space of an eye includes: a visualization tool having a field of view that includes at least a portion of the ocular space of the eye where the probe tip interfaces with the ocular matter; and a stroboscopic illumination source configured to stroboscopically illuminate at least the portion of the field of view at an illumination frequency. A method of operating a stroboscopic illumination source during an ophthalmic surgical procedure includes: identifying an illumination source type of the stroboscopic illumination source; identifying a probe type; identifying a first procedure trigger; and operating the stroboscopic illumination source based on the probe type, the illumination source type, and the first procedure trigger.

In certain embodiments, an ophthalmic surgical system for adjusting a dimension of an eye includes a camera and a computer. The camera generates a surgical image of the eye in contact with a patient interface, which distorts the cornea. The surgical image includes the pupil with a real pupil diameter. The computer accesses a diagnostic image of the eye with the cornea having a natural curvature. The natural curvature affects the real pupil diameter to yield a diagnostic pupil diameter of the diagnostic image that is different from the real pupil diameter of the surgical image. The computer adjusts the real pupil diameter of the surgical image using an eye model to yield a refracted pupil diameter that takes into account the curvature of the cornea and uses the refracted pupil diameter to compensate for the difference between the diagnostic and real pupil diameters.

In certain embodiments, an ophthalmic surgical system for creating a lenticule in the cornea of an eye comprises controllable components (including a laser source and a scanner) and a computer. The laser source generates a laser beam, and the scanner directs the focal point of the laser beam. The computer determines a lenticule design for the lenticule having a posterior side and an anterior side. Either the posterior side or the anterior side has a central portion and a peripheral portion. The lenticule design is formed using a major lenslet and a minor lenslet, where the major lenslet is designed to correct to emmetropia. The lenticule design is formed by subtracting the minor lenslet from the major lenslet, where the subtraction of the minor lenslet yields the central portion. The computer instructs one or more of the controllable components to create the lenticule.

The invention relates to a method for controlling an eye surgical laser (12) of a treatment apparatus (10) for the separation of a volume body (14) with a predefined posterior interface (24) and a predefined anterior interface (26) from a human or animal cornea (16). The method includes controlling the laser (12) by means of a control device (18) of the treatment apparatus (10) such that it emits pulsed laser pulses in a shot sequence in a predefined pattern into the cornea (16), wherein the interfaces of the volume body (14) to be separated are defined by the predefined pattern and the interfaces are generated by means of an interaction of the individual laser pulses with the cornea (16) by the generation of a plurality of cavitation bubbles, wherein an arc length of the anterior interface (26) in radial direction and an arc length of the posterior interface (24) in radial direction are generated of equal length in all radial directions by means of at least one indentation (28) in one of the interfaces.

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.

A method implemented in an ophthalmic surgical laser system that employs a resonant scanner, scan line rotator, and XY- and Z-scanners, for forming a corneal flap in a patient's eye with improved bubble management during each step of the flap creation process. A pocket cut is formed first below bed level, followed by the bed connected to the pocket cut, then by a side cut extending from the bed to the anterior corneal surface. The pocket cut includes a pocket region located below the bed level and a ramp region connecting the pocket region to the bed. The bed is formed by a hinge cut and a first ring cut at lower laser energies, followed by a bed cut and then a second ring cut, which ensures that any location in the flap bed is cut twice to minimize tissue adhesion. The side cut is formed by multiple side-cut layers at different depths which are joined together. All cuts are formed by scanning a laser scan line generated by the resonant scanner.