Intraocular lens with double optical regions

Abstract

The invention relates to an intraocular lens with double optical areas, belonging to the field of ophthalmic medical prostheses. The intraocular lens comprises a front optical lens part and a rear optical lens part, wherein the front optical lens part and the rear optical lens part are connected through a necking down part, the front optical lens part is positioned in a lens capsule, the rear optical lens part is located in a vitreous cavity on the rear side of a rear capsule membrane of the lens capsule, and a rear capsule membrane hole for clamping the necking down part in a matched mode is formed in the center of the rear capsule membrane. According to the intraocular lens with the double optical regions, after implantation, the central position of the rear capsule membrane is provided with the rear capsule membrane hole, and the rear capsule membrane hole is also a necking position for connecting the front optical lens part and the rear optical lens part, so even if the outer edge of the rear capsule membrane hole is obstructed and turbid in the later period of an operation, the region of the rear capsule membrane hole is always kept transparent, and operations such as postoperative peripheral retina observation and laser operation are not influenced; and especially, the intraocular lens is very important for a child cataract patient, a front vitreous body does not need to be cut off during a secondary operation, and the completeness of the vitreous body is prevented from being damaged.

Description

technical field [0001] The invention relates to the field of ophthalmic medical prostheses, in particular to an artificial lens which is convenient for preventing post-developmental disorder. Background technique [0002] In the prior art, the conventional intraocular lens has a single-piece convex lens optical zone, which is inserted into the lens capsular bag of cataract patients to replace the original cloudy lens, so that the patient can see clearly and regain light. This kind of single-piece intraocular lens is used for patients with postoperative hindrance and opacity in the posterior capsule area, and a second operation is required, and vitrectomy is required to remove the opacity in the posterior capsule area, so as to facilitate Resection of the vitreous near the opacified posterior lens and the opacified posterior capsular bag also compromised the integrity of the vitreous. Therefore, the single-piece intraocular lens cannot ensure that cataract surgery patients w...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problem that the single-piece intraocular lens in the prior art cannot prevent after-disorder, and provides a double-optic-zone intraocular lens that is convenient for preventing after-disorder, so that the patient can undergo one operation without recurrence

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