A61F9/00831

Photodynamic therapy technique for preventing damage to the fovea of the eye or another body portion of a patient
11666777 · 2023-06-06 ·

A photodynamic therapy technique for preventing damage to the fovea of the eye or another body portion of a patient is disclosed herein. In one embodiment, a treatment laser is applied to a body portion of a patient using a painting technique, the treatment laser being configured to provide paint brush-type photodynamic therapy (PPDT) using the painting technique to the body portion of the patient by emitting light of a predetermined wavelength that is absorbed by tissue of the body portion of the patient to which a photosensitizer has been applied, the body portion of the patient being afflicted by a medical condition. The application of the treatment laser to the body portion of a patient using the painting technique treats the medical condition, reduces the symptoms associated with the medical condition, and/or alleviates the medical condition.

Molding or 3-D printing of a synthetic refractive corneal lenslet
11259914 · 2022-03-01 ·

A method of forming and implanting a synthetic corneal lenslet in an eye of a patient includes the steps of: forming a synthetic lenslet from a collagen solution using a mold or a 3-D printer that are configured to form the synthetic lenslet into a predetermined shape for correcting a particular refractive error of the patient; forming a cavity for receiving the synthetic lenslet in the cornea of the eye of the patient; inserting the synthetic lenslet into the cavity of the eye; applying a photosensitizer into the cavity of the eye so that the photosensitizer permeates at least a portion of the tissue surrounding the cavity and at least a portion of the synthetic lenslet; and irradiating the cornea so as to activate cross-linkers in the synthetic lenslet and cross-linkers in the portion of the tissue surrounding the cavity, and thereby prevent an immune response.

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.

Method for eye surgery
11253397 · 2022-02-22 · ·

A system for producing control data for controlling a laser so as to produce at least one cutting surface in a cornea of an eye of a patient includes a non-transitory computer readable medium having stored thereon instructions for establishing a geometry of a lenticule cut, establishing a geometry of a cap cut running substantially parallel to a surface of the cornea, establishing a geometry of an external opening cut arranged outside an optical zone of the eye of the patient, and establishing a geometry of an access cut to connect the cap cut to the external opening cut.

Method for eye surgery
11241336 · 2022-02-08 · ·

A planning system for generating control data for a treatment apparatus which creates at least one cut surface in the cornea using a laser device, and a treatment apparatus which comprises a planning system of the aforementioned type. The invention also relates to a method of generating control data for a treatment apparatus which creates at least one cut surface in the cornea using a laser device, and to a corresponding method of eye surgery. The planning system comprises a calculation means for defining the cut surfaces of the cornea, wherein the calculation means determines the cornea cuts so that the cut surfaces isolate a lenticule, which is treated according to the planned refraction correction after removal from the cornea, so that the planned refraction correction occurs after the insertion into the cornea of the recipient.

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.

METHOD FOR EYE SURGICAL PROCEDURE
20170216091 · 2017-08-03 · ·

A planning device for generating control data for a treatment apparatus, which by application of a laser device generates at least one cut surface in the cornea, and to a treatment apparatus having such a planning device. The invention further relates to a method for generating control data for a treatment apparatus, which by application of a laser device generates at least one cut surface in the cornea, and to a corresponding method for eye surgery. The planning device is thereby provided with a calculating device that defines the corneal incision surfaces, wherein the calculating device determines the corneal incisions such that after inserting an implant into the cornea, existing refractive errors are counteracted.

Ophthalmological laser method
09814619 · 2017-11-14 · ·

The present invention relates to a femtosecond laser ophthalmological apparatus and method that creates a flap on the cornea for LASIK refractive surgery or for other applications that require removal of corneal and lens tissue at specific locations, such as in corneal transplants, stromal tunnels, corneal lenticular extraction and cataract surgery. The femtosecond laser is transferred from the main cabinet to a hand piece module via a rotating mirror set module. In the hand piece, the femtosecond laser beam is scanned and guided to the patient's eye. The ablation pattern is based on dividing the area of the ablation area into a matrix grid made up of cells. Predetermined ablation pattern is completed in an individual cell before moving on to the next cell until ablation is complete in the entire matrix grid mapped on the ablation area.

ADJUSTING LASER ENERGY IN ACCORDANCE WITH OPTICAL DENSITY
20170319388 · 2017-11-09 ·

In certain embodiments, a device comprises a laser device and a control computer. The laser device directs a laser beam with laser energy through an outer portion of an eye to a target portion of the eye. The control computer receives an optical density measurement of the outer portion, determines the laser energy according to the optical density measurement, and instructs the laser device to direct the laser beam with the laser energy through the outer portion of the eye to the target portion of the eye.

Corneal Implant Systems and Methods
20170319329 · 2017-11-09 ·

A system for forming corneal implants includes a first cutting apparatus configured to cut a donor cornea and form a portion of corneal tissue. The donor cornea includes an anterior surface and a posterior surface. The first cutting apparatus is configured to cut the donor cornea along an axis extending between the anterior surface and the posterior surface. The system also includes a second cutting apparatus configured to form a plurality of lenticules from the portion of corneal tissue by making, to the portion of corneal tissue, a series of cuts transverse to the axis. Corneal tissue between consecutive cuts by the second cutting apparatus provides a corresponding lenticule to be shaped for a corneal implant. A distance between the consecutive cuts defines a thickness for the corresponding lenticule.