CN101078815B - Contact lens - Google Patents
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- CN101078815B CN101078815B CN200610084857A CN200610084857A CN101078815B CN 101078815 B CN101078815 B CN 101078815B CN 200610084857 A CN200610084857 A CN 200610084857A CN 200610084857 A CN200610084857 A CN 200610084857A CN 101078815 B CN101078815 B CN 101078815B
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- contact lenses
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Abstract
The invention relates to a contact lens, comprising a main body. The main body has a periphery, which has the shape with at least a pattern. The pattern can be arc, angle, square, angle after chamfering or square after chambering and so on. By the pattern wetness index of contact lens can be increased and foreign body sensation can be decreased. Comfort and stability are increased. The biggest width of contact lens is smaller than an upper-limit value so that it can not be limited by peripheral muscle of eyeball when the contact lens covers eyeball.
Description
Technical field
The present invention relates to a kind of contact lenses, refer to that especially the periphery of contact lenses has the shape of at least one pattern.
Background technology
For a long time, impaired and the degeneration of eye eyesight is being perplexed people for a long time, especially after the industrial revolution, information revolution, people's life, is then come the information age to industry and commerce society now by agricultural society, along with the generation of information explosion phenomenon, the modern must spend more time and energy goes to receive more information, in this case, eyes institute role is arduous especially, and its importance more wins in the past.But also with regard to increasing the weight of because of the work deal, cause the visually impaired ratio of modern to increase, the degree of vision degeneration is also continuing rising, no matter be wearing glasses in the mode of correcting defects of vision of the most normal use of operation, the maintenance of eyes at ordinary times or common people this moment, and various technology that help to improve eyesight have active demand especially.The mode that cost is low and spinoff is little of to say so of wherein wearing glasses.Under this tight demand, no matter be that the general traditional eyewear or the technology of contact lenses all are to make rapid progress, advance fast.
The development of glasses can push away to trace back the existence of official record glasses on Italian document to 1289 Christian eras, the development of glasses then makes progress always to some extent, especially 1488 Christian eras are because the invention of new printing technology, books circulation heightens, reading population rolls up, and the development of glasses is significantly progressive especially.1899 Christian eras, a German doctor realized the dream of Vinci, da, glass mirror is placed on the cornea corrects defects of vision and the invention contact lenses.Contact lenses are compared with traditional eyewear, because of not destroying the face mask curve and being suitable for the characteristic that some should not wear the special occasions of traditional eyewear, its development are exceedingly fast, and number of users is extremely many.Yet the structural design of level and smooth periphery is not still taken off in contact lenses development for a long time, and the effect that light other different periphery project organizations are brought, although U.S. Patent number the 4th is arranged, 435, case before No. 050, its design features is to have window type structure on this mirror body, viewpoint with structural mechanics, this structure can increase the elasticity of contact lenses structure, so when wearing, contact lenses can cornea curve preferably, and through after careful the adjustment, be suitable for astigmatism, and the design of elastic construction can increase the feasibility of use glass as the contact lenses manufacturing materials; U.S. Patent number the 4th, 618, case partly has minim channel at the inboard cornea that attaches of this contact lenses periphery before No. 227, can help tear to distribute, and increases comfortableness when wearing, and this structure is suitable for the various visual angles design, can help presbyopic rectification; U.S. Patent number the 4th, 890, case designs a supporting construction before No. 911, and this supporting construction can allow contact lenses and cornea keep a slight distance, increases the eyeball oxygen transmission rate, and also can avoid contact lenses to hinder tear flowing.But in aforementioned case, structural design is hollow out, have structures such as trench design or strip external form, its design exists increases cost, be difficult for wearing and doubt such as fragile structure, the problem that can take place when adding actual the wearing such as generation of effect that lack to consider tear and foreign body sensation, cause the design of many peripheries and can't reach ideal situation, and variety of problems all can be arranged, so that can't actual use on market.Yet present contact lenses still can cause many because dry, lack of lubrication or mechanical friction to cause problems such as the inflammation of eyes or discomfort, and more severe patient can cause visual impairment.
Therefore, how to invent out a kind of contact lenses, so that contact lenses can significantly increase wettability, reduce foreign body sensation, increase comfortableness and stability, will be that the present invention desires actively locating of discussion, hope can improve the person's that wears contact lenses quality of life and eye health by this.
