TW202138448A - Anti-blue light contact lens, composition and manufacturing method thereof - Google Patents

Abstract

An anti-blue light contact lens composition includes at least one hydrogel monomer, a yellow dye, a blue pigment, a cross-linking agent, and a photoinitiator. The invention also provides a manufacturing method of preparing an anti-blue light contact lens, which includes providing a mold comprising a male mold and a female mold; preparing an anti-blue light contact lens composition　which comprises a yellow dye and a blue pigment; injecting the composition into the female mold, combining the male mold and the female mold and performing pressing; performing light curing and forming a lens body; and performing hydration and forming a contact lens. The invention also provides an anti-blue light contact lens comprising the composition mentioned above, which has a transmittance of less than 75% for light with a wavelength of 380 to 460 nm and a transmittance of more than 85% for light with a wavelength of 380 to 780 nm.

Description

Anti-blue light contact lens, its composition and preparation method

The present invention relates to an anti-blue light contact lens, its composition and a preparation method, in particular to a contact lens that has both anti-blue light function and aesthetic effect, and its composition and preparation method.

With the rapid development of science and technology, 3C and electronic products have almost become indispensable necessities of modern life. However, LED lights and the screens of tablet computers, TVs, and smart phones emit blue light. When using 3C products, the eyes will inevitably look directly at the blue light emitted by the screen. Blue light is the strongest part of visible light that is closest to the ultraviolet light wave, and its wavelength is between 380nm and 530nm. Its shorter wavelength will focus in front of the retina in advance, which is likely to cause scattering. Therefore, the eyes need to focus harder and it is difficult to relax. Over a long period of time, the image contrast and clarity of the eye's vision will be reduced, and eye fatigue will increase.

In recent years, a number of studies have shown that blue light can increase the sensitivity of visual cells to light and the photooxidation reaction leads to cell death. It affects vision in the least, and damages retinal cells, especially the macular area with high light sensitivity. damage.

Blue light will not be absorbed by the cornea and lens after it enters the eye, and it can penetrate the cornea and lens and be directed into the macula. If too much blue light is absorbed, the eyes will have tingling, photophobia and other symptoms in the initial stage, but in the long term, the macula will become inflamed and edema, and a crypt may form in the center of the macula. Once the crypts rupture and cause bleeding, the central vision will be impaired and you will not be able to see things clearly. In the past, macular lesions were more likely to occur in the elderly. However, in modern times, with the change of life and the increase of blue light stimulation, the age group of onset tends to decrease. Anti-blue light has become an important issue.

In view of the various problems caused by blue light, in addition to minimizing blue light exposure, the current more active solution is to wear anti-blue light glasses. The existing commercially available anti-blue glasses are glasses worn outside the eyes, which are mainly made by coating a layer of anti-blue paint on glass or plastic lenses, and then assembling the glass or plastic lenses on the frame. However, in actual use, due to the distance between the glasses worn outside the eyes and the eyes, blue light does not necessarily enter the wearer's eyes through the lenses, so there is still a possibility of directly entering the wearer's eyes. Therefore, the existing commercially available anti-blue light glasses cannot completely block blue light, and cannot provide blue light protection for people who are accustomed to wearing contact lenses.

Therefore, if the anti-blue light effect can be added to the contact lens attached to the surface of the eyeball, it should be more helpful to block blue light and protect the wearer's eyes. In this regard, such as the "color contact lens with blue light filtering and anti-UV function" disclosed in the Republic of China Patent No. M487455, which is composed of upper, middle and lower lenses, and the blue light filter coating agent in the upper lens to achieve reduction Blue light enters the eyes, but in addition to time-consuming, labor-intensive and cost-consuming contact lenses, there is a risk of eye damage.

The present invention provides an anti-blue light contact lens composition, which is suitable for preparing contact lenses with anti-blue light function, avoiding visual fatigue of the wearer, avoiding visual chromatic aberration, and helping to improve the aesthetic effect.

The invention also provides a preparation method of the anti-blue light contact lens composition, which is suitable for preparing contact lenses with anti-blue light function and beautiful appearance.

The invention also provides an anti-blue light contact lens, which has an anti-blue light function and is beautiful, which helps improve the wearer's use experience.

