WO2004097503A1 - Cosmetic contact lens - Google Patents

Cosmetic contact lens Download PDF

Info

Publication number
WO2004097503A1
WO2004097503A1 PCT/IT2003/000263 IT0300263W WO2004097503A1 WO 2004097503 A1 WO2004097503 A1 WO 2004097503A1 IT 0300263 W IT0300263 W IT 0300263W WO 2004097503 A1 WO2004097503 A1 WO 2004097503A1
Authority
WO
WIPO (PCT)
Prior art keywords
iris
contact lens
peripheral ring
user
lens
Prior art date
Application number
PCT/IT2003/000263
Other languages
French (fr)
Inventor
Alessandro Filippo
Fernando Garbellotto
Original Assignee
Safilens S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Safilens S.R.L. filed Critical Safilens S.R.L.
Priority to AU2003231355A priority Critical patent/AU2003231355A1/en
Priority to PCT/IT2003/000263 priority patent/WO2004097503A1/en
Publication of WO2004097503A1 publication Critical patent/WO2004097503A1/en

Links

Classifications

    • 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

Definitions

  • the present invention relates to a cosmetic contact lens according to the features set forth in the preamble of the main claim.
  • coloured contact lenses In order to effect the desired aesthetic modifications, coloured contact lenses are known that have various shades and configurations so that, once inserted, they confer on the user's eye a novel visual impact by concealing partially or completely the natural colouring of the user's iris.
  • cosmetic contact lenses are coloured at the location of an iris region thereof which is to be superposed on the user's iris when inserted, while the central region and optionally the peripheral region, which are superposed on the pupil and on the sclera portion adjacent to the iris, respectively, are substantially transparent.
  • That type of lens has also been the subject of numerous technical variations, some of which aim to make the visual impact of the eye when the lens is worn as "natural” as possible, and others of which, on the contrary, aim to make it more unconventional and deliberately unnatural.
  • a first disadvantage is the fact that the colouring at the location of the iris tends to interfere with an optimum peripheral vision of the user, particularly in conditions of reduced light. It is known that, under those conditions, the pupil tends to widen in order to permit a greater ingress of light radiation. However, in doing this, the outermost ring of the pupil interferes with the innermost portion of the iris region of the lens, which portion, being coloured with opaque pigments in order to conceal the iris beneath, prevents (or at least interferes with) the passage of light to the inside of the eye.
  • a second disadvantage is the fact that sometimes the iris (coloured) region of the lens does not completely cover the iris of the eye, thus greatly impairing the desired aesthetic effect. This occurs particularly in conditions of high luminosity, as a consequence of which the pupil tends to contract to reduce the ingress of light radiation, which involves the movement of the innermost portion of the iris to beyond the iris region of the lens.
  • the two disadvantages have their origin in conflicting requirements.
  • the dimensions of the iris region of the cosmetic contact lens are determined on the basis of a compromise between those two requirements, with the consequence that it is impossible to fulfil them definitively and completely.
  • Cosmetic contact lenses are also known where the aesthetic effect is conferred by a plurality of reflective particles which have various dimensions and which are dispersed in the lens at the location of the iris region. Since these reflective particles, which are generally referred to as “glitters” in the art, are substantially opaque to light, their behaviour is entirely comparable to that indicated above in connection with coloured lenses, interference with the peripheral vision being encountered in this case too under conditions of poor light. Description of the invention
  • a further object of the invention is to produce a cosmetic contact lens whose aesthetic effect and visual capacity are substantially independent of the light conditions.
  • FIG. 1 is a front view of a cosmetic contact lens produced in accordance with the present invention
  • FIG. 1 is a front view of the lens of Figure 1 in the condition of use
  • FIG. 3 is a contact lens produced in accordance with a variant of the present invention.
  • the contact lens 1 generally indicates a cosmetic contact lens produced in accordance with the present invention.
