CN114041901A - Anti-abrasion multifocal intraocular lens and preparation method thereof - Google Patents

Anti-abrasion multifocal intraocular lens and preparation method thereof Download PDF

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Publication number
CN114041901A
CN114041901A CN202111370829.7A CN202111370829A CN114041901A CN 114041901 A CN114041901 A CN 114041901A CN 202111370829 A CN202111370829 A CN 202111370829A CN 114041901 A CN114041901 A CN 114041901A
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China
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intraocular lens
abrasion
lens
layer
annular
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CN202111370829.7A
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CN114041901B (en
Inventor
程子昱
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Zhengzhou Nishi Pharmaceutical Technology Co ltd
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Zhengzhou Nishi Pharmaceutical Technology Co ltd
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Priority to CN202310082483.3A priority Critical patent/CN116509598A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1616—Pseudo-accommodative, e.g. multifocal or enabling monovision
    • A61F2/1618—Multifocal lenses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2240/001—Designing or manufacturing processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Abstract

The artificial lens can be divided into a multifocal artificial lens, an adjustable artificial lens and an aspheric artificial lens according to functional classification, the multifocal artificial lens has better vision when seeing far and near due to the diffraction structure on the surface, glasses do not need to be worn, but in actual use, the multifocal artificial lens, particularly the uneven step-type diffraction structure on the lens, is easy to wear. Compared with the prior art, the wear-resistant layer is arranged on the multifocal intraocular lens and integrally formed with the lens, so that the wear of the diffraction structure on the surface of the lens is reduced.