The other objectives and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

In order to achieve one or part or all of the above objectives or other objectives, the anti-blue light contact lens composition provided by the present invention includes at least one hydrogel monomer, a yellow dye, a blue pigment, a crosslinking agent and a photoinitiator, The content of the yellow dye and the blue pigment accounts for 0.01 wt% to 1 wt% of the composition.

In an embodiment of the present invention, the above-mentioned yellow dye includes a reactive yellow dye, the blue pigment includes phthalocyanine blue 15, and the content ratio of the yellow dye to the blue pigment is 11:1-7:1.

In an embodiment of the present invention, at least one of the above-mentioned hydrogel monomers contains an unsaturated hydrocarbon-based hydrophilic molecule, and is acrylic acid, methacrylic acid, N-vinylpyrrolidone, hydroxyalkyl (meth)acrylate, two Hydroxyalkyl (meth)acrylate, 2-hydroxyethyl methacrylate or a combination thereof, and the content of at least one hydrogel monomer is 50 wt% to 99 wt%.

In an embodiment of the present invention, the above-mentioned crosslinking agent is ethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, diethylene glycol dimethacrylate, polyethylene glycol dimethyl acrylate Base acrylate, trimethylolpropane trimethacrylate, pentaerythritol tetramethacrylate, bisphenol A dimethacrylate, vinyl methacrylate or a combination thereof, and the content of the crosslinking agent is 0.01 wt% To 2.5 wt%.

In an embodiment of the present invention, the aforementioned photoinitiator is bis(2,4,6-trimethylbenzyl)phenylphosphine oxide, ethyl benzoin, phenyldimethyl ketal, α, α-diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenyl-1-acetone or a combination thereof, and the content of the photoinitiator is 0.01 wt% to 2.5 wt%.

In an embodiment of the present invention, the above-mentioned composition further comprises an ultraviolet light absorber, and the ultraviolet light absorber is 2-[3-(2H-benzotriazol-2-yl)-4-hydroxyphenyl]ethyl 2-methacrylate, 2,2',4,4'-tetrahydroxybenzophenone or a combination thereof, and the content of the ultraviolet light absorber is 0.01 wt% to 1.5 wt%.

In order to achieve one or part or all of the above objectives or other objectives, the method for preparing anti-blue light contact lenses provided by the present invention includes providing a mold, and the mold includes a male mold and a female mold; preparing an anti-blue light contact lens composition, And the composition includes yellow dye and blue pigment; the composition is injected into the master mold, and then the male mold and the master mold are pressed together; the light curing is performed to form the lens body; and the hydration is performed to form the contact lens.

In an embodiment of the present invention, the inner surface of the above-mentioned master mold is pad-printed with a color pattern.

In an embodiment of the present invention, the step of preparing the anti-blue light contact lens composition further includes mixing at least one hydrogel monomer, yellow dye, blue pigment, crosslinking agent and photoinitiator.

In an embodiment of the present invention, the step of preparing the anti-blue light contact lens composition further includes mixing at least one hydrogel monomer, yellow dye, blue pigment, crosslinking agent, photoinitiator and ultraviolet light absorber.

In an embodiment of the present invention, the step of photocuring and forming the lens body further includes irradiating the composition in the master mold with ultraviolet light to cause the composition to undergo photopolymerization to form the lens body.

In an embodiment of the present invention, the above method further includes removing the male mold and leaving the lens body in the female mold to perform hydration and form contact lenses.

In an embodiment of the present invention, the step of performing hydration and forming a contact lens further includes performing hydration at a temperature of 40-100° C. to form a contact lens.

In an embodiment of the present invention, the above-mentioned method further includes sterilizing the contact lens.

In an embodiment of the present invention, the above-mentioned sterilization step includes immersing the contact lens in a buffer solution and sterilizing it at a high temperature.

In order to achieve one or part or all of the above objectives or other objectives, the anti-blue light contact lens provided by the present invention comprises the aforementioned composition, and has a transmittance of less than 75% for light with a wavelength of 380 to 460 nm, and has a transmittance of less than 75% for the wavelength of It has a transmittance of greater than 85% under light from 380 to 780 nm.

In an embodiment of the present invention, the aforementioned anti-blue light contact lens has a green, blue-green or blue hue.