  • the contact lens 1 is of the soft type, even more preferably of the disposable type, and is produced using polymers based on HEMA or its derivatives and is worked in accordance with techniques known p_er se in the art.
  • the contact lens 1 comprises main surfaces 2a, 2b which are convex and concave, respectively, and which may advantageously be in a form such as to permit correction of any visual defects, such as myopia, astigmatism, etc.
  • a central region 3 Also identified on the lens 1 are a central region 3, an iris region 4, which is arranged annularly around the central region 3, and also a peripheral ring 5, which is in turn arranged annularly around the iris region 4.
  • the central region 3 and the iris region 4 are substantially transparent, this term also being intended to cover the case in which those regions are "tinted", that is to say, are very slightly coloured (generally blue or green).
  • the term “tinted” means a lens (or a portion thereof) which contains a quantity of pigments such as not substantially to impair the passage of light through the lens.
  • the lens 1 also comprises means that are opaque to light and that are capable of conferring an aesthetic effect on the eye of a user thereof and, according to a principal feature of the invention, those opaque means are concentrated at the location of the peripheral ring 5.
  • the opaque means of the lens 1 comprise an amount of pigment such as to render the peripheral ring 5 "coloured", this term being intended to indicate, in conformity with the terminology of the art, a lens (or a region thereof) in which the amount of pigment used is such as to prevent the passage of a substantial portion of the light through the lens (as opposed to the term “tinted").
  • the sclera portion 5a appears to have the colour of the peripheral ring 5, while the iris 4a appears to have substantially its own natural colour.
  • the radial dimension A of the peripheral ring 5 is from 0.5 to 3 mm, preferably from 1 to 2 mm, and is dimensioned so as slightly to cover also the outer edge of the user's iris in order to ensure continuity between the natural colouring of the iris and the colouring of the peripheral ring 5, even if the lens 1 moves slightly relative to the eye (possible, for example, in the case of winking).
  • the colouring of the peripheral ring 5 may be effected in accordance with techniques that are conventional p_er se in the art, using various colours and models, depending on the desired effect.
  • the above-mentioned colouring may be such as to provide a lively contrast with the natural colouring of the iris or, on the contrary, it may be of a shade similar to the natural shade of the iris. In this second case, the iris appears to be enlarged, thus achieving an interesting aesthetic effect.
  • the use of the contact lens 1 does not in any way affect the user's vision because the coloured region of the lens, placed at the periphery thereof, is relatively far away from the pupil, which can therefore expand and contract without any interference with the opaque portion of the lens.
  • Figure 3 shows a variant of the lens 1 in which the means that are opaque to light and that are concentrated at the location of the peripheral ring 5 comprise a plurality of reflective particles generally indicated 10.
  • the use of those reflective particles, or glitters, makes it possible to obtain an attractive sparkling effect around the iris.
  • the glitters used may vary in number and size in accordance with the overall effect desired.
  • the glitters in the peripheral ring 5 may or may not be associated with an opaque colouring.
  • the present invention thus solves the problem discussed above with reference to the mentioned prior art, at the same time offering numerous other advantages, including an aesthetic impact of the contact lens which is entirely novel and special, without any possibility of interfering with the correct peripheral vision of the user in any light condition whatever. In particular, an effect of enlarging the natural iris can be obtained.

Abstract

An iris region (4), which is to be superpose, in use, on the iris (4a) of the user, and also a peripheral ring (5), which is arranged annularly around the iris region (4) and which is to be superposed, in use, on a sclera portion (5a) of the user, are defined on a cosmetic contact lens (1). The lens comprises means that are opaque to light and that are capable of conferring an aesthetic effect on the eye of a user of the lens, which opaque means are concentrated at the location of the peripheral ring (5).

