Methods for implanting corneal inlays based on high-precision visual axis positioning and intraocular pressure adjustment
AssigneeEye Hospital, Wenzhou Medical University
InventorsWei Chen, Mimi Liu, Zihao Liu, Saiqing Li
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a method for implanting a corneal inlay based on high-precision visual axis positioning and intraocular pressure adjustment, the method including: performing visual axis positioning on a target object to determine a visual axis center of the target object; producing a corneal implant cavity for the target object; adjusting an intraocular pressure of the target object; and implanting a lens into the corneal implant cavity of the target object to align the lens with the visual axis center of the target object.
Claims16
A method for implanting a corneal inlay based on visual axis positioning and intraocular pressure adjustment, comprising:
- determining a cutting diameter and a cutting depth via a phototherapeutic keratectomy (PTK) mode of an excimer laser device;
- importing a pupil offset in a corneal topography, via the excimer laser device, to determine a visual axis center, wherein the pupil offset includes an offset distance between a pupil center of a target object and an ideal optical center, and the ideal optical center includes a geometric center of a cornea;
- cutting within a corneal stroma layer of the target object based on the cutting diameter and the cutting depth;
- and
- separating corneal lamellae and obtaining a corneal implant cavity;
- making an incision around the cornea of the target object to release aqueous humor and adjust an intraocular pressure to make the intraocular pressure in a range of 5-10 mmHg;
- and
- implanting a lens into the corneal implant cavity of the target object to align the lens with the visual axis center of the target object.
A method for facilitating implanting a corneal inlay, comprising:
- cutting within a corneal stroma layer of a target object based on a cutting diameter and a cutting depth;
- and
- separating corneal lamellae and obtaining a corneal implant cavity;
- before implanting a corneal inlay, making an incision around a cornea of the target object to release aqueous humor and adjust an intraocular pressure to make the intraocular pressure in a range of 5-10 mmHg;
- and
- implanting a lens into the corneal implant cavity of the target object to align the lens with the visual axis center of the target object.
A method for vision correction by implanting a corneal inlay based on visual axis positioning and intraocular pressure adjustment, the method comprising:
- determining a cutting diameter and a cutting depth via a phototherapeutic keratectomy (PTK) mode of an excimer laser device;
- importing a pupil offset in a corneal topography, via the excimer laser device, to determine a visual axis center, wherein the pupil offset includes an offset distance between a pupil center of a target object and an ideal optical center, and the ideal optical center includes a geometric center of a cornea;
- cutting within a corneal stroma layer of the target object based on the cutting diameter and the cutting depth;
- and
- separating corneal lamellae and obtaining a corneal implant cavity;
- making an incision around a cornea of the target object to release aqueous humor and adjust an intraocular pressure to make the intraocular pressure in a range of 5-10 mmHg;
- and
- implanting a lens into the corneal implant cavity of the target object to align the lens with the visual axis center of the target object.
Dependencies are inferred from the claim text.