Since the present invention includes a yellow dye, it can absorb visible light with a wavelength in the blue range, which helps to reduce the amount of high-energy light delivered to the eyes, and reduces the chances of eye fatigue, reduced vision or visual cell damage. Since the present invention includes blue pigments, it is helpful to make the blue light-resistant contact lenses, blue light-resistant contact lenses made with the composition, or blue light-resistant contact lenses made by the method have an appropriate hue , Improve the appearance of the glasses and the use experience of the wearer.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the following specific examples are given in conjunction with the accompanying drawings, which are described in detail as follows.

The present invention provides an anti-blue light contact lens composition, which comprises at least one hydrogel monomer, a yellow dye, a blue pigment, a crosslinker and a photoinitiator.

The water glue monomer constitutes the lens body of the contact lens, which imparts mechanical strength to the lens body and can affect the water content of the formed contact lens. The lens body formed by different hydrogel monomers can have different moisturizing properties. The water glue monomer is polymerized to form the lens body. In the embodiment of the present invention, the water gel monomer can be any monomer that can undergo photopolymerization and used in the lens body of a contact lens. Preferably, the water glue monomer of the embodiment of the present invention contains a hydrophilic molecule of an unsaturated hydrocarbon group and is, for example, acrylic acid, methacrylic acid (MAA), N-vinyl pyrrolidone (N-vinyl pyrrolidone), and hydroxyalkane. Alkyl (meth)acrylate, dihydroxyalkyl (meth)acrylate, 2-hydroxyethyl methacrylate (HEMA) or a combination thereof, but not limited thereto. In one embodiment, two or more hydrogel monomers such as 2-hydroxyethyl methacrylate (HEMA) and methacrylic acid (MAA) are used to form the lens body. The content of the water gel monomer accounts for 50 wt% to 99 wt% of the anti-blue light contact lens composition. In other embodiments, a hydrogel monomer that can form the lens body through thermal polymerization can be selected.

In the presence of the crosslinking agent and the photoinitiator, the hydrogel monomer can undergo photopolymerization to form the lens body. The cross-linking agent can be any cross-linking agent used in the preparation of contact lenses, and can be selected according to the water glue monomer used. The crosslinking agent of the embodiment of the present invention is, for example, ethylene glycol dimethacrylate (EGDMA), tetraethylene glycol dimethacrylate (tetraethylene glycol dimethacrylate), and diethylene glycol dimethacrylate. (diethylene glycol dimethacrylate), polyethylene glycol dimethacrylate, trimethylolpropanetrimethacrylate (TMPTMA), pentaerythritol tetramethacrylate, bisphenol A Dimethacrylate (bisphenol A dimethacrylate), vinyl methacrylate (vinyl methacrylate) or a combination thereof. The content of the cross-linking agent is preferably 0.01 wt% to 2.5 wt% of the blue light prevention contact lens composition.

The photoinitiator can be any photoinitiator used in the preparation of contact lenses, and can be selected according to the water gel monomer used. The photoinitiator in the embodiment of the present invention is, for example, bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide, benzoin ethyl ether), phenyl dimethyl ketal (benzyl dimethyl ketal), α,α-diethoxyacetophenone (α,α-diethoxyacetophenone), 2-hydroxy-2-methyl-1-phenyl- 1-acetone (2-Hydroxy-2-methylpropiophenone) or a combination thereof. The content of the photoinitiator is preferably 0.01 wt% to 2.5 wt% of the anti-blue light contact lens composition.

The yellow dye in the embodiment of the present invention is a reactive yellow dye (Reactive Yellow 15), but it is not limited to this, and one or more other yellow dyes and yellow pigments may also be used. Reactive yellow dyes are ethylene-based reactive dyes that have good water solubility, and have obvious absorption peaks in the wavelength range of about 390 to 430 nm for visible light, which can effectively block blue light. The blue pigment in the embodiment of the present invention is Phthalocyanine Blue 15 (Phthalocyanine Blue 15), but it is not limited to this, and one or more other blue pigments and blue dyes may also be used. The blue pigment helps to adjust the hue of the formed contact lens. In contrast to contact lenses formed using only yellow dyes, which have a yellow hue, contact lenses containing yellow dyes and blue pigments have a slightly green, blue-green or blue hue. The blue pigment does not affect the absorption of the blue wavelength by the yellow dye, and the green, blue-green or blue tone of the contact lens can help prevent the wearer from visual fatigue, avoid visual chromatic aberration, and help improve the aesthetic effect. The content of the yellow dye and the blue pigment is preferably 0.01 wt% to 1 wt% of the anti-blue light contact lens composition. The ratio of the yellow dye to the blue pigment can be arbitrary, but the amount of the yellow dye is preferably more than that of the blue pigment. The ratio of the yellow dye to the blue pigment is, for example, 11:1-7:1. In one embodiment, for example, 0.14 g of yellow dye and 0.02 g of blue pigment are used.

