KR20020064982A - Contact lens comprising a turquoise colorant - Google Patents

Abstract

The invention comprises a pupil 20 and an iris 22 surrounding the pupil, which is at least partially covered with a cyan colorant having a blue component, a green component, a titanium dioxide component and a purple component. It relates to a contact lens (10). This colored contact lens may further comprise a light brown colorant and / or a dark colorant. This contact lens makes the lens wearer's iris look glamorous turquoise.

Description

CONTACT LENS COMPRISING A TURQUOISE COLORANT}

Related application

The present invention claims rights to the date of filing of U.S. Provisional Application No. 60 / 174,288, filed Jan. 3, 2000, incorporated herein by reference, under U.S. Patent Act (35 USC) Section 119 (e). .

For many years, many attempts have been made to change the color of the eyes or make them look more beautiful using colored contact lenses, which have been of varying degrees of success. Attempts to make opaque lenses that make the iris look natural appear in US Pat. No. 3,536,386 to Spivak; US Patent No. 3,679,504 to Wichterle; US Patent No. 3,712,718 to LeGrand; Neefe US Pat. No. 4,460,523; US Patent No. 4,719,657 to Bawa; U.S. Patent No. 4,744,647 to Meshel et al .; Jenkins, US 4,634,449; European Patent Publication No. 0 309 154 to Allergan; And in British Patent Application No. 2 202 540 A to Igel.

As a preferred embodiment the colored contact lenses described in Knapp US Pat. No. 4,582,402, which discloses contact lenses with colored opaque dots, have achieved commercial success. The Knap's lens uses a simple dot pattern printed in monochrome, so it's simple to produce and simple, making the iris look natural. In a knap lens, the discrete pattern of dots does not completely cover the iris, but usually has enough point density to make it appear continuous color due to the shielding effect seen by an observer of vision. Knap also notes that the majority of people's irises have more than one color, if closely observed, so that the printing process can be repeated more than once using different patterns of different colors.

Even if the printed pattern is not completely uniform, it can alter or make the microstructure of the iris more beautiful. In the case of these monochromatic knap lenses, which have now been commercially successful, the dots are arranged in an irregular pattern to improve the iris structure. However, commercially available knap lenses or Knap's patents do not disclose or imply that a combination of color and design can be used to create contact lenses that can change the wearer's eye color into a fascinating turquoise.

Another attempt to make a lens that makes the iris look more natural is disclosed in Rawlings, U.S. Patent No. 5,120,121, which discloses a bundle of interconnected lines that radially spread from the outer periphery of the pupil to the iris outer periphery. line) Start a pattern. EP 0 472 496 A2 also discloses a contact lens having a pattern composed of the same lines as the lines in the iris.

Although many attempts have been made to manufacture colored contact lenses that change the color of the iris or make the appearance more beautiful, the contact lens wearer's eye color can be changed or beautified to make the eye contact look natural and seductive. Contact lenses have not been developed yet.

Summary of the Invention

In one embodiment of the present invention, a colored contact lens is provided. Such contact lenses comprise a pupil and an iris surrounding the pupil, which is at least partially covered with a cyan colorant having a blue component, a green component, a titanium dioxide component and a purple component.

In another embodiment of the present invention there is provided a contact lens capable of changing the color of the contact lens wearer iris to cyan. The contact lens comprises a non-opaque pupil, an iris surrounding the pupil, and a colored opaque discontinuous pattern covering the iris, the pattern being non-opaque, with a significant portion of the pattern also being Covering at least about 25% of the area of the iris, the elements of the pattern (hereinafter referred to as "elements or elements of the pattern") are usually invisible to observers of vision, and the pattern is a cyan colorant, It consists of a light brown colorant and a dark colorant.

In another embodiment of the invention, the contact lens comprises a non-opaque pupil, an iris surrounding the pupil and at least two colored opaque discontinuous patterns covering the iris, the pattern of which is substantially non-transparent. -Become opaque, the pattern covering at least about 25% of the iris area, the elements of the first pattern comprising a cyan colorant and the elements of the second pattern including a light brown colorant.

As used herein, the term "non-opaque" refers to a lens portion that is not colored or colored with a translucent pigment.