Description

Cosmetic contact lens
Description
Technical field
The present invention relates to a cosmetic contact lens according to the features set forth in the preamble of the main claim.
Technological background
Contact lenses of the above-mentioned type, which, as an alternative or in addition to an action correcting eyesight, are also intended to modify the overall aesthetic impact of the eyes of the user, are enjoying increasingly widespread popularity, particularly among young people.
In order to effect the desired aesthetic modifications, coloured contact lenses are known that have various shades and configurations so that, once inserted, they confer on the user's eye a novel visual impact by concealing partially or completely the natural colouring of the user's iris.
Typically, cosmetic contact lenses are coloured at the location of an iris region thereof which is to be superposed on the user's iris when inserted, while the central region and optionally the peripheral region, which are superposed on the pupil and on the sclera portion adjacent to the iris, respectively, are substantially transparent.
That type of lens has also been the subject of numerous technical variations, some of which aim to make the visual impact of the eye when the lens is worn as "natural" as possible, and others of which, on the contrary, aim to make it more unconventional and deliberately unnatural.
The contact lenses mentioned above with reference to the prior art, however, have some disadvantages.
A first disadvantage is the fact that the colouring at the location of the iris tends to interfere with an optimum peripheral vision of the user, particularly in conditions of reduced light. It is known that, under those conditions, the pupil tends to widen in order to permit a greater ingress of light radiation. However, in doing this, the outermost ring of the pupil interferes with the innermost portion of the iris region of the lens, which portion, being coloured with opaque pigments in order to conceal the iris beneath, prevents (or at least interferes with) the passage of light to the inside of the eye.
A second disadvantage is the fact that sometimes the iris (coloured) region of the lens does not completely cover the iris of the eye, thus greatly impairing the desired aesthetic effect. This occurs particularly in conditions of high luminosity, as a consequence of which the pupil tends to contract to reduce the ingress of light radiation, which involves the movement of the innermost portion of the iris to beyond the iris region of the lens.
As may be readily inferred from the above explanation, the two disadvantages have their origin in conflicting requirements. The dimensions of the iris region of the cosmetic contact lens are determined on the basis of a compromise between those two requirements, with the consequence that it is impossible to fulfil them definitively and completely.
Cosmetic contact lenses are also known where the aesthetic effect is conferred by a plurality of reflective particles which have various dimensions and which are dispersed in the lens at the location of the iris region. Since these reflective particles, which are generally referred to as "glitters" in the art, are substantially opaque to light, their behaviour is entirely comparable to that indicated above in connection with coloured lenses, interference with the peripheral vision being encountered in this case too under conditions of poor light. Description of the invention
The problem upon which the present invention is based is that of producing a cosmetic contact lens which is structurally and functionally designed to overcome the limitations explained above with reference to the mentioned prior art.
In the context of that problem, it is an object of the invention to produce a cosmetic contact lens which produces a novel aesthetic impact.
A further object of the invention is to produce a cosmetic contact lens whose aesthetic effect and visual capacity are substantially independent of the light conditions.
That problem is solved and those objects are achieved by the present invention by means of a cosmetic contact lens produced in accordance with the claims which follow.
Brief description of the drawings
The features and advantages of the invention will emerge more clearly from the detailed description of a preferred embodiment thereof which is illustrated by way of non-limiting example with reference to the appended drawings in which:
- Figure 1 is a front view of a cosmetic contact lens produced in accordance with the present invention,
- Figure 2 is a front view of the lens of Figure 1 in the condition of use,
- Figure 3 is a contact lens produced in accordance with a variant of the present invention.