Description

Anti-abrasion multifocal intraocular lens and preparation method thereof
Technical Field
The utility model relates to the field of artificial lenses, in particular to an anti-abrasion multifocal artificial lens and a preparation method thereof.
Background
The artificial lens is a special lens made of artificial synthetic materials, and the components of the artificial lens comprise silica gel, polymethyl methacrylate, hydrogel and the like. The artificial lens has the shape similar to the lens of human eyes, and has the characteristics of light weight, high optical performance, no antigenicity, inflammation, carcinogenicity, biodegradability and the like. After cataract operation, the turbid crystalline lens is removed, and the artificial crystalline lens is implanted into the eye to replace the original crystalline lens, so that the external objects are focused and imaged on the retina, and the surrounding scenery can be seen clearly.
The artificial lens can be classified into a multifocal artificial lens, an accommodating artificial lens and an aspherical artificial lens according to functional classification, wherein the multifocal artificial lens has a good vision at far and near due to a diffraction structure on the surface of the multifocal artificial lens, glasses are not needed, but in actual use, the multifocal artificial lens, particularly an uneven step-shaped diffraction structure on the lens, is easy to wear.
Disclosure of Invention
In order to solve the problem that the multifocal intraocular lens is easy to wear, the utility model provides an anti-wear multifocal intraocular lens and a preparation method thereof.
The object of the utility model is achieved in the following way: an anti-abrasion multifocal intraocular lens comprises an oval lens body, wherein the front surface of an optical structure of the lens is provided with at least one layer of annular diffraction structure to form an annular groove, a plane-shaped anti-abrasion layer is arranged at the notch part of the annular groove, and the notch of the annular groove is shielded by the anti-abrasion layer.
Furthermore, the anti-abrasion layer is arranged in a plane of one integral layer.
Furthermore, the positions of the anti-abrasion layer corresponding to the annular grooves are provided with acupuncture micropores.
Furthermore, the anti-abrasion layer is an annular anti-abrasion layer extending from the notch of the annular groove to the annular central plane, the number of the annular anti-abrasion layers is equal to the number of layers of the diffraction structure, and the annular anti-abrasion layers form a concentric annular structure.
Furthermore, the anti-abrasion layer material is at least one of silica gel, polymethyl methacrylate, hydrophilic acrylate, hydrophobic acrylate and hydrogel, and the anti-abrasion layer material is the same as the material of the lens body.
A preparation method of an anti-abrasion multifocal intraocular lens comprises the following steps:
(1) preparing a support material and an intraocular lens material;
(2) respectively adding a supporting material and an artificial lens material into two material boxes of the double-nozzle 3D printer;
(3) receiving a patient lens drawing sent by a medical institution, and establishing a corresponding intraocular lens model with an anti-abrasion layer, wherein a part of a lens body corresponds to an intraocular lens material, and a part of an annular groove corresponds to a supporting material;
(4) according to a model generation program, a nozzle of an intraocular lens material starts to work, layered printing is started from bottom to top, when the part of the annular groove is printed, the nozzle of the intraocular lens material stops working, the coordinate position of a printer translation mechanism is kept unchanged, the nozzle is switched to a supporting material nozzle to finish the printing of the supporting material of the part of the annular groove, then the coordinate position of the printer translation mechanism is kept unchanged, and the nozzle is switched back to the intraocular lens material nozzle to continue printing until the layer is printed;
(5) repeating the step (4) to finish printing each layer until the printing of the artificial lens body is finished;
(6) perforating the side of the intraocular lens body by a needle punching device until the innermost diffractive structure is pierced;
(7) injecting a solvent capable of dissolving the support material through the puncture hole in the step (6) to dissolve the support material, then extracting the dissolved support material, repeatedly cleaning the interior through the puncture hole, and finally sealing the hole;
(8) and (5) carrying out post-treatment on the initial product obtained in the step (7) to obtain a finished product of the intraocular lens.
Further, the lens body processed in the step (7) is provided with acupuncture micropores at the position corresponding to the annular groove on the anti-wear layer.
Further, the supporting material is a wax type supporting material, and the solvent capable of dissolving the supporting material is an alcohol organic solvent, an alcohol polymer organic solvent and vegetable oil which are uniformly stirred according to a certain proportion to prepare the organic mixed solvent.
An anti-abrasion multifocal intraocular lens is prepared and produced by a preparation method of the anti-abrasion multifocal intraocular lens.
Compared with the prior art, the wear of the diffraction structure on the surface of the lens is reduced by arranging the anti-wear layer on the multifocal intraocular lens.
Drawings
FIG. 1 is a schematic view of a conventional multifocal intraocular lens;
FIG. 2 is a cross-sectional view of a prior art multifocal intraocular lens;
FIG. 3 is a schematic view of the overall arrangement of a layer of the wear layer of the present invention;
FIG. 4 is a cross-sectional view of an overall one-layer planar arrangement of the wear layer of the present invention;