Summary of the invention
Because the shortcoming of above-mentioned known contact lenses, this is as ophthalmology specialist's inventor, in clinical treatment work for many years, contact is observed many because of wearing the problem that contact lenses cause, the present existing contact lenses of thoughts are not reached perfection, then exhausting the concentrated research of its intelligence overcomes, be engaged in this industry accumulating experience for many years with it, and then develop the contact lenses that a kind of periphery has at least one pattern, increase wettability in the hope of reaching, reduce foreign body sensation, increase comfortableness and stable purpose.
Fundamental purpose of the present invention is providing a kind of contact lenses that increase wettability, reduction foreign body sensation, increase comfortableness and stability, it is by being provided with the shape of at least one pattern at this contact lenses periphery, the contact area of contact lenses and tear when wearing with increase, cause the increase of all marginal zone tear amounts and moisture-keeping function is arranged, can reduce foreign body sensation and increase comfortableness and stability.When wearing contact lenses, eyelid and contact lenses friction make contact lenses produce displacement when understanding because of nictation, and the increase of all marginal zone tear amounts among the present invention, this contact lenses quality is increased, when nictation, the increase of contact lenses quality can make contact lenses reduce because of the displacement that slip produces relatively, and increase stable, the quality of eyesight is promoted, simultaneously, the week increase of marginal zone tear amount also can increase lubricity, and the friction force in the time of can alleviating nictation also can reach the effect of stablizing contact lenses.So the present invention can reach increases wettability, reduce foreign body sensation, increase comfortableness and stable purpose.
For reaching above-mentioned purpose, the invention provides a kind of contact lenses, it comprises the contact area of contact lenses and tear when at least one pattern shape around a main body and the described main body is worn with increase, the breadth extreme of contact lenses is less than 18 millimeters, so that contact lenses be not subjected to eyeball when covering eyeball around muscle limit, the center by this main body one in the radial direction, the periphery of autonomous agent to the center of the ultimate range at the edge of this at least one pattern and main body to a ratio of the ultimate range of the periphery of main body between 1: 2 and 1: 100.Thus, can significantly increase wettability, reduction foreign body sensation, increase comfortableness and stable contact lenses to reach one.
Description of drawings
Fig. 1 is the front view of preferred embodiment contact lenses of the present invention.
Fig. 2 is the stereographic map of preferred embodiment contact lenses of the present invention.
Fig. 3 is the figure that performs of preferred embodiment contact lenses of the present invention.
Fig. 4 is the front view of the embodiment of contact lenses of the present invention.
Fig. 5 is the front view of the embodiment of contact lenses of the present invention.
Fig. 6 is the front view of the embodiment of contact lenses of the present invention.
Fig. 7 is the front view of the embodiment of contact lenses of the present invention.
Fig. 8 is the front view of the embodiment of contact lenses of the present invention.
Symbol description among the figure:
1 main body
11 peripheries
The periphery of 21 arc patterns
The periphery of 211 elliptoid arc patterns
The periphery of 22 dihedral patterns
23 peripheries through the dihedral pattern of chamfering
The periphery of 24 square patterns
25 peripheries through the square pattern of chamfering
Embodiment
In order fully to understand purpose of the present invention, feature and effect, now by following specific embodiment, and accompanying drawing shown in cooperating, the present invention is described in detail, illustrate as the back:
Fig. 1 and Fig. 2 are respectively the forward sight and the stereographic map of the preferred embodiment of contact lenses of the present invention, and as shown in the figure, a kind of contact lenses of the present invention can comprise: a main body 1 and arc pattern 21.In general, the human fine diameter of eye is about 21 millimeters (mm) to 26 millimeters, the diameter of cornea is about 11 millimeters to 12 millimeters, distance between eyeball superior rectus and the inferior rectus muscle is about 25 millimeters, and the distance between eyeball internal rectus muscle and the musculus rectus lateralis is about 24 millimeters, and contact lenses commonly used on the market at present, with rigid contact lenses, its diameter is about 8 millimeters to 11 millimeters, and with soft contact lenses, its diameter is about 12 millimeters to 16 millimeters.Therefore, the breadth extreme that the main body 1 of contact lenses of the present invention adds the pattern of upper peripheral edge 11 is set at the higher limit less than 18 millimeters, so that contact lenses be not subjected to eyeball when covering eyeball around muscle limit, for example: eyelid nictation is when driving contact lenses, still can make to produce between contact lenses and the eyeball relative move or rotate and not influenced by extraocular muscle.As contact lenses is rigid material, and then breadth extreme should be soft material as contact lenses less than corneal diameter (less than 12 millimeters), and then breadth extreme is not limited by the corneal diameter size, but as if considering the convenience of wearing, breadth extreme should be less than 16 millimeters.In addition, by main center one in the radial direction, the periphery 11 of autonomous agent 1 to the center of the ultimate range at the edge of pattern and main body 1 to a ratio of the ultimate range of the periphery 11 of main body 1 between 1: 2 and 1: 100, wherein, be preferably between 1: 4 and 1: 10.
