CN101559009B - Corneal contact lens with iris - Google Patents
Corneal contact lens with iris Download PDFInfo
- Publication number
- CN101559009B CN101559009B CN 200910059396 CN200910059396A CN101559009B CN 101559009 B CN101559009 B CN 101559009B CN 200910059396 CN200910059396 CN 200910059396 CN 200910059396 A CN200910059396 A CN 200910059396A CN 101559009 B CN101559009 B CN 101559009B
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- iris
- lens
- contact lens
- corneal contact
- layer
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Abstract
The invention discloses a corneal contact lens with iris, and belongs to the technical field of ophthalmic correction treatment and manufacture of contact lens. The corneal contact lens comprises a lens; the lens has a three-layer structure and consists of an inner layer, a surface layer and an interlayer; the inner layer and the surface layer are transparent layers; the interlayer consists of an iris invariable part in an annular region within central diameter of between 4 and 11 mm of the lens and an iris allochroic part in an annular region within central diameter of between 2 and 4 mm of the lens (or a circular region with central diameter of 4 mm of the lens); the iris invariable part is a lighttight layer; and the iris allochroic part is a photochromic layer. The corneal contact lenshas the advantages that the corneal contact lens has convenient and safe use and convenient replacement, avoids intraocular inflammation reaction, and the like, and greatly lightens the economic burd en of patients. The corneal contact lens is suitable for the patient with lost or damaged iris.
Description
Affiliated technical field
The present invention relates to a kind of corneal contact lens, especially therapeutic corneal contact lens belongs to ophthalmology correction treatment and contact lens manufacturing technology field.
Background technology
At present; Because the irideremia due to a variety of causes or the most acceptance of patient of damage will be implanted interior eye with the intraocular lens and the artificial iris of iris, be used to regulate the amount of light that gets into ophthalmic, alleviate miseries such as photophobia; Reduce the spherical aberration of suffering from eye, improve vision and visual quality.But clinical observation confirms that its long term complication is serious, and the development of new interior eye colored materials needs the very long clinical preceding and Clinical detection time, and the artificial iris produce market of safety presents blank at present.Iris damage patient is badly in need of a kind of clinical substitute products.
Summary of the invention
For the intraocular lens that overcomes existing band iris and artificial iris produce the deficiency of long term complication, the present invention provide a kind of need not implant in the corneal contact lens of band iris of eye.
The technical solution adopted for the present invention to solve the technical problems is: the corneal contact lens of band iris; Comprise eyeglass; Eyeglass is a three-decker; Be made up of internal layer, top layer and interlayer, internal layer and top layer are clear layer, and interlayer is made up of constant iridallochrosis portion with center of lens diameter 2-4mm annular region of iris of center of lens diameter 4-11mm annular region; Constant 3-1 of iris is light non-transmittable layers, and the 3-2 of iridallochrosis portion is a photochromatic layer.
The invention has the beneficial effects as follows that owing to need not implant interior eye, can not cause the corresponding complication of eye, this product will be taken over the intraocular lens market of band iris, and become a kind of regeneration product.Compare with the intraocular lens or the artificial iris of band iris diaphragm, the present invention has easy to use, safe, is convenient for changing, and avoids advantages such as ocular inflammatory response, and has greatly alleviated patient's financial burden.
Description of drawings
Fig. 1 is a population structure sketch map of the present invention (profile);
Fig. 2 is front view of the present invention (under the ordinary ray);
Fig. 3 is front view of the present invention (under the high light);
Fig. 4 is an another embodiment of the present invention population structure sketch map (profile);
Fig. 5 is another embodiment of the present invention front view (under the ordinary ray);
Fig. 6 is another embodiment of the present invention front view (under the high light).
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
The corneal contact lens of band iris; Comprise eyeglass; Eyeglass is a three-decker; Be made up of internal layer 1, top layer 2 and interlayer 3, internal layer 1 is a clear layer with top layer 2, and interlayer 3 is made up of constant the 3-1 of iris of center of lens diameter 4-11mm annular region and the 3-2 of iridallochrosis portion of center of lens diameter 2-4mm annular region; Constant 3-1 of iris is light non-transmittable layers, and the 3-2 of iridallochrosis portion is a photochromatic layer.Like Fig. 1-3.
Constant 3-1 of iris is pale brown-dark-brown or pale green-light blue.
The 3-2 of iridallochrosis portion is the border circular areas of center of lens diameter 4mm.As another kind of embodiment.Like Fig. 4-6.
The 3-2 of iridallochrosis portion is organic off-color material diarylethene, fulgide, spiro-pyrans, spiral shell piperazine or azo, or inorganic off-color material AgCl, or the nano-particle of above-mentioned material.
Under ordinary ray, the colourless printing opacity of the 3-2 of iridallochrosis portion, like Fig. 2,5, under high light, the 3-2 of iridallochrosis portion becomes coloured semi-transparent, like Fig. 3,6, plays the grating effect of iris.