FIG. 5 is a schematic view of the structure of the wear layer of the present invention with a layer of flat and needle punched micro holes;
FIG. 6 is a cross-sectional view of an integral layer of the wear layer of the present invention with pin-punched micro-holes in a planar arrangement;
FIG. 7 is a schematic view of a ring-shaped wear layer according to the present invention;
figure 8 is a cross-sectional view of the wear layer of the present invention in the form of a ring.
Wherein, 1, crystalline lens; 2. a diffractive structure; 3. an annular groove; 31. a notch; 4. an anti-wear layer; 41. punching micropores; 42. a gap; 43. and connecting points.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the utility model, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting the utility model.
Example 1: as shown in fig. 3-8, the present invention provides a technical solution: an anti-abrasion multifocal intraocular lens comprises an oval lens 1 body, wherein the front surface of an optical structure of the lens 1 is provided with at least one annular diffraction structure 2, an annular groove 3 is formed between the diffraction structures, a flat-shaped anti-abrasion layer 4 is arranged at the position of a notch 31 of the annular groove 3, the notch 31 of the annular groove 3 is shielded by the anti-abrasion layer 4, and the abrasion of the diffraction structure on the surface of the lens is reduced by arranging the anti-abrasion layer on the multifocal intraocular lens.
A preparation method of an anti-abrasion multifocal intraocular lens comprises the following steps:
(1) preparing a support material and an intraocular lens material;
(2) respectively adding a supporting material and an artificial lens material into two material boxes of the double-nozzle 3D printer;
(3) receiving a patient lens drawing sent by a medical institution, and establishing a corresponding intraocular lens model with an anti-abrasion layer, wherein a part of a lens body corresponds to an intraocular lens material, and a part of an annular groove corresponds to a supporting material;
(4) according to a model generation program, a nozzle of an intraocular lens material starts to work, layered printing is started from bottom to top, when the part of the annular groove is printed, the nozzle of the intraocular lens material stops working, the coordinate position of a printer translation mechanism is kept unchanged, the nozzle is switched to a supporting material nozzle to finish the printing of the supporting material of the part of the annular groove, then the coordinate position of the printer translation mechanism is kept unchanged, and the nozzle is switched back to the intraocular lens material nozzle to continue printing until the layer is printed;
(5) repeating the step (4) to finish printing each layer until the printing of the artificial lens body is finished;
(6) piercing the side of the body of the intraocular lens 1 by means of a needle-punching device until the innermost diffractive structure 2 is pierced;
(7) injecting a solvent capable of dissolving the support material through the puncture hole in the step (6) to dissolve the support material, then extracting the dissolved support material, repeatedly cleaning the interior through the puncture hole, and finally sealing the hole;
(8) and (5) carrying out post-treatment on the initial product obtained in the step (7) to obtain a finished product of the intraocular lens.
Today advocate accurate medical treatment, everyone is different to intraocular lens's demand, and traditional manufacturing method is not convenient enough, so this application uses the method of 3D printing, to everyone different demand, customization intraocular lens.
Example 2: in this embodiment, the embodiment 1 is further limited, the wear-resistant layer 4 of the present invention is a plane with one layer as a whole, and air is filled between the wear-resistant layer 4 and the annular groove 3.
A preparation method of an anti-abrasion multifocal intraocular lens comprises the following steps:
(1) preparing a support material and an intraocular lens material;
(2) respectively adding a supporting material and an artificial lens material into two material boxes of the double-nozzle 3D printer;
(3) receiving a patient lens drawing sent by a medical institution, and establishing a corresponding intraocular lens model with an anti-abrasion layer, wherein a part of a lens body corresponds to an intraocular lens material, and a part of an annular groove corresponds to a supporting material;
(4) according to a model generation program, a nozzle of an intraocular lens material starts to work, layered printing is started from bottom to top, when the part of the annular groove is printed, the nozzle of the intraocular lens material stops working, the coordinate position of a printer translation mechanism is kept unchanged, the nozzle is switched to a supporting material nozzle to finish the printing of the supporting material of the part of the annular groove, then the coordinate position of the printer translation mechanism is kept unchanged, and the nozzle is switched back to the intraocular lens material nozzle to continue printing until the layer is printed;
(5) repeating the step (4) to finish printing each layer until the printing of the artificial lens body is finished;
(6) piercing the side of the body of the intraocular lens 1 by means of a needle-punching device until the innermost diffractive structure 2 is pierced;
(7) injecting a solvent capable of dissolving the support material through the puncture hole in the step (6) to dissolve the support material, then extracting the dissolved support material, repeatedly cleaning the interior through the puncture hole, and finally sealing the hole;
(8) and (5) carrying out post-treatment on the initial product obtained in the step (7) to obtain a finished product of the intraocular lens.