When using contact lenses of the present invention, the periphery 11 of tool arc pattern 21 can effectively increase the girth that contact lenses contact with tear, and cause periphery 11 band tear amounts to increase, as be semicircle, because girth increases about 0.57 times, so periphery 11 tear amounts also increase about 0.57 times, it increases this contact lenses quality, according to Newtonian mechanics second law, acting force equals quality and is multiplied by acceleration, so when nictation, consider under the constant situation of acting force nictation, the increase of contact lenses quality can cause the contact lenses acceleration to reduce relatively, cause contact lenses to reduce because of the displacement that slip produces, and increase stable, the quality of eyesight is promoted, simultaneously, the increase of contact lenses periphery 11 band tear amounts also can increase lubricity, friction force in the time of can alleviating nictation, contact lenses acceleration and displacement are reduced and reach the effect of stablizing contact lenses, the increase of contact lenses periphery 11 band tear amounts also can be because of the lubricated foreign body sensation and the increase comfortableness of reducing of tear, in addition, the periphery 11 of tool arc pattern 21 can make near the arc patterns 21 that are positioned at main body 1 periphery 11 more can not accumulate secretion.
Fig. 3 is the figure that performs of preferred embodiment contact lenses of the present invention, and as shown in the figure, a kind of contact lenses of the present invention can comprise: a main body 1 and arc pattern 21.When performing contact lenses, at first set the pattern of contact lenses periphery 11, and then remove not part in the mode of turning, its can also cut or the mode of machine cuts carry out, in addition, mode that can also mold is made the mould of the contact lenses that comprise periphery 11 patterns earlier, and then waters and cast from this mould with moulding.
Fig. 4 is the front view of another embodiment of contact lenses of the present invention, and as shown in the figure, a kind of contact lenses of the present invention can comprise: a main body 1 and elliptoid arc pattern 211.This elliptoid arc pattern 211 be with the arc pattern along the elliptical path setting, its arc pattern 21 than Fig. 1 increases more girth, corresponding effect also increases.
Fig. 5 is the front view of an embodiment again of contact lenses of the present invention, and as shown in the figure, contact lenses of the present invention can comprise: a main body 1 and dihedral pattern 22.Periphery 11 designs of tool dihedral pattern 22 can increase the contact lenses girth, contact lenses periphery 11 band tear amounts are significantly increased, as be equilateral triangle, because girth increases about 1 times, so periphery 11 tear amounts also increase about 1 times, it increases wettability, stability and comfortableness and reduces foreign body sensation.
Fig. 6 is the front view of an embodiment again of contact lenses of the present invention, as shown in the figure, a kind of contact lenses of the present invention can comprise: a main body 1 and do not have sharp-pointed place through the pattern of dihedral pattern 23. after chamfering of chamfering, can possess the benefit that the periphery 11 of tool pattern brings simultaneously, and because have chamfering, when wearing, allow the user increase comfortableness, and near the chamfering that is positioned at main body 1 periphery 11 also more can not accumulated secretion.
Fig. 7 is the front view of an embodiment again of contact lenses of the present invention, and as shown in the figure, a kind of contact lenses of the present invention can comprise: a main body 1 and square pattern 24.Periphery 11 designs of square pattern 24 can significantly increase the contact lenses girth, can effectively increase contact lenses and contact girth with tear, periphery 11 band tear amounts are significantly increased, as be square, because girth increases about 2 times, so periphery 11 tear amounts also increase about 2 times, it increases wettability, stability and comfortableness and reduces foreign body sensation.
