CN105652467A - Therapeutic presbyopia correction cornea contact lens - Google Patents
Therapeutic presbyopia correction cornea contact lens Download PDFInfo
- Publication number
- CN105652467A CN105652467A CN201610119959.6A CN201610119959A CN105652467A CN 105652467 A CN105652467 A CN 105652467A CN 201610119959 A CN201610119959 A CN 201610119959A CN 105652467 A CN105652467 A CN 105652467A
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- China
- Prior art keywords
- lens
- therapeutic
- presbyopia
- contact lens
- diameter
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
- G02C7/046—Contact lenses having an iris pattern
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
- G02C7/049—Contact lenses having special fitting or structural features achieved by special materials or material structures
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/16—Shades; shields; Obturators, e.g. with pinhole, with slot
- G02C7/165—Shades; shields; Obturators, e.g. with pinhole, with slot with stenopaeic apertures
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
The invention discloses a therapeutic presbyopia correction cornea contact lens which comprises a lens body. An optical area of the lens body is composed of a central color-printing area and lens central small holes, total diameter D of the lens body is 13-15mm, diameter D1 of the optical area is 10-12mm, base curve curvature radius R of the optical area is 8.2-8.8mm, diameter D2 of the central color-printing area is 10-12mm, diameter D3 of the central small holes is 1.3-2.0mm, water content of the lens body is greater than 50%, the therapeutic presbyopia correction cornea contact lens is provided with a lens material high in oxygen permeability coefficient, and thickness of the lens body is 0.055-0.10mm. By adopting the therapeutic presbyopia correction cornea contact lens, the center of the lens body is positioned well after a patient wears the lens, the lens is high in comfort and safety, small hole effect is brought into effective play, aberration is lowered, and the lens can well correct presbyopia of people using the lens, gives consideration to multi-distance eyesight and improves bad visual symptoms. The therapeutic presbyopia correction cornea contact lens has the advantages of reasonable structure, remarkable effect, high safety and comfort.
Description
Technical field
The present invention relates to soft corneal contact lens field, particularly to the corneal contact lens that a kind of therapeutic presbyopia is corrected.
Background technology
The principle that presbyopia is corrected is to pass through the optical imaging procedures changing eye to compensate the regulating power declined. Its main technical principle is: 1. changed by single refractive status so that eyes can be at the state of single being clear; 2. by creating the bifocus of eyes or multiple-point focusing region so that depending on remote, depending on closely can carry out simultaneously; 3. changed by refractive status different between eyes, form the difference simultaneously looked with mono-vision, make dominant eye and non-dominant eye respectively take charge of depending on remote and look nearly function, a degree of take into account near, in, remote vision.
In order to reach above-described refractive status, the antidote of presbyopia is broadly divided into operation and the big class of No operation two. Operative correction presbyopia, is perform the operation at the different parts of cornea, crystalline lens or sclera, reaches to correct the effect of presbyopia by " moulding " and " implant " two ways. And non-operative treatment, mainly by framework mirror or the corneal contact lens of additional different optical properties before eyes thus reaching the purpose corrected.
At present, cornea refractive surgery or the mono-vision after intraocular lens implants, and the method that Multifocal intraocular lens is implanted is widely used in the correcting process of presbyopia. And the innovation along with cornea refractive surgery technology, a kind of new corneal stroma implant--insert in aperture cornea, pin hole effect can be passed through and increase the depth of field, thus improving distance vision near, middle, and do not produce distant vision to have a strong impact on, opened new chapter with the advantage of its uniqueness for the operation method that presbyopia is corrected. But, there is very big application limitation because it is inevitably invasive in operative correction method. By contrast, No operation presbyopia antidote is non-invasive always for the extensive use of people institute because of it. But in the selection of non-operative treatment, framework mirror is corrected, be no matter monochromatic light mirror, double; two light microscopic also or multifocal Progressive addition lens, all because the optical defect of eyeglass self makes the corneal contact lens that its advantage will be excellent lower than visual quality. Although corneal contact lens has mono-vision type, looks type bifocus and multifocal progressive Mutiple Choice simultaneously, but, wear mirror difficulty taken into account far by pupil size restriction simultaneously, in, near vision, and destroy the also a degree of corneal contact lens rectification selection constraining presbyopia of the defect of binocular visual function because of mono-vision.
As can be seen here, desirable presbyopia antidote should have following characteristic concurrently: noinvasive, reversible, can take into account simultaneously remote, in and near vision, do not destroy binocular visual function, have superior visual quality.Therefore, one is soft, breathability, aperture presbyopia are corrected corneal contact lens and arisen at the historic moment, and become the only selection that presbyopia is corrected.