As used herein, "normal observer of eyes" refers to a person having normal 20-20 vision, standing about 5 feet away from a person wearing the lens of the present invention.

1 shows a contact lens having a pupil and an iris.

2 shows a pattern element in the outermost starburst form used for a contact lens.

3 shows a pattern element in the form of an external starburst for use in a contact lens.

4 shows pattern elements in the form of internal starbursts used in contact lenses.

5 shows a reflectance versus wavelength graph of a cyan colorant used in contact lenses.

6 shows a reflectance versus wavelength graph of a light brown colorant used in contact lenses.

7 shows a reflectance versus wavelength graph of a black colorant used in contact lenses.

Detailed Description of the Drawings and Preferred Embodiments of the Invention

1 shows a contact lens 10. This lens has a non-opaque pupil 20 at its center and an annular iris 22 surrounding the pupil. In the case of a hydrophilic lens, the outer peripheral portion surrounds the iris portion 22. As shown in FIG. 1, a colored opaque discontinuous pattern is placed on the iris 22. In such a pattern, much of the iris that lies within the pattern gap remains non-opaque. The non-opaque portion of the iris portion 22 is shown in white in FIG. 1.

The elements of the pattern are preferably points, particularly preferably points, and as shown in FIG. 1, several points are mixed. Certain portions of iris 22 are covered with dots less dense than others.

The opaque pattern may consist of points of regular or irregular or uniform or non-uniform shape, for example circular, square, hexagonal, rectangular or other shaped points. In addition, the elements of this pattern may have a form other than dots, which are usually invisible to observers of visual acuity, covering 10 to 30%, preferably about 20% or 25%, of the iris and placed within the pattern gap. Leave much of the wealth non-opaque. The patterns that make up the iris are islands of color, worms, corkscrews, starbursts, spokes, and long spikes. ), Thin stripes, radial stripes, zig-zags, and streaks. In some cases, a solid background is used to complement the multi-pattern design. These patterns are blended with each other to provide a colored contact lens that makes the iris of the lens wearer look more beautiful.

One embodiment of the present invention is a multicolored pattern that makes the wearer's iris look much more natural than monochromatic or dichroic lenses. To achieve this embodiment, three (or more) color patterns are printed on three or more portions. The first part has a first tint, and the part of which the points or other elements of this first part are densely populated (hereinafter referred to as the "element-dense area") is generally inside or outside the iris, ie the annular iris. It is located near the outer circumference or the outer circumference. The first portion may have an outermost starburst shape. A preferred first outer partial pattern or outermost starburst type is shown in FIG. 2. The outermost starburst color is most commonly black, or other dark colors such as grey, dark brown or dark blue.

The second part (outer starburst type) has a second color tone different from the first color tone, and the element-dense area of the second part is generally located inside the outermost starburst type, but not always It is surrounded by the outermost starburst type. A preferred second part or external starburst type is shown in FIG. 3. As the outer starburst type, various colors such as blue, gray, brown, light blue, cyan, purple, blue violet, turquoise, yellow or green are used. Most preferably the outer starburst type is cyan. When the outer starburst type is not cyan, the cyan colorant can be applied in a different pattern.

The third portion (inner starburst type) has a third color tone that is different from the second color tone and that is the same as or different from the first color tone. The element-tight region of this third part is usually, but not always, located within the other two parts. In general, the element-dense area of this third part is surrounded by the element-dense area of the two parts. A preferred third internal partial pattern, preferably internal starburst type, is shown in FIG. 4. Light brown is preferred as the internal starburst type, but other colors such as yellow, yellow green, brown, tan, golden and orange are also used. FIG. 1 shows a preferred embodiment of the present invention in which FIG. 2, FIG. 3, and FIG. 4 are combined.

