TWI644980B - Composition for preparing anti-blue-violet contact lens and anti-blue-violet contact lens - Google Patents

Abstract

A composition for preparing an anti-blue-violet contact lens comprising a crosslinking agent, a starter, at least one monomer or prepolymer, and one or more azo reactive dyes. The prepolymer is obtained by polymerization of a monomer mixture containing the monomer. The lens body obtained by polymerizing the composition for preparing an anti-blue-violet contact lens has a transmittance of less than 85% under visible light having a wavelength of 380 to 500 nm, and 85 with visible light having a wavelength of more than 500 to 780 nm. ~100% penetration. The contact lens prepared by the invention for preparing the composition of the anti-blue-violet contact lens can effectively block the blue-violet light, and can prevent the wearer's eyes from being damaged by the blue-violet light.

Description

Composition for preparing anti-blue-violet contact lens and anti-blue-violet contact lens

The present invention relates to a composition for preparing a contact lens and a contact lens made therefrom, and more particularly to a composition for preparing an anti-blue-violet contact lens and a composition thereof. Contact lenses.

Since the visible light source does not have a white light source, the white backlights used in various conventional displays are mostly obtained by mixing blue light, green light, and yellow light. Green and yellow light have less energy and less irritation to the eye; while blue light has a shorter wavelength and higher energy, which may cause opacity of the lens to form a cataract, or it may penetrate the lens of the eye and reach the retina, causing the retina. hurt. However, at present, products such as computers, televisions, or mobile phones display a richer color display with higher contrast ratio by increasing the proportion of blue light in a white backlight, but it also poses a great threat to the user's vision and eyes.

In addition to the use of a large number of white backlights in display devices, lighting devices (such as LED lights) also use a large number of white light sources, or even directly use blue light sources. In particular, many vehicles currently use LEDs. Headlights, when driving at night, the light emitted by the LED lights can cause glare residual problems, and increasing the driver's eye lesions is more likely to cause a car accident.

In recent years, many scholars in various countries have said that blue light will increase the sensitivity of light cells to light and photooxidation, leading to cell death, affecting vision, and causing damage to retinal cells, especially light sensitivity. Macular damage.

In view of the problems caused by the aforementioned various blue light, in addition to passively avoiding exposure to blue light, a more active solution at present is to wear blue glasses. Existing commercially available anti-blue glasses only include glasses that are worn on the outside of the eye, mainly by coating a glass or plastic lens with a coating containing an anti-blue dye, and then assembling or mounting the coated glass or plastic lens. Made on the frame. However, in actual use, since there is a distance between the glasses worn on the outside of the eyes and the eyes, the blue light does not necessarily enter the wearer's eyes through the lenses, and there is still a chance of directly entering the eyes of the wearer. Therefore, existing commercially available Blu-ray glasses cannot completely block blue light, and cannot provide any protection against blue light for a group that is accustomed to wearing contact lenses.

It can be seen from the above description that in the case of blue light, it has become an unavoidable light source, and based on commercially available anti-blue glasses, it is limited to glasses worn outside the glasses, and cannot completely block the blue light and protect the contact lens group. Contact lenses attached to the surface of the eyeball increase the anti-blue light effect and should help to block the blue light and protect the wearer's eyes.

In view of the problems inherent in the aforementioned commercially available anti-blue glasses, the inventors of the present invention attempted to develop contact lenses to try to increase the anti-blue light effect, while trying to make the contact lenses have the effect of blocking visible light having a wavelength of 380 to 500 nm (also It is anti-blue-violet light effect).

Accordingly, it is an object of the present invention to provide a composition for preparing an anti-blue-violet contact lens that can effectively block visible light having a wavelength of 380 to 500 nm.

Thus, the present invention is useful for preparing a composition for an anti-blue-violet contact lens comprising a crosslinking agent, a starter, at least one monomer or prepolymer, and one or more azo reactive dyes. The prepolymer is obtained by polymerization of a monomer mixture containing the monomer. The azo-reactive dye has a transmittance of less than 85% under visible light having a wavelength of 380 to 500 nm and a transmittance of 85 to 100% under visible light having a wavelength of more than 500 to 780 nm.

Another object of the invention is to provide an anti-blue-violet contact lens.

The anti-blue-violet contact lens comprises a lens body obtained by polymerizing the above-described composition for preparing an anti-blue-violet contact lens.