Preferred embodiment of the invention
In the drawings, 1 generally indicates a cosmetic contact lens produced in accordance with the present invention. Preferably, the contact lens 1 is of the soft type, even more preferably of the disposable type, and is produced using polymers based on HEMA or its derivatives and is worked in accordance with techniques known p_er se in the art.
The contact lens 1 comprises main surfaces 2a, 2b which are convex and concave, respectively, and which may advantageously be in a form such as to permit correction of any visual defects, such as myopia, astigmatism, etc.
Also identified on the lens 1 are a central region 3, an iris region 4, which is arranged annularly around the central region 3, and also a peripheral ring 5, which is in turn arranged annularly around the iris region 4.
Referring to Figure 2, in which the lens 1 is represented in conditions of use, those regions are to be superposed on the pupil, the iris and the sclera portion adjacent to the iris, respectively, which are marked 3a, 4a and 5a, respectively, in the above-mentioned Figure 2.
The central region 3 and the iris region 4 are substantially transparent, this term also being intended to cover the case in which those regions are "tinted", that is to say, are very slightly coloured (generally blue or green). In the present description, as in the technical field of reference, the term "tinted" means a lens (or a portion thereof) which contains a quantity of pigments such as not substantially to impair the passage of light through the lens.
The lens 1 also comprises means that are opaque to light and that are capable of conferring an aesthetic effect on the eye of a user thereof and, according to a principal feature of the invention, those opaque means are concentrated at the location of the peripheral ring 5.
With reference to Figures 1 and 2, the opaque means of the lens 1 comprise an amount of pigment such as to render the peripheral ring 5 "coloured", this term being intended to indicate, in conformity with the terminology of the art, a lens (or a region thereof) in which the amount of pigment used is such as to prevent the passage of a substantial portion of the light through the lens (as opposed to the term "tinted").
Thus, when the lens 1 is being worn (Figure 2), the sclera portion 5a appears to have the colour of the peripheral ring 5, while the iris 4a appears to have substantially its own natural colour. Overall, the effect achieved will thus be that of an iris having a natural appearance surrounded by a coloured ring. The radial dimension A of the peripheral ring 5 is from 0.5 to 3 mm, preferably from 1 to 2 mm, and is dimensioned so as slightly to cover also the outer edge of the user's iris in order to ensure continuity between the natural colouring of the iris and the colouring of the peripheral ring 5, even if the lens 1 moves slightly relative to the eye (possible, for example, in the case of winking). The colouring of the peripheral ring 5 may be effected in accordance with techniques that are conventional p_er se in the art, using various colours and models, depending on the desired effect. For example, the above-mentioned colouring may be such as to provide a lively contrast with the natural colouring of the iris or, on the contrary, it may be of a shade similar to the natural shade of the iris. In this second case, the iris appears to be enlarged, thus achieving an interesting aesthetic effect.
It will be appreciated that the use of the contact lens 1 does not in any way affect the user's vision because the coloured region of the lens, placed at the periphery thereof, is relatively far away from the pupil, which can therefore expand and contract without any interference with the opaque portion of the lens.
Figure 3 shows a variant of the lens 1 in which the means that are opaque to light and that are concentrated at the location of the peripheral ring 5 comprise a plurality of reflective particles generally indicated 10. The use of those reflective particles, or glitters, makes it possible to obtain an attractive sparkling effect around the iris. The glitters used may vary in number and size in accordance with the overall effect desired.
Naturally, the glitters in the peripheral ring 5 may or may not be associated with an opaque colouring.
The present invention thus solves the problem discussed above with reference to the mentioned prior art, at the same time offering numerous other advantages, including an aesthetic impact of the contact lens which is entirely novel and special, without any possibility of interfering with the correct peripheral vision of the user in any light condition whatever. In particular, an effect of enlarging the natural iris can be obtained.