In a preferred embodiment, the outermost starburst type and the outer starburst type are distinguished by a first non-uniform boundary line, but the outermost starburst type and the outer starburst type elements are actually or apparently superimposed on each other to achieve the desired effect. May be mixed, blended, or blended. The outer starburst type and the inner starburst type are distinguished by a second non-uniform boundary, but the elements of the outer starburst type and the inner starburst type may actually or apparently overlap, blend or blend with each other. When the patterns of Figs. 2, 3, and 4 are combined to form a tricolor lens, the non-uniform edges of the pattern shown in Fig. 2 merge and overlap with the pattern shown in Fig. 3 to form a gap between the outermost starburst type and the outer starburst type. Will form a first non-uniform boundary line. Also, the non-uniform edges of the pattern shown in FIG. 4 will merge and overlap with the pattern shown in FIG. 3 to form a second non-uniform boundary between the outer starburst type and the inner starburst type.

In some patterns, the outer starburst type may extend more towards the lens periphery than the outermost starburst type. In another pattern, the outer starburst type may extend more towards the pupil than the inner starburst type.

Another embodiment of the invention relates to the shortest and longest distances from the outer periphery of the iris to the non-uniform borderline. For example, in one embodiment, the shortest distance from the circumference of the iris to the first non-uniform border is about 5 to about 60% of the radius of the iris and the longest distance from the circumference of the iris to the first non-uniform border is about 25 of the radius of the iris. To about 95%, the shortest distance from the outer periphery of the iris to the second non-uniform border is about 15 to about 75% of the radius of the iris, and the longest distance from the outer periphery of the iris to the second non-uniform border is about 50 to about about the radius of the iris. 95%.

In another embodiment, the shortest distance from the circumference of the iris to the first non-uniform border is about 15 to about 50% of the radius of the iris and the longest distance from the circumference of the iris to the first non-uniform border is about 45 to about about the radius of the iris. 95%, the shortest distance from the outer periphery of the iris to the second non-uniform border is about 15 to about 65% of the radius of the iris, and the longest distance from the outer periphery of the iris to the second non-uniform border is about 60 to about 95% of the radius of the iris. to be.

In another embodiment, the shortest distance from the circumference of the iris to the first non-uniform border is about 15 to about 50% of the radius of the iris and the longest distance from the circumference of the iris to the first non-uniform border is about 45 to about about the radius of the iris. 95%, the shortest distance from the outer periphery of the iris to the second non-uniform border is about 15 to about 65% of the radius of the iris, and the longest distance from the outer periphery of the iris to the second non-uniform border is about 60 to about 95% of the radius of the iris. to be.

In another embodiment, some of the elements constituting the outer starburst shaped pattern element may extend to the periphery of the iris of the contact lens such that they are located outside of all the elements constituting the outermost starburst shaped pattern element / Alternatively, some elements constituting the outer starburst-shaped pattern element may extend closer to the pupil such that they are located within than all the elements constituting the inner starburst-shaped pattern element.

In another embodiment, the inner starburst shaped pattern element is interdigitated with one or both of the outermost starburst shaped pattern element and the outer starburst shaped pattern element. In addition, the outermost starburst-type pattern element may form a structure engaged with the outer starburst-type pattern element. In such an interlocking structure, one pattern and the other pattern intersect with each other, as if the fingers of one hand were interdigitated with the fingers of the other hand.

5 is a graph of reflectance versus wavelength of a preferred cyan colorant used in contact lenses. In the graph, when measured spectrophotometrically, a contact lens coated with a cyan colorant exhibits abnormal reflectance at wavelengths of about 430 to about 600 nm, in which the reflectance rises from about 480 nm to about 30 reflecting units. . At 600-750 nm, the reflectivity becomes about 7 reflecting units.

The cyan colorant exhibiting such reflectivity is preferably an ink paste containing the following components.

Ink paste color Turquoise ingredient weight% Target weight Target weight Ethyl lactate 30.00 180.00 900.00 Binder solution 58.16 348.96 1744.80 PCN blue 0.63 3.78 18.90 PCN Green 2.25 13.50 67.50 TiO ₂ 8.88 53.28 266.40 Carbazole violet 0.08 0.48 2.40 Gross weight (g) 600 3000

Contact lenses coated with only the cyan colorant are measured by the CIE Color Notation System. This contact lens has L ^* of about 43.3, a ^* of about -24.9, and ab ^* of about -9.8.

CIE colorimetry, a method of measuring color, is a colorimetric method based on stimulus-response characteristics, adopted by the International Illumination Commission (CIE) in 1931. The recommendation currently in use is the Colorimetry Official Recommendation of the International Commission on Illumination, available from the National Bureau of Standards, 20234, Washington, DC. 1.3.1) in 1971.