The effect of the invention is that the composition for preparing the anti-blue-violet contact lens can make the contact lens formed by the subsequent composition effectively control the visible light with the wavelength of 380 to 500 nm according to actual needs by using the azo reactive dye. (ie blue-violet range) into the eye The ratio is used to achieve the purpose of protecting the wearer's eyes.

The contents of the present invention will be described in detail below:

[Composition for preparing anti-blue-violet contact lenses]

The composition for preparing an anti-blue-violet contact lens of the present invention comprises a crosslinking agent, a starter, at least one monomer or prepolymer, and one or more azo reactive dyes. The details of each component are described below:

Crosslinker

The crosslinking agent may use any crosslinking agent used to prepare the contact lens, and may be selected depending on the monomer or prepolymer used. Preferably, the crosslinking agent is selected from the group consisting of ethylene glycol dimethacrylate (EGDMA), diethylene glycol dimethacrylate, tetraethylene glycol dimethyl Tetraethylene glycol dimethacrylate, polyethylene glycol dimethacrylate, trimethylolpropane trimethacrylate (TMPTMA), penterythritol tetramethacrylate , bisphenol A dimethacrylate, vinyl methacrylate or a combination of the foregoing.

The content of the crosslinking agent may be adjusted according to the content of the monomer or prepolymer and the properties required for the subsequent product, preferably, the total weight of the composition for preparing the anti-blue-violet contact lens is 100 wt%. The content of the crosslinking agent ranges from 0.01% by weight to 3% by weight.

2. Starter

The initiator may use any of the initiators used to prepare the contact lenses, and may be selected depending on the monomers or prepolymers used. Preferably, the initiator is selected from the group consisting of bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide, benzoin ethyl ether ( Benzoin ethyl ether), benzyl dimethyl ketal, alpha, alpha-diethoxyacetophenone or a combination of the foregoing.

The content of the initiator may be adjusted depending on the content of the monomer or prepolymer and the properties required for the subsequent product, preferably, the total weight of the composition for preparing the anti-blue-violet contact lens is 100 wt%. The content of the initiator is in the range of 0.01% by weight to 3% by weight.

3. At least one monomer or prepolymer

The monomer or prepolymer refers to the material of the lens body constituting the contact lens, that is, the material which can control the water content of the contact lens after molding and which allows the molded contact lens to have mechanical strength, moisturizing and moisturizing properties. The monomer or prepolymer and the crosslinking agent in the presence of the initiator will undergo photopolymerization or thermal polymerization.

The monomer can be any monomer that is capable of photopolymerization or thermal polymerization and is used to form the lens body of the contact lens. Preferably, the monomer optionally uses a modified monomer such as a monomer having a radical reactive group, a hydrophilic group, and a radical reaction. Monomer of the group, etc. More preferably, the monomer is selected from And a hydrophilic molecule containing at least one unsaturated hydrocarbon group or a saturated hydrocarbon group.

The oxoxane containing at least one unsaturated hydrocarbon group is, for example but not limited to: (1) a reactive siloxane gas stream in a modified silicone fluid series sold by Shin-Etsu Chemical Co., Ltd.: double-end reaction A dual-end reactive silicone fluid and a single-end reactive silicone fluid; (2) a reactive oxirane product sold by Gelest: methyl methacrylate Oxypropyl propyl terminated polydimethyl siloxanes and 3-acryloxy-2-hydroxypropoxypropyl terminated Poly-dimethylsiloxanes) and the like.

The above "unsaturated hydrocarbon group" is a hydrocarbon group containing an unsaturated group, such as, but not limited to, a (meth) acrylate group, a (meth) acryl group, a (meth) acryl fluorenyl group or the like.

The unsaturated hydrocarbon group containing a hydrophilic molecule such as, but not limited to, acrylic acid, (meth) acrylic acid, N - vinylpyrrolidone (N -vinyl pyrrolidone), a hydroxyalkyl (meth) acrylate or di-hydroxyalkyl (meth ) Acrylate and the like. The hydroxyalkyl (meth) acrylate can be, for example, 2-hydroxyethyl methacrylate (HEMA), 2-hydroxyethyl acrylate, 4-hydroxybutyl acrylate. 4-hydroxybutyl acrylate, hydroxypropyl acrylate, and the like. The dihydroxyalkyl (meth) acrylate may, for example, be 2,3-dihydroxypropyl methacrylate (GMA) or the like.

