CN109481084B

CN109481084B - Ophthalmic lens with thin film coating

Info

Publication number: CN109481084B
Application number: CN201811273245.6A
Authority: CN
Inventors: 田东华
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2021-02-09
Anticipated expiration: 2038-10-30
Also published as: CN109481084A

Abstract

The invention discloses an ophthalmic lens with a thin film coating, which comprises a lens cavity, wherein irises are arranged on the inner walls of two sides of the lens cavity, a lens is arranged on one side, close to the iris, of the inner wall of the lens cavity, ciliary muscles are arranged on the outer walls of two ends of the lens, one end, far away from the lens, of the ciliary muscles is connected with the inner wall of the lens cavity, a high-transmittance thin film is arranged on the outer wall of the lens and comprises a front capsular sac and a rear capsular sac, a nerve induction sheet is arranged on the outer wall of the front capsular sac, the outer wall of one side of the nerve induction sheet is attached to the inner wall of the iris, a groove is formed in the outer wall of the rear capsular sac, and an annular contraction band. The lens is made of hydrophilic polyacrylate copolymer, the front capsule membrane and the rear capsule membrane are made of hydrophobic polyacrylate copolymer, and different absorbents can be implanted into the soft crystal material to match the soft crystal material, so that the soft crystal material is closer to the natural lens of the eyeball.

Description

Ophthalmic lens with thin film coating

Technical Field

The invention relates to the technical field of ophthalmic lenses, in particular to an ophthalmic lens with a thin film coating.

Background

As the age of the eye increases, the natural lens in the eye of the human body becomes stiffer, more intensely colored, and opaque due to various factors. These factors include genetic genes, ultraviolet irradiation, etc. which oxidize cysteine structures in natural lenses to convert them into cystine structures, resulting in the lenses becoming harder and turbid, and about 10-15% of the elderly over sixty years old have cataract eye diseases, whose natural lenses permanently lose their vision if they cannot be replaced by intraocular lenses, so that in the last sixty years of the past, ophthalmic medical scientists have attempted to restore vision of cataract patients by replacing turbid human ophthalmic lenses with intraocular lenses.

In the existing ophthalmic lens, the service life is limited by materials, and the problem of light transmittance exists between the existing ophthalmic lens and the iris and the imaging space in the eyeball, meanwhile, the ophthalmic lens can filter a large amount of harmful light like the natural eyeball, and meanwhile, the long-term light intensity change can influence the connection between the whole lens and the muscle and the nerve of the eyeball.

Disclosure of Invention

In view of the technical problems of the background art, the present invention provides an ophthalmic lens with a thin film coating.

The invention provides an ophthalmic lens with a thin film coating, which comprises a lens cavity, wherein irises are arranged on the inner walls of two sides of the lens cavity, a lens is arranged on one side, close to the iris, of the inner wall of the lens cavity, ciliary muscles are arranged on the outer walls of two ends of the lens, one end, far away from the lens, of the ciliary muscles is connected with the inner wall of the lens cavity, a high-transmittance thin film is arranged on the outer wall of the lens and comprises a front capsular sac and a rear capsular sac, a nerve induction sheet is arranged on the outer wall of the front capsular sac, the outer wall of one side of the nerve induction sheet is attached to the inner wall of the iris, a groove is formed in the outer wall of the rear capsular sac, an annular contraction band is filled in the inner wall of the groove, and photosensitive points are arranged on four sides, close to.

Preferably, the lens comprises a bionic elastomer and an elastic cavity, and the bionic elastomer is positioned on one side of the elastic cavity close to the iris.

Preferably, the two ends of the joint between the anterior capsular sac and the lens are both provided with connecting sacs, and the inner walls of the connecting sacs are provided with signal squeezing pieces which are connected with ciliary muscles.

Preferably, the extrusion space of the bionic elastomer and the elastic cavity is matched with the contraction space of the annular contraction band, and the stretching stroke of the ciliary muscle is matched with the extrusion stroke of the lens.

Preferably, the lens is made of a hydrophilic polyacrylate copolymer and the anterior and posterior capsule membranes are made of a hydrophobic polyacrylate copolymer.

Has the advantages that: the lens is made of hydrophilic polyacrylate copolymer, the front capsule membrane and the rear capsule membrane are made of hydrophobic polyacrylate copolymer, different absorbents can be implanted into the soft crystal material for matching, the glass transition temperature of the hydrophobic polyacrylate material is lower than 25 ℃, the deformability is larger than 80%, the refractive index is higher than 1.46, the soft crystal material is closer to the natural eyeball lens, the soft crystal material is divided into the front capsule membrane and the rear capsule membrane at the same time, and the front capsule membrane and the rear capsule membrane are matched with the upper nerve induction sheet and the extrusion information sheet, so that direct extrusion among the lens, muscles and nerves of the eyeball can be effectively reduced, and the service life is prolonged.