Claims

1. A cosmetic contact lens (1) comprising means that are opaque to light and that are capable of conferring an aesthetic effect on the eye of a user of the lens, there being defined on the lens an iris region (4), which is to be superposed, in use, on the iris (4a) of the user, and also a peripheral ring (5), which is arranged annularly around the iris region (4) and which is to be superposed, in use, on a sclera portion (5a) of the user, characterised in that the means opaque to light are concentrated at the location of the peripheral ring (5).
2. A contact lens according to claim 1, wherein the peripheral ring (5) has a radial dimension (A) of from 0.5 to 3 mm.
3. A contact lens according to claim 2, wherein the peripheral ring has a radial dimension of from 1 to 2 mm.
4. A lens according to one or more of the preceding claims, wherein the iris region (4) is substantially transparent to light and the opaque means comprise an amount of pigment such as to render the peripheral ring (5) coloured, at least partially.
5. A contact lens according to claim 4, wherein the peripheral ring is coloured with a colour contrasting with the natural colour of the user's iris.
6. A contact lens according to claim 4, wherein the peripheral ring is coloured with a colour that is substantially similar to the natural colour of the user's iris.
7. A contact lens according to one or more of the preceding claims, wherein the means opaque to light comprise a plurality of particles (10) that reflect light.
PCT/IT2003/000263 2003-04-29 2003-04-29 Cosmetic contact lens WO2004097503A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003231355A AU2003231355A1 (en) 2003-04-29 2003-04-29 Cosmetic contact lens
PCT/IT2003/000263 WO2004097503A1 (en) 2003-04-29 2003-04-29 Cosmetic contact lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2003/000263 WO2004097503A1 (en) 2003-04-29 2003-04-29 Cosmetic contact lens

Publications (1)

Publication Number Publication Date
WO2004097503A1 true WO2004097503A1 (en) 2004-11-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
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WO (1) WO2004097503A1 (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007013857A1 (en) * 2005-07-28 2007-02-01 Oculus Limited Contact lens
WO2007057484A2 (en) * 2005-11-10 2007-05-24 Fundació Privada Catalana D'oftalmologia Grimaldi Eye colour changing system
WO2012144978A1 (en) * 2011-04-18 2012-10-26 Johnson & Johnson Vision Care, Inc. Contact lens with brightly colored sclera
US8317322B2 (en) 2010-02-04 2012-11-27 Johnson & Johnson Vision Care, Inc. Contact lens with brightly colored sclera
EP2590007A1 (en) * 2011-11-02 2013-05-08 Johnson & Johnson Vision Care, Inc. Oriented contact lens with brightly colored scleral zone
US8770747B2 (en) 2010-12-14 2014-07-08 Novartis Ag Colored contact lens
US9039173B2 (en) 2010-07-29 2015-05-26 Novartis Ag Colored contact lenses and method of making the same
USD824444S1 (en) 2017-04-13 2018-07-31 Novartis Ag Contact lens
USD824443S1 (en) 2017-04-13 2018-07-31 Novartis Ag Contact lens
USD824981S1 (en) 2017-04-13 2018-08-07 Novartis Ag Contact lens
USD829254S1 (en) 2017-04-13 2018-09-25 Novartis Ag Contact Lens
USD829255S1 (en) 2017-04-13 2018-09-25 Novartis Ag Contact lens
USD829253S1 (en) 2017-04-13 2018-09-25 Novartis Ag Contact lens
USD829795S1 (en) 2017-04-13 2018-10-02 Novartis Ag Contact lens
US10156736B2 (en) 2017-04-13 2018-12-18 Novartis Ag Colored contact lenses and method of making the same
USD869534S1 (en) 2017-04-13 2019-12-10 Novartis Ag Contact lens

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712718A (en) * 1970-10-23 1973-01-23 J Legrand Corneal contact lens
EP0127450A2 (en) * 1983-05-25 1984-12-05 Charles William Neefe Cosmetic contact lens
EP0982617A1 (en) * 1998-08-28 2000-03-01 INNOVA, Inc Colored contact lens with a natural appearance
US20020191152A1 (en) * 2001-06-13 2002-12-19 Hsu Chung Wei Contact lens capable of letting eyeball seem larger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712718A (en) * 1970-10-23 1973-01-23 J Legrand Corneal contact lens
EP0127450A2 (en) * 1983-05-25 1984-12-05 Charles William Neefe Cosmetic contact lens
EP0982617A1 (en) * 1998-08-28 2000-03-01 INNOVA, Inc Colored contact lens with a natural appearance
US20020191152A1 (en) * 2001-06-13 2002-12-19 Hsu Chung Wei Contact lens capable of letting eyeball seem larger