The prepolymer is obtained by polymerizing a mixture of a siloxane containing at least one unsaturated hydrocarbon group, a hydrophilic monomer, and a monomer containing a double bond. The oxime containing at least one unsaturated hydrocarbon group is as described in [0025]. The hydrophilic monomer is for example but not limited to a polyhydric alcohol. The polyhydric alcohol is, for example, polyethylene glycol, a copolymer of polyethylene glycol and polypropylene glycol, etc., and the polyhydric alcohol preferably has a weight average molecular weight of from 300 to 2,000. The double bond-containing monomer is, for example, (meth) acrylate or acrylamide.

The above term "(meth)acrylic acid" includes acrylic acid and methacrylic acid.

The content of the monomer or prepolymer can be adjusted according to the properties required for the subsequent product, preferably, the monomer or prepolymer is calculated based on the total weight of the composition for preparing the anti-blue-violet contact lens of 100% by weight. The content of the substance ranges from 40% by weight to 99% by weight.

4. Azo reactive dye

The azo-reactive dye is required to use a dye which is non-toxic and meets the requirements for preparation of a biomedical device, and is preferably an azo-reactive dye prescribed by the U.S. Food and Drug Administration (FDA). Preferably, the azo reactive dye is selected from the group consisting of C.I. reactive orange 78, C.I. reactive yellow 86, C.I. reactive yellow 15, C.I. reactive red 11 or C.I. reactive red 180.

The azo reactive dye can be carried out according to a known regulation, preferably, the total weight of the composition for preparing the anti-blue-violet contact lens is 100% by weight, and the content of the azo reactive dye is It is from 0.01 wt% to 3 wt%. When the content of the azo-reactive dye is more than 3% by weight, the contact lens formed subsequently will be yellowish, thereby causing visual chromatic aberration, which is disadvantageous for the user to wear.

Preferably, the composition for preparing an anti-blue-violet contact lens may further comprise a diluent. The diluent may be any diluent used to prepare the contact lens, and may be selected depending on the monomer or prepolymer used. Preferably, when the monomer is a hydrophilic molecule containing an unsaturated hydrocarbon group, the diluent is selected from the group consisting of monoalcohols, polyols, polyesters or a combination of the foregoing. Preferably, when the monomer is a decane having at least one unsaturated hydrocarbon group, the diluent is a polar solvent and is selected from the group consisting of monoalcohols, polyols, dimethyl hydrazine or a combination of the foregoing. The monools are, for example, ethanol, propanol, isopropanol and the like. The polyols are, for example, glycerin, polyethylene glycol, polypropylene glycol or the like. The polyvalent esters are, for example, boric acid esters. The diluent can be carried out according to a known mode of control, preferably calculated from the total weight of the composition for preparing the anti-blue-violet contact lens, which is 100% by weight, and the content of the diluent ranges from 0.01% by weight to 55% by weight.

Preferably, the composition for preparing an anti-blue-violet contact lens may further comprise an ultraviolet absorber. The ultraviolet absorber is, for example but not limited to, 2-(2-hydroxy-5-methacryloxyethylphenyl)-2H-benzotriazole [2-(2-hydroxy-5-methacryloxyethylphenyl)-2H- Benzo-triazole], benzotriazole (BTA), 2-hydroxy-benzophenone, 2-(4-benzylidene-3-hydroxyphenoxy)acrylic acid ester [2-(4-benzoyl-3-hydroxyphenoxy)ethyl acrylate], 4-methacryloxy-2-hydroxybenzophenone, and the like. Preferably, the ultraviolet absorber is present in an amount ranging from 0.01% by weight to 3% by weight based on the total weight of the composition for preparing the anti-blue-violet contact lens of 100% by weight.

The composition for preparing an anti-blue-violet contact lens is obtained by mixing the crosslinking agent, the initiator, the monomer or prepolymer, the azo reactive dye, or the diluent selected and the ultraviolet absorber. be made of.

[Anti-Blue Violet Contact Lens]

The anti-blue-violet contact lens of the present invention comprises a lens body. The lens body is obtained by polymerizing the above-described composition for preparing an anti-blue-violet contact lens. Preferably, the polymeric forming is carried out under ultraviolet light. More preferably, the polymerization molding is carried out under ultraviolet light having a wavelength of 365 nm. The irradiation intensity of the ultraviolet light can be controlled to be 1 to 40 mW/cm ² .

Preferably, the lens body has a transmittance of less than 85% under visible light having a wavelength of 380 to 500 nm and a transmittance of 85 to 100% under visible light having a wavelength of more than 500 to 780 nm.