Drawings

FIG. 1 is a schematic representation of the structure of an ophthalmic lens having a thin film coating according to the present invention;

FIG. 2 is a schematic cross-sectional lens configuration for an ophthalmic lens having a thin film coating in accordance with the present invention;

FIG. 3 is a schematic diagram of a lens back structure of an ophthalmic lens with a thin film coating according to the present invention.

In the figure: 1 crystal cavity, 2 iris, 3 high-transmittance film, 4 ciliary muscle, 5 lens, 6 anterior capsule, 7 bionic elastomer, 8 nerve induction sheet, 9 extrusion signal sheet, 10 annular contraction zone, 11 posterior capsule and 12 photosite.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an ophthalmic lens with a thin film coating comprises a lens cavity 1, wherein irises 2 are arranged on the inner walls of two sides of the lens cavity 1, a lens 5 is arranged on one side of the inner wall of the lens cavity 1 close to the iris 2, ciliary muscles 4 are arranged on the outer walls of two ends of the lens 5, one end of the ciliary muscle 4 far away from the lens 5 is connected with the inner wall of the lens cavity 1, a high-transmittance thin film 3 is arranged on the outer wall of the lens 5, the high-transmittance thin film 3 comprises a front capsular sac 6 and a rear capsular sac 11, a nerve induction sheet 8 is arranged on the outer wall of the front capsular sac 6, the outer wall of one side of the nerve induction sheet 8 is attached to the inner wall of the iris 2, grooves are arranged on the outer wall of the rear capsular sac 11, annular contraction bands 10 are filled in the inner walls of the grooves, photosensitive spots 12 are arranged on four sides of the contact part of the rear capsular sac, the bionic elastomer 7 is positioned on one side of the elastic cavity close to the iris 2, two ends of a joint between the front capsular diaphragm 6 and the lens 5 are respectively provided with a connecting capsule, the inner wall of the connecting capsule is provided with an extrusion signal sheet 9, the extrusion signal sheet 9 is connected with the ciliary muscle 4, the extrusion space of the bionic elastomer 7 and the elastic cavity is matched with the contraction space of the annular contraction band 10, the stretching stroke of the ciliary muscle 4 is matched with the extrusion stroke of the lens 5, the lens 5 is made of hydrophilic polyacrylate copolymer, and the front capsular diaphragm 6 and the rear capsular diaphragm 11 are made of hydrophobic polyacrylate copolymer.

The ophthalmic lens is implanted into an eyeball, light enters an iris 2, the nerve induction sheet 8 in the high-transmittance film 3 is matched with the pressing signal sheet 9 to stimulate the lens 5 and ciliary muscles 4, so that the lens 5 is deformed to a light transmission angle, and harmful light is filtered through the front capsular sac 6 and the rear capsular sac 11. The image is formed in the eyeball on the photosite 12.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An ophthalmic lens with a film coating comprises a lens cavity (1) and is characterized in that irises (2) are arranged on the inner walls of the two sides of the lens cavity (1), a lens (5) is arranged on one side, close to the iris (2), of the inner wall of the lens cavity (1), ciliary muscles (4) are arranged on the outer walls of the two ends of the lens (5), one end, far away from the lens (5), of the ciliary muscles (4) is connected with the inner wall of the lens cavity (1), a high-transmittance film (3) is arranged on the outer wall of the lens (5), the high-transmittance film (3) comprises a front capsular sac (6) and a rear capsular sac (11), a nerve induction sheet (8) is arranged on the outer wall of the front capsular sac (6), the outer wall of one side of the nerve induction sheet (8) is attached to the inner wall of the iris (2), grooves are formed in the outer wall of the rear capsular sac (11), and annular contraction belts (10) are filled, light sensing points (12) are arranged on the four sides of the contact part of the rear capsular sac (11) and the lens (5) close to the annular contraction band (10);

the lens (5) is made of a hydrophilic polyacrylate copolymer, and the anterior capsule (6) and the posterior capsule (11) are made of a hydrophobic polyacrylate copolymer;

the lens (5) comprises a bionic elastomer (7) and an elastic cavity, and the bionic elastomer (7) is positioned on one side of the elastic cavity close to the iris (2); the bionic elastic body (7) is matched with the extrusion space of the elastic cavity and the contraction space of the annular contraction band (10), and the stretching stroke of the ciliary muscle (4) is matched with the extrusion stroke of the lens (5).

2. An ophthalmic lens with a thin film coating according to claim 1, characterized in that the connection between the anterior capsule (6) and the lens (5) is provided with a connecting capsule at both ends and the inner wall of the connecting capsule is provided with a squeeze signal pad (9), the squeeze signal pad (9) being connected with the ciliary muscle (4).