Example 3: in this embodiment, the embodiment 2 is further limited, and the wear-resistant layer 4 of the present invention is provided with the needle-punched micro holes 41 at the positions corresponding to the annular grooves 3 for the exchange of the liquid between the inside and the outside.
A preparation method of an anti-abrasion multifocal intraocular lens comprises the following steps:
(1) preparing a support material and an intraocular lens material;
(2) respectively adding a supporting material and an artificial lens material into two material boxes of the double-nozzle 3D printer;
(3) receiving a patient lens drawing sent by a medical institution, and establishing a corresponding intraocular lens model with an anti-abrasion layer, wherein a part of a lens body corresponds to an intraocular lens material, and a part of an annular groove corresponds to a supporting material;
(4) according to a model generation program, a nozzle of an intraocular lens material starts to work, layered printing is started from bottom to top, when the part of the annular groove is printed, the nozzle of the intraocular lens material stops working, the coordinate position of a printer translation mechanism is kept unchanged, the nozzle is switched to a supporting material nozzle to finish the printing of the supporting material of the part of the annular groove, then the coordinate position of the printer translation mechanism is kept unchanged, and the nozzle is switched back to the intraocular lens material nozzle to continue printing until the layer is printed;
(5) repeating the step (4) to finish printing each layer until the printing of the artificial lens body is finished;
(6) piercing the side of the body of the intraocular lens 1 by means of a needle-punching device until the innermost diffractive structure 2 is pierced;
(7) injecting a solvent capable of dissolving the support material through the puncture hole in the step (6) to dissolve the support material, then extracting the dissolved support material, repeatedly cleaning the interior through the puncture hole, and finally sealing the hole;
(8) arranging acupuncture micropores 41 on the lens body processed in the step (7) at the position corresponding to the annular groove 3 on the anti-abrasion layer 4.
(9) And (5) carrying out post-treatment on the initial product obtained in the step (8) to obtain a finished intraocular lens.
Example 4: the present embodiment is further limited to embodiment 1, in which the anti-wear layer 4 of the present invention is an annular anti-wear layer 4 that extends from the notch 31 of the annular groove 3 to the annular central plane, the number of the annular anti-wear layers 4 is equal to the number of the diffraction structures 2, the multiple annular anti-wear layers 4 form a concentric annular structure, a gap 42 for exchanging internal and external liquids is formed between the anti-wear layer 4 and the diffraction structure 2 corresponding to the inner ring of the anti-wear layer 4, and preferably, a connection point 43 is disposed at the gap 42 between the anti-wear layer 4 and the diffraction structure 2 corresponding to the inner ring of the anti-wear layer 4.
A preparation method of an anti-abrasion multifocal intraocular lens comprises the following steps:
(1) preparing a support material and an intraocular lens material;
(2) respectively adding a supporting material and an artificial lens material into two material boxes of the double-nozzle 3D printer;
(3) receiving a patient lens drawing sent by a medical institution, and establishing a corresponding intraocular lens model with an anti-abrasion layer, wherein a part of a lens body corresponds to an intraocular lens material, and a part of an annular groove corresponds to a supporting material;
(4) according to a model generation program, a nozzle of an intraocular lens material starts to work, layered printing is started from bottom to top, when the part of the annular groove is printed, the nozzle of the intraocular lens material stops working, the coordinate position of a printer translation mechanism is kept unchanged, the nozzle is switched to a supporting material nozzle to finish the printing of the supporting material of the part of the annular groove, then the coordinate position of the printer translation mechanism is kept unchanged, and the nozzle is switched back to the intraocular lens material nozzle to continue printing until the layer is printed;
(5) repeating the step (4) to finish printing each layer until the printing of the artificial lens body is finished;
(6) piercing the side of the body of the intraocular lens 1 by means of a needle-punching device until the innermost diffractive structure 2 is pierced;
(7) injecting a solvent capable of dissolving the support material through the puncture hole in the step (6) to dissolve the support material, then extracting the dissolved support material, repeatedly cleaning the interior through the puncture hole, and finally sealing the hole;
(8) and (4) forming a plurality of layers of concentric annular gaps on the wear-resistant layer at the positions corresponding to the annular grooves by taking the center of the annular groove as the center of a circle on the lens body processed in the step (7).
(9) And (5) carrying out post-treatment on the initial product obtained in the step (8) to obtain a finished intraocular lens.
Example 5: in this embodiment, the embodiment is further limited to embodiment 1, the wear-resistant layer material of the present invention is at least one of silica gel, polymethyl methacrylate, hydrophilic acrylate, hydrophobic acrylate, and hydrogel, and the wear-resistant layer material is the same as the lens body material
Example 6: in this embodiment, examples 1 to 5 are further defined, the support material of the present invention is a wax-type support material, and the solvent capable of dissolving the support material is an organic mixed solvent prepared by uniformly stirring an alcohol organic solvent, an alcohol polymer organic solvent and vegetable oil in a certain ratio.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.