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101263413B (en) * 2005-07-28 2012-12-26 新加坡晶亮私人有限公司 Contact lens
GB2440558B (en) * 2005-07-28 2009-02-18 Oculus Ltd Contact Lens
WO2007013857A1 (en) * 2005-07-28 2007-02-01 Oculus Limited Contact lens
SG129315A1 (en) * 2005-07-28 2007-02-26 Oculus Ltd Contact lens that makes the eye appear larger
GB2440558A (en) * 2005-07-28 2008-02-06 Oculus Ltd Contact lens comprising printed iris portion larger than iris of wearer
WO2007057484A2 (en) * 2005-11-10 2007-05-24 Fundació Privada Catalana D'oftalmologia Grimaldi Eye colour changing system
WO2007057484A3 (en) * 2005-11-10 2007-07-05 Fundacio Privada Catalana D Of Eye colour changing system
US8317322B2 (en) 2010-02-04 2012-11-27 Johnson & Johnson Vision Care, Inc. Contact lens with brightly colored sclera
US9575333B2 (en) 2010-07-29 2017-02-21 Novartis Ag Colored contact lenses and method of making the same
US9039173B2 (en) 2010-07-29 2015-05-26 Novartis Ag Colored contact lenses and method of making the same
US9310625B2 (en) 2010-07-29 2016-04-12 Novartis Ag Colored contact lenses and method of making the same
US8770747B2 (en) 2010-12-14 2014-07-08 Novartis Ag Colored contact lens
US8915591B2 (en) 2010-12-14 2014-12-23 Novartis Ag Colored contact lens
WO2012144978A1 (en) * 2011-04-18 2012-10-26 Johnson & Johnson Vision Care, Inc. Contact lens with brightly colored sclera
CN103547959A (en) * 2011-04-18 2014-01-29 庄臣及庄臣视力保护公司 Contact lens with brightly colored sclera
KR102087576B1 (en) * 2011-04-18 2020-03-12 존슨 앤드 존슨 비젼 케어, 인코포레이티드 Contact lens with brightly colored sclera
AU2011366230B2 (en) * 2011-04-18 2016-02-04 Johnson & Johnson Vision Care, Inc. Contact lens with brightly colored sclera
KR20180004326A (en) * 2011-04-18 2018-01-10 존슨 앤드 존슨 비젼 케어, 인코포레이티드 Contact lens with brightly colored sclera
US9104042B2 (en) 2011-11-02 2015-08-11 Johnson & Johnson Vision Care, Inc. Oriented contact lens with brightly colored sclera
EP2590007A1 (en) * 2011-11-02 2013-05-08 Johnson & Johnson Vision Care, Inc. Oriented contact lens with brightly colored scleral zone
USD824444S1 (en) 2017-04-13 2018-07-31 Novartis Ag Contact lens
USD824443S1 (en) 2017-04-13 2018-07-31 Novartis Ag Contact lens
USD824981S1 (en) 2017-04-13 2018-08-07 Novartis Ag Contact lens
USD829254S1 (en) 2017-04-13 2018-09-25 Novartis Ag Contact Lens
USD829255S1 (en) 2017-04-13 2018-09-25 Novartis Ag Contact lens
USD829253S1 (en) 2017-04-13 2018-09-25 Novartis Ag Contact lens
USD829795S1 (en) 2017-04-13 2018-10-02 Novartis Ag Contact lens
US10156736B2 (en) 2017-04-13 2018-12-18 Novartis Ag Colored contact lenses and method of making the same
USD869534S1 (en) 2017-04-13 2019-12-10 Novartis Ag Contact lens

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