Corneal bandage lens and preparation method thereof

Abstract

A corneal bandage lens prepared by the preparation method of the corneal bandage mirror provided by the embodiment of the invention has the advantages that the structure is simple; when the corneal bandage lens is applied to vitreous surgeries, in the surgery, the visual field of doctors is kept clear for a long time; generally greater than 10 minutes, if sharpness has decreased, a small amount ofbalanced salt solution is utilized; washing the surface of the corneal bandage lens; and when the sclera is pressed and the eyeball is rotated, the visual field of the doctor is not obviously deformed in the operation, and after the existing corneal bandage mirror is improved, the corneal bandage mirror is applied to the vitreous operation, so that the burden of an assistant is greatly reduced, the operation efficiency is improved, and the clinical application range of the existing corneal bandage mirror for treatment is expanded. Meanwhile, it is found that after the corneal bandage lens isremoved after the surgery is finished, the corneal epithelium integrity and the corneal epithelium edema degree of the operation eye are superior to those of a traditional balanced salt solution flushing set, and therefore the existing corneal bandage lens for treatment also has a clear protection effect on corneas in vitreous body operation.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, and in particular relates to a corneal bandage mirror and a preparation method thereof. Background technique [0002] Modern minimally invasive vitreous surgery refers to using a special trocar to directly puncture into the vitreous cavity through the bulbar conjunctiva and sclera in the pars plana of the ciliary body to establish three channels without cutting the bulbar conjunctiva. The tube is inserted into the vitreous cavity for surgery. This operation has obvious advantages such as small trauma, no need for suturing incision, mild postoperative inflammatory reaction and short operation time. It has been widely used in ophthalmology, and its indications cover almost all vitreous and retinal diseases and some lens diseases that require surgical treatment in ophthalmology. [0003] The wide application of non-contact wide-angle lenses in modern minimally invasive vitreous surgery h...

AI Technical Summary

Problems solved by technology

[0003] The wide application of non-contact wide-angle lenses in modern minimally invasive vitreous surgery has significantly improved the efficiency and postoperative effect of vitreous surgery. However, due to the inherent disadvantages compared with contact wide-angle lenses: 1. The cornea is exposed to the air and is easy to dry. Affect the clarity of the surgical field of view; 2. During the operation, the assistant needs to continuously rinse the corneal surface with balanced salt solution (BSS solution), and the average flushing interval is 10 seconds to 20 seconds, so as to maintain the clarity of the surgical field of view, but it is often restricted during the operation Due to the proficiency of the assistant and the complexity of the operation, the surface of the cornea is unevenly coated or droplets are splashed on the surface of the indirect mirror, which affects the clarity of the surgical field; 3. With the prolongation of the operation time, the corneal epithelial edema increases, The operator loses a clear surgical field of view, and then has to scrape off the corneal epithelium, causing transient or continuous damage to the ocular surface, which has a significant impact on the recovery of postoperative vision and the improvement of comfort

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