A61F9/0081

Lamellar Corneal Autologous Or Homologous Graft In Refractive Surgery
20210113375 · 2021-04-22 ·

A method of lamellar corneal graft implantation is disclosed herein. The method includes the steps of: (i) forming one or more intrastromal incisions in a cornea of an eye of a patient; (ii) removing a cut portion of the cornea defined by the one or more intrastromal incisions from the eye of the patient; (iii) applying laser energy to a lamellar corneal graft using an excimer laser so as to modify the refractive power of the lamellar corneal graft, the lamellar corneal graft being in the form of a autologous corneal graft or a homologous corneal graft; and (iv) implanting the lamellar corneal graft into the eye of the patient in a location previously occupied by the cut portion of the cornea so as to correct the refractive power of the eye of the patient.

Corneal implant systems and methods
10952900 · 2021-03-23 · ·

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.

Refractive treatment of an eye by printing material onto a target
10959882 · 2021-03-30 · ·

In certain embodiments, a system for performing refractive treatment of an eye comprises a laser, a printer, and a computer. The laser emits a laser beam to prepare the eye for the refractive treatment. The printer prints material onto a print area of a target. The printer comprises a printer head and a printer controller. The printer head directs the material onto the print area, and the printer controller moves the printer head to direct the material onto a specific location of the print area. The computer comprises a memory and processors. The memory stores instructions for a pattern for the target. The pattern is designed to provide the refractive treatment for the eye. The processors instruct the printer controller to move the printer head to print the material onto the print area according to the pattern.

CORNEAL PROSTHESIS AND METHOD OF PENETRATING KERATOPLASTY
20200085566 · 2020-03-19 ·

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.

Method of corneal transplantation or corneal inlay implantation with cross-linking
10583221 · 2020-03-10 ·

A method of corneal implantation with cross-linking is disclosed herein. In one or more embodiments, the method includes the steps of: (i) cutting a circular implant from a donor cornea; (ii) cutting the circular implant into a plurality of constituent pieces; (iii) forming a small incision in a recipient cornea of an eye of a patient; (iv) forming a pocket in the recipient cornea of the eye of the patient, the pocket being accessible through the small incision in the recipient cornea, and the pocket being bounded entirely by stromal tissue of the cornea; and (v) inserting each of the plurality of constituent pieces of the implant into the pocket of the recipient cornea via the small incision, wherein the implant is cross-linked so as to prevent an immune response to the implant and/or rejection of the implant by the patient.

CORNEAL IMPLANT SYSTEMS AND METHODS
20200046559 · 2020-02-13 ·

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.

EYE TISSUE MEASUREMENTS
20190388270 · 2019-12-26 ·

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.

Corneal implant systems and methods
10449090 · 2019-10-22 · ·

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.

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.