Patent classifications
A61F9/0081
Method of prevention of capsular opacification and fibrosis after cataract extraction and/or prevention of fibrosis around a shunt or stent after glaucoma surgery
A method of preventing capsular opacification and fibrosis after cataract extraction and and/or preventing fibrosis around a shunt or stent after glaucoma surgery is disclosed herein. In the cataract procedure, after the cortex and nucleus of the natural lens with the cataract has been removed, a photosensitizer is applied inside the lens capsule, a posterior portion of the lens capsule is irradiated so as to activate cross-linkers and prevent capsular opacification and fibrosis, and an intraocular lens is inserted into the lens capsule. In the glaucoma procedure, a fluid drainage opening is formed and/or a stent is inserted into the eye, a photosensitizer is applied inside an anterior chamber of the eye so that a diffused stream of the photosensitizer travels through the fluid drainage opening or the stent, and the tissue surrounding the fluid drainage opening or the stent is irradiated so as to activate cross-linkers and prevent fibrosis.
Corneal implant systems and methods
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.
Corneal implant systems and methods
According to one aspect of the present disclosure, an implant for correcting vision impairment is disclosed. The implant is made from a donor corneal tissue sized and shaped to provide a predetermined refractive correction and reshaping of a cornea. The donor corneal tissue includes a posterior surface and an anterior surface. The posterior surface has a surface profile that is configured to generally correspond to a shape of an implantation site of the cornea.
Posterio capsulotomy using laser techniques
A system and method are provided for removing a natural lens and inserting an Intraocular Lens (IOL) into the lens capsule of an eye. Specifically, this is accomplished by inserting the IOL through an opening on the posterior capsule that is created using a focused laser beam. The system includes a laser unit, a detector for creating images of the interior of the eye, and a computer that controls the cooperative functions of the detector and the laser unit. Based on images of the posterior capsule provided by the detector, the computer is used to control movements of the focal point through tissue of the posterior capsule to perform Laser Induced Optical Breakdown (LIOB) on posterior capsule tissue. The result is a laser capsulotomy that creates an opening through the posterior capsule allowing the natural lens to be removed and the IOL to be implanted.
POSTERIOR CAPSULOTOMY USING LASER TECHNIQUES
A system and method are provided for removing a natural lens and inserting an Intraocular Lens (IOL) into the lens capsule of an eye. Specifically, this is accomplished by inserting the IOL through an opening on the posterior capsule that is created using a focused laser beam. The system includes a laser unit, a detector for creating images of the interior of the eye, and a computer that controls the cooperative functions of the detector and the laser unit. Based on images of the posterior capsule provided by the detector, the computer is used to control movements of the focal point through tissue of the posterior capsule to perform Laser Induced Optical Breakdown (LIOB) on posterior capsule tissue. The result is a laser capsulotomy that creates an opening through the posterior capsule allowing the natural lens to be removed and the IOL to be implanted.
POSTERIOR CAPSULOTOMY USING LASER TECHNIQUES
A system and method are provided for removing a natural lens and inserting an Intraocular Lens (IOL) into the lens capsule of an eye. Specifically, this is accomplished by inserting the IOL through an opening on the posterior capsule that is created using a focused laser beam. The system includes a laser unit, a detector for creating images of the interior of the eye, and a computer that controls the cooperative functions of the detector and the laser unit. Based on images of the posterior capsule provided by the detector, the computer is used to control movements of the focal point through tissue of the posterior capsule to perform Laser Induced Optical Breakdown (LIOB) on posterior capsule tissue. The result is a laser capsulotomy that creates an opening through the posterior capsule allowing the natural lens to be removed and the IOL to be implanted.
Corneal lenslet implantation with a cross-linked cornea
A method of corneal lenslet implantation with a cross-linked cornea is disclosed herein. In one or more embodiments, the method includes the steps of: (i) forming a two-dimensional cut into a cornea of an eye; (ii) creating a three-dimensional pocket in the cornea of the eye in tissue around the two-dimensional cut to gain access to tissue surrounding the three-dimensional pocket; (iii) applying a photosensitizer inside the three-dimensional pocket so the photosensitizer permeates at least a portion of the tissue surrounding the three-dimensional pocket to facilitate cross-linking of the tissue surrounding the three-dimensional pocket; (iv) irradiating the cornea to activate cross-linkers in the portion of the tissue surrounding the three-dimensional pocket, and thereby stiffen the cornea, prevent corneal ectasia of the cornea, and kill cells in the portion of the tissue surrounding the three-dimensional pocket; and (v) inserting a lens implant into the three-dimensional pocket through a small corneal incision.
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.
Method and apparatus for endothelial keratoplasty
A tool for endothelial implantation comprising a base frame on a stem and a covering frame such that the base frame is insertable between a stroma and a Descemet's membrane and the covering frame is positionable over the base frame to lockingly engage the base frame trapping a section of Descemet's membrane between the base frame and the cover frame for surgical separation of the section by cutting therearound.
Method of altering the refractive properties of an eye
The present invention relates to a method of altering the refractive properties of the eye, the method including applying a substance to a cornea of an eye, the substance configured to facilitate cross linking of the cornea, irradiating the cornea so as to activate cross linkers in the cornea, and altering the cornea so as to change the refractive properties of the eye.