Preferably, the anti-blue-violet contact lens further comprises a dot-shaped region located in the lens body and composed of a center point and a plurality of loops, wherein the center point is located at a center position of the lens body, The loop is centered around the center point and is spaced around the center point in a direction from the center point to the center point. a column, each ring ring has a plurality of reflection points having a certain distance from the center point, and the penetration rate of the reflection points contained in the rings under visible light is located away from the ring circle located near the center point The circle of the center point is decremented. The transmittance of visible light in different loops is different under visible light to adjust and control the incidence of light, thereby avoiding the damage of blue-violet light to the crystal and the retina.

The above-mentioned anti-blue-violet contact lens containing a dot-like region can be prepared by a known process, such as a sandwich process: (1) a monomer or a prepolymer (a monomer or a prepolymer in the composition of the present invention can be used), Resin, dispersant and solvent are mixed to obtain a mixed material; (2) by using pad printing or screen printing, the mixed material is coated on a plastic mold and naturally dried, and a plastic mold is formed on the plastic mold. a transparent film; (3) grinding and mixing a pigment (or dye), a resin, a dispersing agent, and a solvent to obtain an ink, and then coating the ink on a patterned steel plate (which is formed by a general photolithography method and using etching) The process is formed on a specific pattern thereon, and then PAD printing is applied to the surface of the transparent film of the plastic mold, and the composition for preparing the anti-blue-violet contact lens is injected into the plastic mold, and then ultraviolet Polymerization was carried out under light irradiation. After the molding, the plastic mold is removed to obtain the anti-blue-violet contact lens containing the dot-like region, wherein the reflection point on the dotted region does not fall off due to the protection of the transparent film.

[0041] The pigment (or dye) mentioned is required to be a pigment (or dye) approved by the US Food and Drug Administration, wherein the pigment is, for example but not limited to, Carbazole violet, phthalocyanine green (Phthalocyanine green), Titanium oxide, Chromium-cobalt-aluminum oxide, Chromium oxide green, Iron oxide, Phthalocyaninato (II) copper , CI Pigment Violet 23, CI Pigment Blue 36, etc. The dye is, for example but not limited to, CI reaction type orange 78, CI reaction type yellow 86, CI reaction type yellow 15, CI reaction type red 11, CI reaction type red 180, CI solvent blue 101 (CIsolvent blue 101; chemical name 1 , 4-Bis[(2-methylphenyl)amino]-9,10-anthracenedione), CI-reactive blue 246, CI-reduced orange 1 (CIvat orange 1), CI-reduced brown 1 (CIvat brown 1), CI reduction CIvat yellow 3, CIvat blue 6 , CIvat green 1 , CI Solvent Yellow 18, CI vat orange 5, etc. The pigment or dye may be used singly or in combination. In a specific example of the invention, an iron oxide pigment is used.

[0041] The resin mentioned is a resin which generally allows a pigment (or dye) to adhere to the lens body, such as, but not limited to, a copolymer of 2-hydroxyethyl methacrylate and N -vinyl pyrrolidone [poly(HEMA) -co-NVP)].

[0041] The dispersant for dispersing the pigment is mentioned (or dyes), such as, but not limited to, Pluronic ^® F-127 BASF Corporation manufactured.

[0041] The solvent mentioned is used to assist in dispersing the pigment (dye), adjusting the viscosity of the ink, and improving the operability of printing. The solvent For example, but not limited to, an organic solvent such as ethanol, propanol, isopropanol or acetone, and these solvents may be used singly or in combination.

The number of loops and the number of reflection points in the dotted area are adjusted according to actual product needs. The size of the reflection point, the spacing between the individual reflection points, and the number of reflection points in the ring will determine the transmittance of visible light. In the case of not affecting the vision, the specific aspect of the penetration rate control is, for example but not limited to: (Stage 1). When the reflection points in each ring have the same size, the reflection in the control ring can be transmitted. The number of points is controlled. The more the number, the smaller the pitch, the lower the penetration rate; (Stage 2) When the number of reflection points in the ring is a certain value, the reflection in each ring can be adjusted. The diameter of the point, the larger the diameter, the lower the penetration rate; (Stage 3) can control the penetration rate by simultaneously adjusting the number and size of the reflection points. The number is large and the size is large, and the penetration rate will be lower. . In the above various aspects, based on the fact that the visual point is not affected, the reflection point of the reflection point in the ring close to the center point under the visible light needs to be larger than the reflection point in the ring circle away from the center point under the visible light. Transmittance.

Preferably, the anti-blue-violet contact lens further comprises a transparent film covering the punctiform region. The transparent film may be composed of a mixed material comprising at least one monomer or prepolymer, a resin, a dispersing agent, and a solvent. The monomer or prepolymer can be referred to the description of [0024] to [0028], the resin can be described with reference to [0043], the dispersant can be described with reference to [0044], and the solvent can be described with reference to [0045].