Summary of the invention
The present invention overcomes at least one defect (deficiency) described in above-mentioned prior art, it is provided that a kind of therapeutic presbyopia corrects corneal contact lens, is a kind of therapeutic presbyopia rectification corneal contact lens providing visual quality non-invasive, high for presbyopia patient.
To achieve these goals, the technical scheme is that
A kind of therapeutic presbyopia corrects corneal contact lens, includes eyeglass, and the light school district of described eyeglass is made up of red ink paste used for seals district of central authorities and eyeglass central aperture two parts.
When using this eyeglass, increasing the depth of field by pin hole effect, thus improving distance vision near, middle, and not producing distant vision to have a strong impact on.
Described eyeglass overall diameter D is 13��15mm, and optical area diameter D1 is 10��12mm, and light school district base curve radius of curvature R is 8.2��8.8mm, and central authorities red ink paste used for seals district diameter D2 is 10��12mm, and eyeglass central aperture diameter D3 is 1.3��2.0mm,
The material of described eyeglass is water content > 50%, and the material that oxygen permeability coefficient Dk is more than 90, and lens thickness is 0.055��0.10mm.
Preferably, red ink paste used for seals district of central authorities has individual character control, the colour of lens that namely red ink paste used for seals district of central authorities can be suitable for according to the color customization of self iris.
Compared with prior art, technical solution of the present invention provides the benefit that:
The present invention is according to normal person in middle and old age Aisan anterior surface of cornea topographic(al) data, it is proposed that the smelting property treated presbyopia corrects the front surface of contact lens, by changing size and the radius of curvature of eyeglass so that patient-worn's rear lens centralized positioning is good.
The selection of high-moisture and oxygen permeability material, promotes comfort level and safety that middle-older patient eyeglass is worn. And the distribution situation according to patient age, selects the eyeglass of different hole diameter, effectively plays keyhole effect, reduces aberration, corrects the presbyopia of use crowd preferably, take into account many distances vision and improve bad visual symptoms. There is advantage rational in infrastructure, that effect is notable, safe, comfortable.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is globoidal structure schematic diagram of the present invention.
In figure, 1-light school district, red ink paste used for seals district of 2-central authorities, D-eyeglass overall diameter, D1-optical area diameter, D2-central authorities red ink paste used for seals district diameter, D3-central aperture diameter, R-base curve radius of curvature, CT-lens center thickness.
Detailed description of the invention
Accompanying drawing being merely cited for property explanation, it is impossible to be interpreted as the restriction to this patent; In order to the present embodiment is better described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof are likely to omission and will be understood by. Below in conjunction with drawings and Examples, technical scheme is described further.
The present invention is die forming, and in die forming process, mould is gone to the bottom and determined eyeglass base curve, and mould upper cover determines eyeglass luminosity.
A kind of therapeutic presbyopia provided by the present invention corrects corneal contact lens (PresbyopiaCorrectionContactLens, PCCL) eyeglass is by flower-pattern layer, high polymer layer, light shield layer and edge rete 4 part composition, wherein described flower-pattern layer (L1), play color make-up effect, the lower surface of high polymer layer (L2) is attached with the first transparent coating layer by the covalent coupling method in macromolecular material polymerization, the upper surface of flower-pattern layer is attached with the second transparent coating layer by covalent coupling method, prevent flower-pattern layer from decolouring, and prevent high polymer layer, it is shifted between light shield layer and flower-pattern layer.The periphery of the second transparent coating layer is attached to described high polymer layer by covalent coupling method. High polymer layer material: be made up of PMMA, RGP, PHEMA, PMMA and NVP copolymer, HEMA and MAA copolymer, IPN, polyurethane hydrogel or fibroin, the material adopted at present is 38%(HEMA).
As shown in Figure 1, a kind of therapeutic presbyopia provided by the present invention corrects corneal contact lens (PresbyopiaCorrectionContactLens, PCCL), include eyeglass, the light school district of its eyeglass is made up of red ink paste used for seals district of central authorities and eyeglass central aperture two parts, wherein described optic diameter (D) is 13��15mm, optical area diameter (D1) is 10��12mm, light school district base curve radius of curvature (R) is 8.2��8.8mm, central authorities red ink paste used for seals district diameter (D2) are 10��12mm, and central aperture diameter (D3) is 1.3��2.0mm.
As in figure 2 it is shown, the base curve radius of curvature R of the light school district 1 described in the present invention is 8.2��8.8mm, lens center thickness CT is 0.055��0.10mm. The material of the eyeglass that the present embodiment adopts is water content > 50%, and the material that oxygen permeability coefficient Dk is more than 90.
