A61F9/00836

LASER SURGICAL SYSTEM FOR S-CURVE INCISION

A laser surgical system comprises a laser source, scanners, delivery optics, and a computer. The laser source generates a beam of femtosecond laser pulses. The scanners direct focus spots of the beam towards points of a cornea. The delivery optics focuses the focus spots at the points of the cornea. The computer creates an incision in the cornea by instructing the optics and scanners to: direct and focus the focus spots from a posterior corneal surface, through a convex curve and a concave curve, to an anterior corneal surface to form an S-curve incision with a posterior end and an anterior end. The S-curve incision has a substantially non-planar rectangular shape with a longer side that extends from the posterior end to the anterior end and defines a longer direction. A cross-section of the incision in the longer direction exhibits the convex curve and the concave curve.

Ophthalmological apparatus for the breakdown of eye tissue

An ophthalmological apparatus includes a handle for manually holding and applying the ophthalmological apparatus, fastening abilities for fixing the ophthalmological apparatus at an eye, a light source, and a light projector for the focused projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue. The ophthalmological apparatus also includes a movement driver for moving the light projector. The movement of the light projector and therefore that of the focal point with the assistance of the movement driver permits a dimensioning of the optical projection system of the light projector which is substantially smaller than in the case of an ophthalmological apparatus where the focal point is moved exclusively by an optical projection system.

Apparatus for patterned plasma-mediated laser ophthalmic surgery

A system for ophthalmic surgery on an eye includes: a pulsed laser which produces a treatment beam; an OCT imaging assembly capable of creating a continuous depth profile of the eye; an optical scanning system configured to position a focal zone of the treatment beam to a targeted location in three dimensions in one or more floaters in the posterior pole. The system also includes one or more controllers programmed to automatically scan tissues of the patient's eye with the imaging assembly; identify one or more boundaries of the one or more floaters based at least in part on the image data; iii. identify one or more treatment regions based upon the boundaries; and operate the optical scanning system with the pulsed laser to produce a treatment beam directed in a pattern based on the one or more treatment regions.

PERSONALIZATION OF EXCIMER LASER FIBERS
20220183887 · 2022-06-16 ·

The invention provides personalized laser probes for use in laser systems, wherein each laser probe includes one or more characteristics tailored to a given user to thereby improve performance of and outcome of a laser treatment procedure.

OPHTHALMIC SURGICAL MICROSCOPE WITH STROBOSCOPIC ILLUMINATION

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.

Treatment apparatus for operatively correcting defective vision of an eye, method for generating control data therefor, and method for operatively correcting defective vision of an eye

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.

LASIK FLAP CUTTING PATTERNS INCLUDING INTRASTROMAL POCKET FOR BUBBLE MANAGEMENT

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.

System and method for laser corneal incisions for keratoplasty procedures
11344450 · 2022-05-31 · ·

A first image of the eye is generated when the cornea of the eye is exposed to a gas. The cornea is covered with an optic of a patient interface. A second image of the eye with the patient interface over the cornea is generated. In this second image, the patient interface distorts the second image of the eye. One or more of a position or an orientation of the eye is determined in response to the first image and the second image when the patient interface has been placed over the cornea.

Corneal prosthesis and method of penetrating keratoplasty
11324586 · 2022-05-10 ·

A prosthesis configured to be implanted in a cornea of an eye, to interconnect host tissue with a corneal graft, is disclosed herein. The prosthesis can include a body and a slit. The body can extend between first and second ends. The body can define a section of maximum width between the ends. The body can narrow at the ends and converge to first and second tips. The slit can be defined in the body at the first end and can have a width. A portion of the body between the second tip and the section of maximum width can have a width that is less than the width of the slit, whereby the portion of the body between the second tip and the section of maximum width is receivable in the slit.

System for performing eye surgery with simultaneous display of graphical information for flap and ablation

The disclosure relates to systems and methods for performing eye surgery in which a single image that simultaneously presents a graphical representation of a planned or actual flap location superimposed with a graphical representation of a planned or actual area of ablation is used.