Anterior capsule opening auxiliary fixed artificial lens

Abstract

The invention discloses an anterior capsule opening auxiliary fixed artificial lens which comprises a circular optical portion and two or more C-shaped or J-shaped strip or banded supporting loops, wherein the supporting loops are used for fixing the artificial lens and arranged on the periphery of the optical portion. Auxiliary fixing mechanisms are arranged at roots of the supporting loops and used for assisting in fixing the artificial lens, and the roots of the supporting loops are joints of the supporting loops and the optical portion. According to the anterior capsule opening auxiliary fixed artificial lens, stability of the optical portion is more effectively ensured, and the design structure is applicable to three-piece or one-piece artificial lenses, lenses with or without included angles between loops or optical areas, single-focus or multi-focus lenses, light-scattering lenses and various artificial lenses made of different materials.

Description

technical field [0001] The invention relates to the technical field of intraocular lenses, in particular to an anterior capsular opening assisted fixation type intraocular lens. Background technique [0002] Cataract is the most common blinding eye disease in the world, and phacoemulsification combined with intraocular lens implantation is currently the main treatment for cataract. The operation needs to remove a part of about 5.5mm in the center of the anterior capsule of the lens (by manipulative ablation or femtosecond laser-assisted resection to prepare a circular anterior capsule opening with a diameter of 5.5mm), phacoemulsification completely removes the nuclei of the opaque lens and sucks out the lens cortex , while retaining the complete posterior capsule, and then implant the intraocular lens into the lens capsular bag and ensure that the position is centered and stable. [0003] At present, the conventionally designed intraocular lens structure includes: the opti...

AI Technical Summary

Problems solved by technology

However, it is very difficult for the lens of this design to realize its function in actual use, because it is often difficult to ensure that the anterior capsule opening is a regular 5.5 mm in size and a perfect circle in the center, and the groove around the optical part cannot be grasped. anterior sac

However, the femtosecond laser-assisted technology that can achieve precise anterior capsule preparation cannot be popularized clinically because it is too expensive.

In addition, after the optic part of the intraocular lens is clamped at the capsular bag mouth, the capsular bag remains airtight, and fluid retention in the capsular bag is prone to complications of "capsular bag block syndrome" (the capsular bag port is completely sealed, fluid retention, and the lens optic part moves forward. , causing a series of problems such as myopia and high intraocular pressure)

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