The CIE Standard Observer is the observer data adopted by the CIE that shows that the average human's eye adapted to light responds to the same energy spectrum. Unless stated otherwise, the CIE Standard Observer refers to data adopted in 1931 measured using a second degree field of view. The data adopted in 1964 (often referred to as the 1964 standard observer) are measured using an annular 10 degree field of view except for the 1931 standard observer's 2 degree field of view.

The coloring agent of this invention can be measured by spectrophotometry. According to the CIE colorimetric method, in particular, the CIE 1976 Color Difference Equation, the color difference is obtained as follows.

And wherein, X, Y and Z are tripartite peak of the sample, X _0, Y ₀ and Z ₀ represents the color of a white object stimulation member (a light source), ΔL ^* is the standard specimen in the L ^* value of the sample L ^* minus the value is, Δa ^* is in the a ^* value of the sample minus the a ^* value of the standard sample, Δb ^* is a value in the b ^* value of a specimen obtained by subtracting the b ^* value of the standard specimen.

Two panels containing the colorants of the present invention were measured spectrophotometrically according to the CIE colorimetric method using olive-gold # 1133-67 standard specimens. This olive-golden standard had L ^* of 52.160, a ^* of -3.384 and b ^* of 32.585. For panel 1, L ^* was 52.142 and a ^* and b ^* were −3.365 and 32.564, respectively. ΔL ^* was −0.018, Δa ^* was 0.019, Δb ^* was −0.021, and ΔE was 0.034. For panel 2, L ^* was 52.018 and a ^* and b ^* were −3.265 and 32.592, respectively. ΔL ^* was −0.142, Δa ^* was 0.118, Δb ^* was 0.006, and ΔE was 0.185.

In a preferred embodiment, the cyan colorant is printed onto the contact lens as a pattern element in the form of an outer starburst. Another colorant may be printed on the contact lens as a pattern element in the form of an internal starburst. Preferably the internal starburst type is light brown. More preferably the light brown colorant is an ink paste having the following components.

Ink paste color Light brown ingredient weight% Target weight Target weight Ethyl lactate 30.00 180.00 900.00 Binder solution 63.49 380.94 1904.70 PCN blue 0.06 0.36 1.80 TiO ₂ 0.61 3.65 18.3 IO red 1.54 9.25 46.20 IO yellow 4.30 25.80 129.00 Gross weight (g) 651 3000

6 shows a reflectance versus wavelength graph of contact lenses coated with only a light brown colorant. In this graph, when measured spectrophotometrically, the contact lens coated with the light brown colorant gradually increases the reflectance from about 5 to about 10 reflecting units in the wavelength range of 360 to 550 nm. In the wavelength range of about 550 to about 590 nm, the reflectivity increases rapidly to about 21 reflecting units. In the wavelength range from 590 to 750 nm the reflectance is generally greater than 21 and less than about 25 reflecting units.

Contact lenses coated with only the light brown colorant were measured by the CIE colorimetric method. This contact lens has L ^* of about 42.3, a ^* of about 15.8, and ab ^* of about 18.9.

Preferred contact lenses may comprise another colorant as a pattern element, preferably in the form of the outermost starburst. This colorant is preferably dark in color. More preferably, this colorant is a black ink paste comprising IO black as shown in the following table.

Ink paste color black ingredient weight% Target weight Target weight Ethyl lactate 23.98 156.11 719.40 Binder solution 64.04 416.90 1921.20 TiO ₂ 11.98 77.99 359.4 Gross weight (g) 651 3000

7 shows a reflectance versus wavelength graph of a contact lens coated with only a black colorant. In this graph, when measured by spectrophotometry, a contact lens coated with a black colorant shows a nearly linear form with a reflectance of about 5 in all wavelength ranges.

Contact lenses coated with only the black colorant were measured by the CIE colorimetric method. This contact lens has L ^* of about 25.5, a ^* of about 0.54, and ab ^* of about -0.15.

