An ophthalmic surgical device in accordance with various embodiments of the present disclosure comprises an elongate element and a filament. The device may further comprise one or more of a shaft, an actuator, an actuator handle, a shaft handle, a vent, and a filament stop. The device may be used to mechanically push objects, as in retinal detachment repair, gasp objects, as in the removal of a dislocated intraocular lens or an intraocular foreign body, aspirate fluid, and cut materials, such as intraocular fragments.

A vitrectomy probe for treating an eye of a patient, the probe including a body arranged for grasping by a surgeon, and a photodisruption element extending from the body. The photodisruption element includes a needle having a main lumen extending from the body, the needle comprising a port at an end, a fiber cannula within the main lumen, the fiber cannula having a fiber lumen, and an optical fiber within the fiber lumen, the optical fiber being mechanically agitatable within the fiber lumen.

An ophthalmic surgical cutting apparatus for cutting biological material including a handle, an outer tube attached to the handle and having a closed tip, a port formed in a side wall of the outer tube with a cusp formed by two or more intersecting surfaces, and an inner tube slidable within the outer tube and having a longitudinal axis and an open tip. The inner tube is in fluid communication with the handle, and the cusp of the port and the open tip interface during a cutting motion to fracture and cut biological materials and direct cut materials radially inward into the port.

A high-divergence-angle optical fiber apparatus is disclosed that includes a multimode optical fiber having a distal end and a divergence angle . A light-redirecting structure is operably disposed at the distal end and consists of an array of between 1 and 10 layers of fused glass microspheres. The light-redirecting structure defines a divergence angle , wherein 2. A light source system that utilizes the high-divergence-angle optical fiber apparatus is also disclosed.

A surgical apparatus for performing a microsurgery including a cannula having an intraocular portion. The intraocular portion connects to an infusion tube. The intraocular portion includes fenestrations at its distal end. The intraocular portion receives fluid through the infusion tube and dispenses the fluid through the fenestrations lessening the flow at an infusion site in an eye. The surgical apparatus includes a vitreous cutter. The vitreous cutter includes a suction tube at one end and a shaft at another end. The cutting port cuts vitreous into smaller pieces or a laser that liquefies the vitreous. The shaft receives the cut vitreous pieces and the suction tube draws out the cut vitreous pieces from the eye. The surgical apparatus includes a vitreoretinal surgical tool having a vitreoretinal cutter. The vitreoretinal cutter has a scissor-like or forceps-like mechanism. The vitreoretinal cutter holds and/or cuts a membrane in the eye during the microsurgery.

Images of a patient's eye can be imaged and the images processed to detect and track floaters within the patient's eye. The floater detection and tracking can be used to identify characteristics of the floaters as well as possibly perform laser treatment of the floaters.

The present disclosure generally relates to a surgical instrument. The surgical instrument includes a base unit and a probe. The probe is disposed through an opening in a distal end of the base unit. The probe includes a port formed proximate to a distal tip of the probe. The distal tip includes a window, a lumen formed through the probe, and one or more optical fibers disposed in the lumen. The one or more optical fibers project a first laser light for irradiating an area proximate to the port to cut collagen fibers of vitreous material aspirated through the port. The one or more optical fibers further project a second laser light for cauterizing bleeding in an intraocular space of a patient.

In a general aspect, a vitrectomy system is adapted to use photodisruption to rupture eye tissue. In some aspects, a photodisruption-based vitrectomy system includes a laser source configured to generate optical pulses having a pulse energy greater than a threshold energy for causing photodisruption in vitreous humor. The system also includes an optical switching device arranged to receive an output of the laser source, and an optical fiber with multiple cores that is arranged to receive an output of the optical switching device. The optical switching device is configured to select a core of the optical fiber and direct optical pulses received from the laser source into the selected core.

A device for the exact manipulation of material, especially of organic material, includes a pulsed laser system with a radiation source, said radiation source being a cavity-dumped fs oscillator.

Systems and methods are provided for fingertip control of an ophthalmic surgical instrument during ophthalmic surgery. A hand control unit worn by the ophthalmic surgeon comprises at least one fingertip cover, with at least one sensor in the fingertip cover. The sensor may detect the surgeon's selection of the ophthalmic surgical instrument, the amount of finger pressure applied by the surgeon, and other parameters, allowing the surgeon to use fingertip action to control a function of the ophthalmic surgical instrument.