Fig. 8 is the front view of an embodiment again of contact lenses of the present invention, and as shown in the figure, a kind of contact lenses of the present invention can comprise: a main body 1 and through the square pattern 25 of chamfering.The design of the periphery 11 of the square pattern 25 of tool reduces the foreign body sensation except that wettability, stability and comfortableness are increased, because of it has more chamfering, increase comfortableness when allowing the user wear, and near the chamferings that are positioned at the periphery 11 of main body 1 also more can not accumulated secretion.
As mentioned above, the present invention meets patent three important documents fully: the utilizability on novelty, creativeness and the industry.With novelty and creative, the present invention has at least one pattern shape in the design of contact lenses periphery, and then reaches the contact lenses of increase wettability of the present invention, reduction foreign body sensation, increase comfortableness and stability; With regard to the utilizability on the industry, the product that utilizes the present invention to derive is when the demand that can fully satisfy existing market.
The present invention discloses with preferred embodiment hereinbefore, it should be understood that this embodiment only is used to describe the present invention, does not limit the scope of the invention and should not be read as yet have the knack of this operator.It should be noted,, all should be made as and be covered by in the category of the present invention such as with the variation and the displacement of this embodiment equivalence.Therefore, protection scope of the present invention when with described claim the person of being defined be as the criterion.
Claims (9)
1. contact lenses, it comprises the contact area of contact lenses and tear when at least one pattern shape around a main body and the described main body is worn with increase, it is characterized in that, the breadth extreme of contact lenses is less than 18 millimeters, so that contact lenses be not subjected to eyeball when covering eyeball around muscle limit, the center by this main body one in the radial direction, the periphery of autonomous agent to the center of the ultimate range at the edge of this at least one pattern and main body to a ratio of the ultimate range of the periphery of main body between 1: 2 and 1: 100.
2. contact lenses as claimed in claim 1, wherein, these contact lenses are rigid material, the breadth extreme of these contact lenses is less than 12 millimeters.
3. contact lenses as claimed in claim 1, wherein, these contact lenses are soft material, the breadth extreme of these contact lenses is less than 16 millimeters.
4. contact lenses as claimed in claim 1, wherein, this ratio is between 1: 4 and 1: 10.
5. contact lenses as claimed in claim 1, wherein, this pattern is an arc.
6. contact lenses as claimed in claim 1, wherein, this pattern is a dihedral.
7. contact lenses as claimed in claim 1, wherein, this pattern is the dihedral through chamfering.
8. contact lenses as claimed in claim 1, wherein, this pattern is square.
9. contact lenses as claimed in claim 1, wherein, this pattern is square through chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610084857A CN101078815B (en) | 2006-05-23 | 2006-05-23 | Contact lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610084857A CN101078815B (en) | 2006-05-23 | 2006-05-23 | Contact lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101078815A CN101078815A (en) | 2007-11-28 |
| CN101078815B true CN101078815B (en) | 2010-05-12 |
Family
ID=38906364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610084857A Expired - Fee Related CN101078815B (en) | 2006-05-23 | 2006-05-23 | Contact lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101078815B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10209534B2 (en) | 2012-03-27 | 2019-02-19 | Johnson & Johnson Vision Care, Inc. | Increased stiffness center optic in soft contact lenses for astigmatism correction |
| US20130258276A1 (en) * | 2012-03-27 | 2013-10-03 | Jonathan Hansen | Increased stiffness center optic in soft contact lenses for astigmatism correction |
| US11125916B2 (en) | 2016-07-06 | 2021-09-21 | Johnson & Johnson Vision Care, Inc. | Silicone hydrogels comprising N-alkyl methacrylamides and contact lenses made thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734314A (en) * | 2004-08-11 | 2006-02-15 | 李冰 | Contact lens with micropore |
-
2006
- 2006-05-23 CN CN200610084857A patent/CN101078815B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1734314A (en) * | 2004-08-11 | 2006-02-15 | 李冰 | Contact lens with micropore |
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| Publication number | Publication date |
|---|---|
| CN101078815A (en) | 2007-11-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110523 |