The method of making the opaque portion of the contact lens iris is preferably a printing known from U.S. Pat.Nos. 4,582,402 to Knap, which is incorporated herein by reference, and U.S. Pat. The method is to print the lens three times. Generally, the ink of desired color is applied to a plate or clayche in which a desired pattern is concavely engraved. When excess ink is removed by scraping the surface of the platen with a doctor blade, the ink remains only in the recesses.

The silicone rubber pad is pressed against the printing plate to lift ink from the recess, and then pressed against the surface of the lens to transfer the pattern to the lens. The printed pattern is then cured to prevent the pattern from being erased from the lens. It is possible to print both the front and back of the lens, but for now it is desirable to print the front of the lens.

Preferred lens and ink components for use in practicing the present invention are described in US Pat. No. 4,668,240 to Loshaek, which is known and incorporated herein by reference. Specific components and target weights will be described in detail below. Very briefly, a lens composed of a polymer having —COOH, —OH or —NH ₂ groups is printed with an ink containing a binding polymer having the same functional group, an opaque pigment and a diisocyanate compound. First, a solution containing the binding polymer and the solvent is prepared, and the solution is mixed with a dye-containing paste to make an ink. Preferred binder polymer solutions have a viscosity of about 35,000 CPS for blue, gray, brown and black and 50,000 CPS for green. This opaque ink is printed on the lens surface and cured.

Ink pastes and pigments usable in the present invention can be made in a number of different ways using the components and contents (% by weight) described in the table below. For example, to make a pale brown ink paste, use 64.59 wt% binder solution, 30.00 wt% ethyl lactate, 0.61 wt% titanium dioxide, 0.06 wt% PCN blue, 4.30 wt% IO yellow, and 1.54 wt% IO red. do. Such pigments are used in preferred embodiments, and other pigments or contents may be used. The table below illustrates only a representative of the inks and pigment contents available, and not all of them. Those skilled in the art will be able to develop other ink and pigment contents that can make the iris of a contact lens wearer look beautiful.

Of course, other methods may be used to form the colored opaque elements of the lens. For example, a specific portion of the iris portion of the wet hydrophilic lens is impregnated with a solution of a first substance such as barium chloride. The lens is then immersed in a solution of a second material, such as sulfuric acid, which reacts with the first material, such as barium sulfate, to form an opaque water-insoluble precipitate. In this way, opaque precipitation is formed in a predetermined pattern in the iris portion of the lens.

Subsequently, all or at least part of the iris is colored in a pattern with an opaque colorant. When the entire iris portion is colored with a translucent pale pigment, it is colored translucent within the pattern gap, but is still non-opaque, in accordance with preferred embodiments of the present invention. Optionally, the lens pupil may be colored with a non-opaque pale pigment because the lens is worn in the dark pupil of the wearer's eye, so this pale color is not noticeable. Another method of opacity includes the use of lasers (US Pat. No. 4,744,647) or the use of unmilled particles (US Pat. No. 4,460,523).

The colored contact lens manufacturing method of the present invention is as follows. At least a transparent contact lens including a pupil and an iris surrounding the pupil is manufactured. When the lens is made of a hydrophilic material, the lens will further have an outer periphery surrounding the iris. When using the hydrophilic material to perform the steps described below, this hydrophilic material is used without being hydrated. Preferred hydrophilic materials are described in US Pat. No. 4,405,773 to Roshaek, which is incorporated herein by reference.

The colored pattern can be deposited on the lens iris in any manner. The preferred method currently used is offset pad printing, which will be described in detail below.

A printing plate (not shown) with a flat surface and engraved with a desired annular dot pattern is produced. To make the pattern shown in FIGS. 2, 3 and 4, each recess should be about 0.1 mm in diameter and about 0.013 mm in depth. The recess is arranged to cover the annular portion corresponding to the lens iris.

Printed plates can be made by known methods of manufacturing analog or digital integrated circuits. First, make a pattern about 20 times larger than the desired pattern. This pattern is then reduced to a pattern of actual size with portions to be colored darker than other portions, using known photography. The flat surface of the printing plate is covered with a photoresist material that turns water-insoluble upon exposure to light. This photoresist material is covered with a pattern and exposed to light. The photoresist pattern portion is washed off with water and the resulting printed plate is etched to the desired depth. The residual photoresist material is then mechanically removed.

