A61F2009/00878

SYSTEM AND METHOD FOR MEASURING TILT IN THE CRYSTALLINE LENS FOR LASER PHACO FRAGMENTATION
20220330818 · 2022-10-20 · ·

A method of generating three dimensional shapes for a cornea and lens of an eye, the method including illuminating an eye with multiple sections of light and obtaining multiple sectional images of said eye based on said multiple sections of light. For each one of the obtained multiple sectional images, the following processes are performed: a) automatically identifying arcs, in two-dimensional space, corresponding to anterior and posterior corneal and lens surfaces of the eye by image analysis and curve fitting of the one of the obtained multiple sectional images; and b) determining an intersection of lines ray traced back from the identified arcs in two-dimensional space with a known position of a section of space containing the section of light that generated the one of the obtained multiple sectional images, wherein the determined intersection defines a three-dimensional arc curve. The method further including reconstructing three-dimensional shapes of the anterior and posterior cornea surfaces and the anterior and posterior lens surfaces based on fitting the three-dimensional arc curve to a three-dimensional shape.

TREATMENT DEVICE FOR EYE SURGERY

A planning device that generates control data for a treatment apparatus which produces at least one cut surface in the cornea by application of a laser device. The invention further relates to a treatment apparatus having a planning device of the aforementioned type and a method for generating control data for this treatment apparatus, and also to a method for eye surgery, at least one cut surface being produced by application of a treatment apparatus with a laser device. The planning device includes a calculation application that defined corneal cut surfaces, which facilitates a largely free assignment to geometric variables of the eye. The method for generating control data includes generating a control data record for the corneal cut surface that controls the laser device, wherein the planning device, during the determination of the cut surfaces, facilitates a largely free assignment to geometric variables of the eye.

GENERATING BUBBLE JETS TO FRAGMENT AND REMOVE EYE FLOATERS
20230157888 · 2023-05-25 ·

In certain embodiments, an ophthalmic laser system for treating a floater in a vitreous of an eye includes a laser device that directs laser pulses towards the floater to yield cavitation bubbles that create a bubble jet to treat the floater. In some examples, the laser device includes a beam multiplexer that splits a laser beam into multiple beams that form the cavitation bubbles that create the bubble jet. In some examples, the laser device directs laser pulses towards the floater according to a pulse pattern that forms the cavitation bubbles that create the bubble jet.

RETINAL TREATMENT
20170367889 · 2017-12-28 ·

A method of determining control parameters of a retinal treatment system comprising acquiring an image of a retina of a subject's eye using an imaging laser and an optical system of the retinal treatment system, presenting an image of the retina to a user of the retinal treatment system, receiving from the user location data of the retinal image that locates at least one treatment site of the retina, receiving from the user a required laser light pattern for use on the treatment site, using the location data to determine a location control parameter which causes the optical system to direct laser light from a treatment laser of the retinal treatment system to the treatment site, and using the required laser light pattern to determine a pattern control parameter which causes the treatment laser to produce a laser light pattern which passes through the optical system and results in the required laser light pattern at the treatment site.

UV-LASER-BASED SYSTEM FOR CORRECTING VISION DISORDERS
20230201036 · 2023-06-29 ·

A focusing optical system for a UVL-LVC system with a UV laser source and a scanning system that focuses a laser in a focal field and a lens assembly with a convergent focal field. The invention further includes a planning unit that generates planning data for a UVL-LNC system with a UV laser source, a scanning system, a focusing optical system, and a control unit for controlling the UVL-LVC system while taking into consideration planning data, wherein the planning unit takes into consideration geometry losses, Fresnel losses, and/or a spatial extension of laser radiation on a working surface while calculating the planning data, and the planning unit has an interface that provides the planning data. Finally, the invention includes a UVL-LVC system with a UV laser source, a scanning system, a focusing optical system according to the invention, a planning unit according to the invention, and a control unit.

REMOTE OPHTHALMIC SYSTEM AND RELATED METHODS
20170360604 · 2017-12-21 ·

A remote ophthalmic system may include an examination device having an ophthalmic laser device, and a first processor coupled to the ophthalmic laser device, a communication network, and a remote control device being associated with a user, being remote to the examination device, and being in communication with the examination device over the communication network. The first processor may be configured to receive target values for application of the ophthalmic laser device from the remote control device, the target values for application of the ophthalmic laser device being associated with an ophthalmic procedure on a patient, and perform the ophthalmic procedure on the patient by applying the ophthalmic laser device based upon the target values.

OPTHALMOLOGICAL TREATMENT DEVICE FOR DETERMINING A ROTATION ANGLE OF AN EYE
20230196577 · 2023-06-22 ·

An ophthalmological treatment device comprising a processor and a camera for determining a rotation of an eye of a person, the processor configured to: receive a reference image of the eye, the reference image having been recorded with the person in an upright position by a separate diagnostic device; record, using the camera, a current image of the eye, the current image being recorded with the person in a reclined position; and determine a rotation angle of the eye by comparing the reference image to the current image using a direct solver.

Semi-automated ophthalmic photocoagulation method and apparatus
11672704 · 2023-06-13 · ·

An ophthalmic treatment system and method for performing therapy on target tissue in a patient's eye. A delivery system delivers treatment light to the patient's eye and a camera captures a live image of the patient's eye. Control electronics control the delivery system, register a pre-treatment image of the patient's eye to the camera's live image (where the pre-treatment image includes a treatment template that identifies target tissue within the patient's eye), and verify whether or not the delivery system is aligned to the target tissue defined by the treatment template. The control electronics control the delivery system to project the treatment light onto the patient's eye in response to both an activation of a trigger device and the verification that the delivery system is aligned to the target tissue, as well as adjust delivery system alignment to track eye movement.

APPLICATION OF ELECTROMAGNETIC RADIATION TO THE HUMAN IRIS
20220354697 · 2022-11-10 · ·

Rather than rely solely upon pupillary occlusion or tracking of eye movement to protect the fundus from accidental exposure to electromagnetic radiation, the present invention also utilizes an electromagnetic radiation pathway with a profile such that the energy density at the iris is greater than the energy density at the posterior portion of the eye. This disparity in energy density allows for efficacy at the anterior iris treatment site, without injury to the fundus.

SYSTEM AND METHOD FOR LASER TREATMENT OF OCULAR TISSUE BASED ON PATIENT BIOMETRIC DATA AND APPARATUS AND METHOD FOR DETERMINING LASER ENERGY BASED ON AN ANATOMICAL MODEL

A look-up table for use in determining an energy parameter for photodisrupting ocular tissue with a laser is generated by determining a plurality of individual spot size distributions, wherein each of the plurality of individual spot size distributions is based on a different set of simulated data and includes an expected spot size of a laser focus at each of a plurality of locations within a modeled target volume of ocular tissue. The plurality of individual spot size distributions are combined to obtain a final spot size distribution that includes a final expected spot size of the laser focus at the plurality of locations of the focus within the modeled target volume of ocular tissue. An energy value is assigned to the plurality of locations of the focus within the modeled target volume of ocular tissue based on the final expected spot size at that location.