Therapeutic presbyopia provided by the present invention corrects corneal contact lens (PresbyopiaCorrectionContactLens, PCCL), by changing size and the radius of curvature of eyeglass so that patient-worn's rear lens centralized positioning is good. The selection of high-moisture and high oxygen permeability material, promotes comfort level and safety that middle-older patient eyeglass is worn. And the distribution situation according to patient age, selects the eyeglass of different hole diameter, effectively plays keyhole effect, reduces aberration, corrects the presbyopia of use crowd preferably, take into account many distances vision and improve bad visual symptoms. There is advantage rational in infrastructure, that effect is notable, safe, comfortable.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not the restriction to embodiments of the present invention. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without also cannot all of embodiment be given exhaustive. All any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within the protection domain of the claims in the present invention.
Claims (4)
1. therapeutic presbyopia corrects a corneal contact lens, includes eyeglass, it is characterised in that the light school district of described eyeglass is made up of red ink paste used for seals district of central authorities and eyeglass central aperture two parts.
2. therapeutic presbyopia according to claim 1 corrects corneal contact lens, it is characterised in that described eyeglass overall diameter D is 13��15mm, optical area diameter D1 is 10��12mm, light school district base curve radius of curvature R is 8.2��8.8mm, and central authorities red ink paste used for seals district diameter D2 is 10��12mm
The material of described eyeglass is water content > 50%, and the material that oxygen permeability coefficient Dk is more than 90,
Lens thickness is 0.055��0.10mm.
3. therapeutic presbyopia according to claim 1 corrects corneal contact lens, it is characterised in that described eyeglass central aperture diameter D3 is 1.3��2.0mm.
4. therapeutic presbyopia according to claim 1 corrects corneal contact lens, it is characterised in that red ink paste used for seals district of described central authorities has individual character control, the colour of lens that namely red ink paste used for seals district of central authorities can be suitable for according to the color customization of self iris.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610119959.6A CN105652467A (en) | 2016-03-03 | 2016-03-03 | Therapeutic presbyopia correction cornea contact lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610119959.6A CN105652467A (en) | 2016-03-03 | 2016-03-03 | Therapeutic presbyopia correction cornea contact lens |
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| Publication Number | Publication Date |
|---|---|
| CN105652467A true CN105652467A (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610119959.6A Pending CN105652467A (en) | 2016-03-03 | 2016-03-03 | Therapeutic presbyopia correction cornea contact lens |
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| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125835U (en) * | 1992-03-23 | 1992-12-23 | 马丙法 | Small hole contact lens |
| CN2430714Y (en) * | 1999-12-20 | 2001-05-16 | 程杰 | Artificial iris glasses |
| CN101909539A (en) * | 2007-10-29 | 2010-12-08 | 梁俊忠 | Methods and devices for refractive treatments of presbyopia |
| CN102597855A (en) * | 2009-10-20 | 2012-07-18 | 株式会社国际视野 | Soft contact lens |
| CN104834107A (en) * | 2015-01-29 | 2015-08-12 | 广州琦安琦视觉科技有限公司 | Myopic out-of-focus functional contact lens |
| CN104849875A (en) * | 2015-05-06 | 2015-08-19 | 王昱程 | Corneal contact lens |
| CN205427352U (en) * | 2016-03-03 | 2016-08-03 | 中山大学中山眼科中心 | Treatment nature is looked always and is corrected contact lens |
-
2016
- 2016-03-03 CN CN201610119959.6A patent/CN105652467A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125835U (en) * | 1992-03-23 | 1992-12-23 | 马丙法 | Small hole contact lens |
| CN2430714Y (en) * | 1999-12-20 | 2001-05-16 | 程杰 | Artificial iris glasses |
| CN101909539A (en) * | 2007-10-29 | 2010-12-08 | 梁俊忠 | Methods and devices for refractive treatments of presbyopia |
| CN102597855A (en) * | 2009-10-20 | 2012-07-18 | 株式会社国际视野 | Soft contact lens |
| CN104834107A (en) * | 2015-01-29 | 2015-08-12 | 广州琦安琦视觉科技有限公司 | Myopic out-of-focus functional contact lens |
| CN104849875A (en) * | 2015-05-06 | 2015-08-19 | 王昱程 | Corneal contact lens |
| CN205427352U (en) * | 2016-03-03 | 2016-08-03 | 中山大学中山眼科中心 | Treatment nature is looked always and is corrected contact lens |
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Application publication date: 20160608 |
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