Colorants including pigments and binders or carriers for pigments are deposited on the flat surface of the printing plate and scraped over the pattern with doctor blades. This removes excess ink from the flat surface of the printing plate and the ink remains only in the recesses. Colorants can be more or less opaque, depending on the degree of color change desired. Opacity can be altered by adjusting the ratio of pigment to binder in the colorant. The desired effect can be achieved by using a very opaque colorant or by using a less opaque colorant to cover more of the iris surface portion.

The pad made of silicone rubber is immersed in silicone oil for easy removal later, and pressed against the pattern to lift the ink from the recess. The ink on the pad is slightly dried to increase the adhesion, and then pressed against the front surface of the contact lens to deposit the ink on the iris in a desired pattern. The pad should be flexible enough to bend along the convex curvature of the front of the lens. For a more natural effect, it is better to repeat the printing step more than once with different patterns of different colors, because the majority of people's irises have been found to have more than one color when observed closely. Even if the printed pattern is not completely uniform, the microstructure of the iris is improved.

The deposited pattern is then removed-prevented to prevent the pattern from being erased from the lens when the lens is worn on the eye and exposed to tears. This anti-removal treatment method depends on the lens material and the pattern. Only air-drying or heating the lens may be sufficient. In the case of hydrophilic lenses, an opaque pattern application method, as described in U.S. Patent No. 3,679,504 to Wiiche, which is incorporated herein by reference, may be used.

Preferred methods of making colored contact lenses generally include applying three colorant portions on the transparent contact lens surface and treating the colorant to prevent it from being erased by tears. The contact lens printed with the pattern has a non-opaque pupil and an iris surrounding the pupil, to which three colorant portions are applied. The first colorant portion or outermost starburst type has a first color tone, the second colorant portion or outer starburst type has a second color tone different from the first color tone, and the third colorant portion or inner starburst type is made of It has a third color tone different from the second color tone and the same or different from the first color tone.

The outermost starburst element-dense region is generally located inside and outside the iris and generally outside the outer starburst element-dense region, while the outer starburst element-dense region is generally internal starburst type. Located outside the element-tight area of the. The outermost starburst type and the outer starburst type may overlap, but they are distinguished from each other by a first non-uniform boundary line. The outer starburst type and the inner starburst type may overlap, but they are distinguished from each other by a second non-uniform boundary. Thus, a lens is provided which can change the apparent color of the iris of the lens wearer and make the iris appearance look very natural turquoise.

The step of depositing the discontinuous pattern on the lens surface includes filling the recess of the first printing plate with the first portion or the outermost starburst pattern engraved with the first colorant, preferably the black colorant. The next step is to press the first flexible pad against the first printing plate and then press the first flexible pad against the lens surface (front or back) to print the first portion.

The next step comprises filling the recess of the second printing plate in which the second portion or the outer starburst-shaped pattern is engraved with a colorant of a second pigment different from the first color tone, preferably a cyan colorant. The next step is to press the second flexible pad against the second printing plate and then press the second flexible pad against the lens surface (front or back) to print the second part.

The last step is a colorant of a third color tone, preferably light brown colorant, different from the second color tone and the same or different from the first color tone, in the recess of the third printing plate in which the third portion or the internal starburst pattern is concavely engraved. Includes filling. The next step is to press the third flexible pad against the third printing plate and press the third flexible pad against the lens surface (front or back) to print the third part. The lens thus obtained makes the lens wearer's iris look fascinating turquoise.

Although the steps of printing the pattern portions on the lens are listed above in the printing order, the printing order is not important in the present invention, and the present invention covers any printing order. In addition, the process described above also includes the longest and shortest distances required to define the non-uniform boundaries as already listed above.

Another embodiment of printing different layers on the contact lens iris includes ink-jet printing instead of pad-printing each layer. In the ink-jet printing method, a pad or a printing plate is not necessary, and since the resolution is higher than that of the pad printing, each colored layer can be printed more precisely, thereby providing a more natural final pattern in the contact lens iris portion.

