A61F9/0081

Lamellar Corneal Autologous Or Homologous Graft In Refractive Surgery
20220409362 · 2022-12-29 ·

A method of lamellar corneal graft implantation is disclosed herein. In one or more embodiments, the method includes the steps of: (i) modifying a genetic component of a lamellar cornea or other tissue of an animal so that the lamellar cornea or other tissue of the animal can be used for human transplantation; (ii) decellularizing the lamellar cornea or other tissue ex vivo using chemical means; (iii) modifying a shape of the lamellar cornea or other tissue before or after transplantation; and (iv) applying a photosensitizer and ultraviolet radiation to the lamellar cornea or other tissue so as to crosslink collagen and intercellular proteins of the lamellar cornea or other tissue, kill the cells exposed to the photosensitizer, and eliminate an immune response by a host to the implanted lamellar cornea or the tissue.

Ablatable Corneal Inlay For Correction Of Refractive Errors And/Or Presbyopia
20220409361 · 2022-12-29 ·

An ablatable corneal inlay for correction of refractive errors and/or presbyopia, and a method of correcting refractive errors and presbyopia in an eye of a patient using an ablatable corneal inlay is disclosed herein.

Corneal Treatment
20220161370 · 2022-05-26 ·

Systems and methods produce implants for treating keratoconus or other eye disorders. An example method includes identifying a subject with keratoconus. The method includes obtaining, with assessment means, an assessment of a cornea of a subject; determining, by processor(s), inverse measurements for correcting one or more irregularities associated with the keratoconus based on the assessment; and shaping, with a laser system, a donor cornea according to a pattern based on the inverse measurements. The example method may further include determining smoothing effects associated with the cornea, wherein the inverse measurements are based further on the smoothing effects, and the pattern for shaping the donor cornea is based further on the smoothing effects. Obtaining the assessment of the cornea may include obtaining a topographic measurement, a tomographic measurement, anterior segment optical coherence tomography (OCT), Scheimpflug imaging, an epithelium mapping, a stromal thickness mapping, and/or one or more biomechanical measurements.

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.

METHODS AND DEVICES FOR WAVEFRONT TREATMENTS OF ASTIGMATISM, COMA, PRESBYOPIA IN HUMAN EYES
20220211489 · 2022-07-07 ·

Methods and devices are provided for wavefront treatments of an eye's astigmatism, coma, and presbyopia. Wavefront-engineered monofocal lenses, inducing spherical aberration into the eye's central pupil, provide vision correction beyond 20/20 acuity and improve quality of vision by eliminating image distortion caused by uncorrected astigmatism and coma in the eye. New presbyopia-correcting lenses, including Extended Depth of Focus (EDOF) bifocal, EDOF trifocal, and quasi-accommodating lenses, are disclosed for presbyopia corrections between +0.75 D to +3.25 D, and they are achieved by inducing a positive spherical aberration and a positive focus offset less than 3 Diopters in a central section plus a negative spherical aberration in an annular section within a central part of a monofocal lens. These wavefront lenses can be adapted for contact lenses, implantable contact lenses, Intraocular Lenses (IOLs), phakic IOLs, accommodating IOLs, corneal inlays, as well as eyepieces for Virtual Reality (VR) displays, game goggles, microscopes, telescopes.

Eye tissue measurements

A compact system for performing laser ophthalmic surgery is disclosed. The systems and methods may be used to measure corneal thickness or other anatomy to prepare a treatment plan for any of numerous treatments, such as LASIK, PRK, intra stromal lenticular lens incisions, cornea replacement, or any other treatment. By using a reduced power femtosecond laser backscatter may be measured to calculate distances such as distances between an interior boundary and an exterior boundary of a cornea or other tissue.

Tissue holding apparatus
11065106 · 2021-07-20 · ·

A tissue holding assembly for endothelial implantation comprising an open frame having legs for engaging a stem, such that said frame is insertable between a stroma and a Descemet's membrane, said frame being coated with a biological adhesive for adhering to a perimeter of a section of the Descemet's membrane to adhere the section of the Descemet's membrane to the frame for surgical separation of said section by cutting therearound, wherein said frame further comprises a heating element around its inner perimeter.

CORNEAL IMPLANT SYSTEMS AND METHODS
20210205133 · 2021-07-08 ·

A system for forming a corneal implant includes a cutting apparatus, which includes a laser source that emits a laser and optical elements that direct the laser. The system includes a controller implemented with at least one processor and at least one data storage device. The controller generates a sculpting plan for modifying a first shape of a lenticule formed from corneal tissue and achieving a second shape for the lenticule to produce a corneal implant with a refractive profile to reshape a recipient eye. The sculpting plan is determined from measurements relating to the lenticule having the first shape and information relating to a refractive profile for a corneal implant. The controller controls the cutting apparatus to direct, via the one or more optical elements, the laser from the laser source to sculpt the lenticule according to the sculpting plan to produce the corneal implant with the refractive profile.

Device For Ablation Processing Of Ophthalmological Implantation Material
20210259885 · 2021-08-26 ·

A device for ablation processing of ophthalmological implantation material, which is formed by water-containing base material, comprises a laser source, which is configured to generate a pulsed laser beam having a processing wavelength in the ultraviolet wavelength range, wherein the processing wavelength is greater than 193 nm and causes a higher absorptance of the laser beam in the base material of the implantation material than the absorptance of the laser beam in the water of the implantation material is described.

Methods for treatment of dry eye and other acute or chronic inflammatory processes
11045352 · 2021-06-29 ·

Methods for treatment of dry eye and other acute or chronic inflammatory processes are disclosed herein. One method includes administering a drug delivery implant to a patient in need thereof, the drug delivery implant comprising one or more Rock inhibitors and/or one or more Wnt inhibitors, the patient having a medical condition selected from the group consisting of dry eye, lichen planus, arthritis, psoriasis, plantar fasciitis, pars planitis, scleritis, keratitis, chronic meibomian gland inflammation, optic nerve neuritis, uveitis, papillitis, diabetic neural pain, diabetic retinopathy, a cataract, a side effect occurring after refractive surgery, a side effect occurring after corneal transplant, a side effect occurring after retinal detachment surgery, and combinations thereof. The administration of the drug delivery implant to the patient treats the medical condition, reduces the symptoms associated with the medical condition, enhances nerve regeneration, and/or alleviates the medical condition.