Claims (10)

1. An abrasion resistant multifocal intraocular lens comprising an elliptical lens body with an anterior surface having at least one annular diffractive structure forming an annular groove, characterized in that: the notch part of the annular groove is provided with a plane-shaped anti-abrasion layer, and the anti-abrasion layer shields the notch of the annular groove.
2. The wear resistant multifocal intraocular lens of claim 1 wherein: the anti-abrasion layer is arranged on the plane of one integral layer.
3. The wear resistant multifocal intraocular lens of claim 2, wherein: and the positions of the abrasion-proof layer corresponding to the annular grooves are provided with acupuncture micropores.
4. The wear resistant multifocal intraocular lens of claim 1 wherein: the anti-abrasion layer is an annular anti-abrasion layer extending from the notch of the annular groove to the annular central plane, the number of the annular anti-abrasion layers is equal to the number of layers of the diffraction structure, and the annular anti-abrasion layers form a concentric annular structure.
5. The wear resistant multifocal intraocular lens of claim 1 wherein: the anti-abrasion layer material is at least one of silica gel, polymethyl methacrylate, hydrophilic acrylate, hydrophobic acrylate and hydrogel, and is the same as the lens body material.
6. A preparation method of an anti-abrasion multifocal intraocular lens is characterized by comprising the following steps: the method comprises the following steps:
(1) preparing a support material and an intraocular lens material;
(2) respectively adding a supporting material and an artificial lens material into two material boxes of the double-nozzle 3D printer;
(3) receiving a patient lens drawing sent by a medical institution, and establishing a corresponding intraocular lens model with an anti-abrasion layer, wherein a part of a lens body corresponds to an intraocular lens material, and a part of an annular groove corresponds to a supporting material;
(4) according to a model generation program, a nozzle of an intraocular lens material starts to work, layered printing is started from bottom to top, when the part of the annular groove is printed, the nozzle of the intraocular lens material stops working, the coordinate position of a printer translation mechanism is kept unchanged, the nozzle is switched to a supporting material nozzle to finish the printing of the supporting material of the part of the annular groove, then the coordinate position of the printer translation mechanism is kept unchanged, and the nozzle is switched back to the intraocular lens material nozzle to continue printing until the layer is printed;
(5) repeating the step (4) to finish printing each layer until the printing of the artificial lens body is finished;
(6) perforating the side of the intraocular lens body by a needle punching device until the innermost diffractive structure is pierced;
(7) injecting a solvent capable of dissolving the support material through the puncture hole in the step (6) to dissolve the support material, then extracting the dissolved support material, repeatedly cleaning the interior through the puncture hole, and finally sealing the hole;
(8) and (5) carrying out post-treatment on the initial product obtained in the step (7) to obtain a finished product of the intraocular lens.
7. The method of claim 6 wherein said method comprises the steps of: and (4) arranging acupuncture micropores on the part, corresponding to the annular groove, of the lens body processed in the step (7) on the anti-abrasion layer.
8. The method of claim 6 wherein said method comprises the steps of: and (4) arranging a plurality of layers of concentric annular gaps on the wear-resistant layer at the positions corresponding to the annular grooves by taking the center of the annular groove as the center of a circle in the lens body processed in the step (7).
9. The method of making an intraocular lens of claims 6 to 8, wherein the method comprises: the supporting material is a wax type supporting material, and the solvent capable of dissolving the supporting material is an alcohol organic solvent, an alcohol polymer organic solvent and vegetable oil which are uniformly stirred according to a certain proportion to prepare an organic mixed solvent.
10. An anti-abrasion multifocal intraocular lens is prepared and produced by a preparation method of the anti-abrasion multifocal intraocular lens.
CN202111370829.7A 2021-11-18 2021-11-18 Anti-abrasion multifocal intraocular lens and preparation method thereof Active CN114041901B (en)

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CN202111370829.7A CN114041901B (en) 2021-11-18 2021-11-18 Anti-abrasion multifocal intraocular lens and preparation method thereof

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WO2014074937A1 (en) * 2012-11-09 2014-05-15 Staar Surgical Company Free form progressive multifocal refractive lens for cataract and refractive surgery
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CN108135691A (en) * 2015-10-02 2018-06-08 英国瑞纳人工晶体有限公司 Multifocal lens and the method for manufacturing multifocal lens
CN210990931U (en) * 2019-07-31 2020-07-14 无锡蕾明视康科技有限公司 Multi-focus artificial lens
TW202125041A (en) * 2019-12-18 2021-07-01 瑞士商愛爾康公司 Hybrid diffractive and refractive contact lens

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