Ink-jet printing reduces the number of devices in contact with contact lenses or other devices. For example, the silicon pad is first in contact with a printing plate or clay sheet and then with a contact lens. If a part wears due to contact between parts, the part will have to be replaced. In the ink-jet process, the micro-nozzle is not in physical contact with the contact lens or with any device. Therefore, the risk of wear of the micronozzle is reduced.

In addition, since the ink-jet printer is electronically controlled, the computer can easily control the conversion from one color layer to another. Therefore, after determining the contact lens design and separating it into several colored layers, the color of the wearer's iris can be changed to cyan by printing each colored layer on the contact lens using ink-jet printing. Contact lenses can be made.

The present invention provides a lens capable of changing the color of the iris to a fascinating turquoise while making the appearance of the iris look natural by realizing the microstructure of the wearer's iris as it is. Without departing from the spirit and scope of the invention as defined in the following claims, it is possible to vary the function and arrangement of the components used in the invention, and to employ the means illustrated and described herein. It may be replaced with another equivalent to, and one aspect may be used independently of the other aspects.

Claims (20)

And a pupil portion and an iris portion surrounding the pupil portion, wherein the iris portion is at least partially coated with a cyan colorant having a blue component, a green component, a titanium dioxide component and a purple component. The colored contact lens of claim 1, wherein the blue component comprises PCN blue. 2. The colored contact lens of claim 1, wherein the green component comprises PCN green. 2. The colored contact lens of claim 1, wherein the purple component comprises carbazole violet. The colored contact lens of claim 1, wherein the cyan colorant is an ink paste comprising about 0.63 wt% PCN blue, about 2.25 wt% PCN green, 8.88 wt% titanium dioxide and 0.08 wt% carbazole violet. 6. The lens of claim 5, wherein the cyan colorant is L ^* of about 43.3, a ^* of about -24.9 when measured according to CIE Color Notation System, when the colorant is the only colorant coated on the contact lens. , colored contact lens having a property such that ab ^* is about −9.8. 6. The method of claim 5, wherein the cyan colorant, when the colorant is the only colorant applied on the contact lens, as measured by spectrophotometry, the lens exhibits abnormal reflectance at wavelengths of about 430 to about 600 nm, i. A colored contact lens having the property of rising to about 30 reflective units at a wavelength of 480 nm. A non-opaque pupil, an iris portion surrounding the pupil, and a colored opaque discontinuous pattern on the iris, the pattern being non-opaque with a significant portion thereof, the pattern also having an area of the iris portion. Covering about 25% or more of the elements of the pattern that are usually indistinguishable to observers of vision, and wherein the pattern includes a turquoise colorant, a pale brown colorant, and a dark colorant to change the appearance of the human iris to cyan. Colored contact lenses worn for the purpose. 9. The colored contact lens of claim 8, wherein the cyan colorant comprises PCN blue, PCN green, titanium dioxide, and violet. 9. The colored contact lens of claim 8, wherein the turquoise colorant is applied as a pattern element in the form of a collective outer starburst. The colored contact lens of claim 8, wherein the light brown colorant comprises PCN blue, titanium dioxide, IO red and IO yellow. 9. The colored contact lens of claim 8, wherein the light brown colorant is applied as a pattern element in the form of a collective internal starburst. 9. The colored contact lens of claim 8, wherein the dark colorant is a black colorant. 9. The colored contact lens of claim 8, wherein the dark colorant is applied as a pattern element in the form of a collective outermost starburst. A non-opaque pupil, an iris surrounding the pupil, and two or more colored opaque discontinuous patterns on the iris, the pattern being non-opaque with a significant portion thereof At least about 25% of the iris area, wherein the elements of the first pattern comprise a cyan colorant and the elements of the second pattern include a light brown colorant. 16. The colored contact lens of claim 15, wherein the turquoise colorant is applied as a pattern element in the form of a collective outer starburst. 16. The colored contact lens of claim 15, wherein the light brown colorant is applied as a pattern element in the form of a collective internal starburst. 16. The colored contact lens of claim 15, having a third pattern, wherein the elements of the third pattern comprise dark colorants. 19. The colored contact lens of claim 18, wherein the dark colorant is black. 20. The colored contact lens of claim 19, wherein the black colorant is applied as a pattern element in the form of a collective outermost starburst.