The anti-blue light contact lens composition may further include a UV blocker. The ultraviolet light absorber can be any ultraviolet light absorber used in the preparation of contact lenses, and can be selected according to the water glue monomer used. The ultraviolet light absorber of the embodiment of the present invention is, for example, 2-[3-(2H-benzotriazol-2-yl)-4-hydroxyphenyl]ethyl 2-methacrylate (2-[3-( 2H-Benzotriazol-2-yl)-4-hydroxyphenyl]ethyl methacrylate), 2,2',4,4'-Tetrahydroxybenzophenone (2,2',4,4'-Tetrahydroxybenzophenone) or a combination thereof. The content of the ultraviolet light absorber is preferably 0.01 wt% to 1.5 wt% of the anti-blue light contact lens composition.

The present invention also provides a method for preparing blue light-proof contact lenses, including steps S910 to S950. Please refer to FIG. 1. Step S910 is to provide a mold, and the mold includes a male mold and a female mold. The mold may be an injection molding optical mold, wherein the internal surface of the master mold can be printed with a pattern, and the pattern is preferably in color. Step S920 is to prepare an anti-blue light contact lens composition (hereinafter or simply referred to as the composition). The composition contains the aforementioned ingredients, namely at least one hydrogel monomer, yellow dye, blue pigment, crosslinking agent and photoinitiator, and preferably contains an ultraviolet light absorber.

Implementation mode 1:

In Embodiment 1, according to step S920, compositions 1 to 6 are prepared, and a control group (control group 1) is also prepared. Table 1 shows the content of each component of compositions 1 to 6 and control group 1. The difference between the control group 1 and the compositions 1 to 6 lies in the content of yellow dye and blue pigment. Table 1: Composition ratios of compositions 1 to 6 and the control group (control group 1) Crosslinking agent (wt%) Photoinitiator (wt%) Water glue monomer (wt%) UV absorber (wt%) Yellow dye and blue pigment (wt%) Composition 1 (100 wt%) 1 1 96.93 1 0.07 Composition 2 (100 wt%) 1 1 96.87 1 0.13 Composition 3 (100 wt%) 1 1 96.80 1 0.20 Composition 4 (100 wt%) 1 1 96.74 1 0.26 Composition 5 (100 wt%) 1 1 96.68 1 0.32 Composition 6 (100 wt%) 1 1 96.64 1 0.36 Control group (control group 1) 1 1 97 1 0 It should be noted that in Table 1, the total amount of the yellow dye and the blue pigment increases in the order of the compositions 1-6, and the amount of the preferred yellow dye increases in the order of the compositions 1-6. The amount of blue pigment can also be increased, but the embodiment of the present invention does not limit this. Compositions 1 to 6 may contain the same amount of blue pigment.

Next, step S930 is introduced. Step S930 is to inject the composition into the female mold, and then press the male mold and the female mold together. The conditions of pressing can be according to known methods, and the embodiment of the present invention does not limit this. Step S940 is to perform light curing and form the lens body. In the embodiment of the present invention, in step S940, ultraviolet light may be further used to irradiate the composition of the aqueous gel monomer to undergo photopolymerization to form a dry lens body. The lighting conditions can be determined by, for example, the wavelength of the light source, for example, the lighting time is determined by 385 nm ultraviolet light, but the embodiment of the present invention does not limit this. Step S950 is to perform hydration and form contact lenses.