Preferably, the diameter of the light region of the lens body is generally 9 mm or less. Preferably, the center point has a diameter of 0.1 to 1 mm. Preferably, the reflection points have a diameter of 0.001 to 0.5 mm, wherein when the diameters of the reflection points are less than 0.01 mm, they are transparent because they are not easily recognized by the naked eye, and have a high transmittance under visible light. When the diameter of the reflection points is greater than or equal to 0.01 mm, it exhibits a solid opacity and a low transmittance under visible light. More preferably, the reflection points have a diameter of 0.01 to 0.25 mm and are solid opaque.

Preferably, the spacing between the reflection points in the same loop is 0.001 to 1.0 mm. More preferably, the spacing between the reflection points in the same loop is from 0.01 to 0.5 mm.

Preferably, the reflectance of the reflection points under visible light having a wavelength of 380 to 500 nm is less than 85%.

1‧‧‧ lens body

10‧‧‧ center point

2‧‧‧ Point area

21‧‧‧ ring

211‧‧‧ first ring

2111‧‧‧Reflection points

212‧‧‧second ring

2121‧‧‧Reflection points

213‧‧‧ Third ring

2131‧‧‧Reflection points

214‧‧‧ fourth ring

2141‧‧‧Reflection points

215‧‧‧ fifth ring

2151‧‧‧Reflection points

Other features and effects of the present invention will be apparent from the embodiments of the drawings, in which:

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a preferred application of the anti-blue-violet contact lens of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

The invention will be further illustrated by the following examples, but it should be understood that this embodiment is for illustrative purposes only and should not be construed This is a limitation of the implementation of the invention.

[Examples 1 to 6] Compositions for preparing anti-blue-violet contact lenses

2-Hydroxyethyl methacrylate (monomer A), acrylic acid (monomer B), ethylene glycol dimethacrylate (crosslinking agent), oxidized double (2) according to the content ratio of Table 1 below , 4,6-trimethylbenzylidene)phenylphosphine (starting agent), 2-(2-hydroxy-5-methylpropenyloxyethylphenyl)-2H-benzotriazole ( The ultraviolet light absorber) was mixed with CI reactive yellow 86 (azo reactive dye) to obtain the composition for preparing an anti-blue-violet contact lens.

[Application Examples 1 to 6] Anti-blue-violet contact lenses

The common method of the application examples 1 to 6 is as follows, and the application example 1 is taken as an example for explanation:

Copolymer of 2-hydroxyethyl methacrylate and acrylic acid (monomer), 2-hydroxyethyl methacrylate and N -vinylpyrrolidone (resin) and Pluronic ^® F-127 (dispersant) The propanol (solvent) is mixed to obtain a mixed material. By means of printing, the mixed material is coated on a plastic mold and allowed to dry naturally, and a transparent film is formed on the plastic mold.

Iron oxide (pigment), 2-hydroxyethyl methacrylate and N - copolymer (resin) of vinyl pyrrolidone and Pluronic ^® F-127 (dispersant) grinding and mixing with isopropanol (solvent), To get the ink. The ink is applied to a steel sheet having a pattern (shown in FIG. 1) which is formed by patterning using a general photolithography method and using an etching process, and then transferred onto the surface of the transparent film of the plastic mold. Then, the composition for preparing the anti-blue-violet contact lens prepared in Example 1 was respectively injected into the plastic mold, and then irradiated with ultraviolet light having a wavelength of 365 nm (irradiation intensity was 20 mW/cm ² , and irradiation time was about 30). Polymerization was carried out in minutes. After the molding, the plastic mold is removed to obtain an anti-blue-violet contact lens.