Adopting the preparation technology of soft colorful corneal contact lens, is substrate with poly hydroxy ethyl acrylate (HEMA), adds stronger monomer N one vinyl pyrrolidone (NVP) of hydrophilic as adjuvant.Corneal contact lens is made as three-decker, and internal layer 1 is a clear layer with top layer 2, and constant 3-1 coats colored materials with iris in the interlayer 3, for semi-transparent layer, will have color range to be confined to the annular region of center of lens diameter 4-11mm; This district is equivalent to size indoor or iris when pupil slightly enlarges under the half-light line.The 3-2 of iridallochrosis portion in the interlayer 3 is coated photochromic material, this scope is confined at the annular region of center of lens diameter 2-4mm or the border circular areas of center of lens diameter 4mm.Different according to colour system, can select to add diarylethene, fulgide, spiro-pyrans, spiral shell piperazine, azo class and relevant heterocyclic compound, or add inorganic off-color material AgCl.The scope that iris changed when this scope was equivalent to meet high light.Can with iris constant 3-1 making becoming pale yellow, pale brown, dark-brown, supply asian ancestry patient to select according to material different; Be made into pale green, light blue, supply American-European patient to select.
Claims (4)
1. corneal contact lens with iris; Comprise eyeglass; It is characterized in that eyeglass is a three-decker, constitute by internal layer (1), top layer (2) and interlayer (3); Internal layer (1) and top layer (2) are clear layer, and interlayer (3) is made up of the iridallochrosis portion (3-2) of iris of center of lens diameter 4-11mm annular region constant (3-1) and center of lens diameter 2-4mm annular region; Iris constant (3-1) is a light non-transmittable layers, and iridallochrosis portion (3-2) is a photochromatic layer.
2. the corneal contact lens of band iris according to claim 1 is characterized in that, described iris constant (3-1) is pale brown, dark-brown, pale green or light blue.
3. the corneal contact lens of band iris according to claim 1 is characterized in that, described iridallochrosis portion (3-2) is the border circular areas of center of lens diameter 4mm.
4. the corneal contact lens of band iris according to claim 1 is characterized in that, described iridallochrosis portion (3-2) is diarylethene, fulgide, spiro-pyrans, spiral shell piperazine, azo or AgCl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910059396 CN101559009B (en) | 2009-05-25 | 2009-05-25 | Corneal contact lens with iris |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910059396 CN101559009B (en) | 2009-05-25 | 2009-05-25 | Corneal contact lens with iris |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101559009A CN101559009A (en) | 2009-10-21 |
| CN101559009B true CN101559009B (en) | 2012-06-06 |
Family
ID=41218105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910059396 Expired - Fee Related CN101559009B (en) | 2009-05-25 | 2009-05-25 | Corneal contact lens with iris |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101559009B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102090941B (en) * | 2011-02-17 | 2016-01-20 | 史晓春 | There is the artificial iris of metachrosis |
| CN109477990A (en) * | 2016-04-13 | 2019-03-15 | 埃弗里克斯股份有限公司 | Ophthalmic articles with interference light filter |
| CN107515478A (en) * | 2017-09-13 | 2017-12-26 | 张德全 | Iris equivalent mirror |
| CN109597217B (en) * | 2019-01-29 | 2020-08-25 | 京东方科技集团股份有限公司 | Corneal contact lens |
| CN111358619A (en) * | 2020-04-13 | 2020-07-03 | 电子科技大学 | Macular protective keratoscope and instrument kit for ophthalmic surgery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162254A (en) * | 1994-10-06 | 1997-10-15 | 弗拉基米尔·法因戈德 | Intraocular contact lens and method of implantation |
| GB2407270A (en) * | 2003-10-24 | 2005-04-27 | Martin Lister | Eye piece |
| CN1694658A (en) * | 2002-09-13 | 2005-11-09 | 眼科科学公司 | Devices and methods for improving vision |
| WO2008103754A2 (en) * | 2007-02-21 | 2008-08-28 | Tseng Janet C | Aesthetic intraocular implant |
| CN101322663A (en) * | 2007-06-14 | 2008-12-17 | 苏州六六视觉科技股份有限公司 | Intraocular lens with iris diaphragm |
-
2009
- 2009-05-25 CN CN 200910059396 patent/CN101559009B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162254A (en) * | 1994-10-06 | 1997-10-15 | 弗拉基米尔·法因戈德 | Intraocular contact lens and method of implantation |
| CN1694658A (en) * | 2002-09-13 | 2005-11-09 | 眼科科学公司 | Devices and methods for improving vision |
| GB2407270A (en) * | 2003-10-24 | 2005-04-27 | Martin Lister | Eye piece |
| WO2008103754A2 (en) * | 2007-02-21 | 2008-08-28 | Tseng Janet C | Aesthetic intraocular implant |
| CN101322663A (en) * | 2007-06-14 | 2008-12-17 | 苏州六六视觉科技股份有限公司 | Intraocular lens with iris diaphragm |
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| Publication number | Publication date |
|---|---|
| CN101559009A (en) | 2009-10-21 |
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Granted publication date: 20120606 Termination date: 20140525 |