The structure of the prepared anti-blue-violet contact lens is shown in FIG. The anti-blue-violet contact lens comprises a lens body 1, a dot region 2 and a transparent film (not shown) covering the dot region. The dot region 2 is located in the lens body 1 and is composed of a center point 10 (diameter of 0.2 mm) and five loops 21 (the first loop 211 is sequentially from the center point 10 to the center point 10). The second ring 212, the third ring 213, the fourth ring 214 and the fifth ring 215 are composed of. The center point 10 is located at the At the center position of the lens main body 1, the loops 211 to 213 are arranged at intervals around the center point 10 and are spaced around the center point 10 in a direction from the center point 10 to the center point 10. The first loop 211 is closest to the center point 10 and has six reflection points 2111 (formed by ink pad printing) having a certain distance from the center point 10, and the reflection points 2111 have a diameter of 0.05 mm. It is 0.3mm. The second loop 212 is located between the first loop 211 and the third loop 213 and has 12 reflection points 2121 having a certain distance from the center point 10, and the reflection points 2121 have a diameter of 0.1 mm. The spacing is 0.5mm. The third loop 213 contains 18 reflection points 2131 having a certain distance from the center point 10, and the reflection points 2131 have a diameter of 0.2 mm and a pitch of 0.7 mm. The fourth ring 214 contains 24 reflection points 2141 having a distance from the center point 10, the reflection points 2141 having a diameter of 0.3 mm and a pitch of 0.85 mm. The fifth loop 215 is furthest from the center point 10 and contains 30 reflection points 2151 having a distance from the center point 10, the reflection points 2151 having a diameter of 0.4 mm and a pitch of 1.0 mm.

The transmittance at visible light having a wavelength of 380 to 500 nm is sequentially from high to low: the transmittance of the reflection point 2111 located at the first loop 211 near the center point 10 > the reflection point 2121 of the second loop 212 Transmittance > Transmittance of the reflection point 2131 of the third ring 213 > Transmittance of the reflection point 2141 of the fourth ring 214 > Reflex point 2151 located at the fifth ring 215 away from the center point 10 Penetration rate.

In order to understand the optical properties of the lens body produced, The minimum transmittance (%) and the average transmittance (%) of the lens body obtained by the light-ultraviolet absorption spectrometer at a wavelength of 380 to 500 nm were examined, and the results are summarized in Table 2, respectively.

From the results of Table 2, it was found that the control of the amount of the dye can effectively control the transmittance of blue-violet light having a wavelength range of 380 to 500 nm to the lens main body. The higher the amount, the lower the penetration rate will be.

In summary, the composition for preparing a blue-violet-resistant contact lens of the present invention can effectively control the visible light having a wavelength of 380 to 500 nm according to actual needs by using an azo-reactive dye or alternatively matching a dot-like region design. The proportion of the eye (in the blue-violet range) entering the eye, thereby protecting the wearer's eyes, can indeed achieve the object of the present invention.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and patent specification content of the present invention, All remain within the scope of the invention patent.

Claims (7)

An anti-blue-violet contact lens comprising a lens body obtained by polymerizing a composition for preparing an anti-blue-violet contact lens, the composition for preparing an anti-blue-violet contact lens comprising: a crosslinking agent; an initiator; at least one monomer or prepolymer obtained by polymerizing a monomer mixture containing the monomer; and one or more azo reactive dyes; The lens body has a transmittance of less than 85% under visible light having a wavelength of 380 to 500 nm, and a transmittance of 85 to 100% under visible light having a wavelength of more than 500 to 780 nm; and the azo reactive dye is selected from the group consisting of It is a CI-reactive orange 78, a CI-reactive yellow 86, a CI-reactive yellow 15, a CI-reactive red 11 or a CI-reactive red 180. The anti-blue-violet contact lens according to claim 1, further comprising a dot-shaped region located in the lens body and composed of a center point and a plurality of loops, wherein the center point is located at a center of the lens body. The loops are centered around the center point and are spaced apart from the center point in a direction close to the center point, and each loop has a plurality of distances from the center point. Reflection point, the reflection point of the ring The transmittance under visible light is diminished from a loop located near the center point toward a loop located away from the center point. The anti-blue-violet contact lens of claim 2, wherein the reflectance of the reflection points under visible light having a wavelength of 380 to 500 nm is less than 85%. The anti-blue-violet contact lens according to claim 1, wherein the content of the azo-reactive dye ranges from 0.01 wt% to 3 wt%, based on the total weight of the composition for preparing the anti-blue-violet contact lens, 100 wt%. %. The anti-blue-violet contact lens according to claim 1, wherein the monomer or prepolymer is contained in an amount ranging from 40% by weight to 99% by weight based on the total weight of the composition for preparing the anti-blue-violet contact lens. %. The anti-blue-violet contact lens according to claim 1, wherein the monomer is selected from a siloxane having at least one unsaturated hydrocarbon group or a hydrophilic molecule containing an unsaturated hydrocarbon group. The anti-blue-violet contact lens of claim 1, wherein the prepolymer is polymerized from a mixture of a siloxane containing at least one unsaturated hydrocarbon group, a hydrophilic monomer, and a monomer having a double bond. And got it.