Before hydration, the male mold can be removed first, leaving the lens body in the female mold. When step S950 is performed, the master mold can be placed in the hydration tank together with the lens body, and heated and hydrated to form a wet lens body, that is, a contact lens. The contact lens can be sterilized later. For example, the contact lens obtained in step S950 can then be put into a packaging cup, filled with a buffer solution, and packaged and sterilized. The buffer can be a PBS buffer, including Na ₂ HPO ₄ , KH ₂ PO ₄ , NaCl, KCl, or a combination thereof, but is not limited to this. For example, it may also be a boric acid buffer. Since the inner surface of the master mold provided in step S910 can be printed with color patterns, in steps S930 to S940, the color patterns are combined with the composition. In step S950, the color patterns leave the master mold as the lens body is hydrated. The resulting contact lens can therefore have a colored pattern on the surface.

Implementation mode 2:

In the second embodiment, the compositions 1 to 6 of the first embodiment are respectively used in steps S930 to S950, and sterilized to form anti-blue light contact lens samples 1 to 6. The control group (control group 1) was also treated under the same conditions to make contact lenses of the control group (control group 1). The parameters used in Embodiment 2 are shown in Table 2. Table 2: Preparation parameters Light curing Heating hydration Buffer Sterilization Sample 1 30 min 60℃ PBS buffer 120℃/30 min Sample 2 Sample 3 Sample 4 Sample 5 Sample 6 Control group (control group 1) contact lenses

It should be noted that in the second embodiment, the compositions 1 to 6 are made into contact lenses under the same conditions. However, it is known that in each step of S930~S950 and sterilization, other conditions such as light curing time, hydration temperature or buffer treatment composition 1~6 different from Table 2 can also be used. In addition, the parameters listed in Table 2 can also be used for compositions other than compositions 1 to 6.

The samples 1 to 6 and the control group (control group 1) obtained in the second embodiment can be further tested for light transmittance. The results are shown in Figs. 2 to 3 and Table 3. Table 3: Anti-blue light rate Anti-blue light contact lens Anti-blue light rate Sample 1 10% Sample 2 20% Sample 3 30% Sample 4 40% Sample 5 50% Sample 6 55% Control group (control group 1) contact lenses 3%

As shown in Figures 2 to 3, the anti-blue light contact lens and the control group (control group 1) can both resist ultraviolet light. The transmittance (T%) for wavelengths below 380 nm approaches zero. However, compared to the control group (Control Group 1), the anti-blue light contact lens can also resist blue light. As shown in Figure 2, the anti-blue light contact lens allows visible light to pass through, and can reduce the transmittance of visible light in the blue wavelength range. In the embodiment of the present invention, the anti-blue light contact lens allows a transmittance of light with a wavelength of 380 to 780 nm to be greater than 88%, and the transmittance of light with a wavelength of 380 to 460 nm is less than 75. The blue light transmittance or blue light prevention rate is roughly affected by the yellow dye contained in the composition. In an embodiment of the present invention, 0.14 wt% of the yellow dye can achieve the effect of making the transmittance of light with a wavelength of 380 to 780 nm greater than 88%, and the transmittance of light with a wavelength of 380 to 460 nm less than 75%. In contrast, the contact lens of the control group 1 allows most of the light energy at the blue wavelength to pass, and only blocks about 3% of the blue light.

As shown in Tables 2 to 3, the greater the proportion of yellow dye to blue pigment, the higher the anti-blue light rate of the sample. The anti-blue contact lens containing 0.07～0.20 wt% of yellow dye and blue pigment allows the transmittance of light with a wavelength of 380 to 780 nm to be greater than 85%, and the transmittance of light with a wavelength of 380 to 460 nm is less than 70%.

Implementation mode 3:

In Embodiment 3, composition 7 is prepared according to step S920, and a control group (control group 2) is also prepared. The yellow dye contained in the composition 7 accounted for 0.13 wt% of its total weight, and the blue pigment was added in a ratio of 7:1 between the yellow dye and the blue pigment. Control 2 also contained 0.13 wt% of yellow dye, but did not contain blue pigment. Then, according to steps S930 to S950, the composition 7 and the control group 2 were prepared into the blue light-proof contact lens sample 7 and the control group (control group 2), respectively, and their appearance was observed. The results are shown in FIGS. 4A to 4B.

The left side of Figure 4A is a commercially available anti-UV water blue contact lens (control 3), and the right side is an anti-blue light contact lens (sample 7). The left side of Fig. 4B is the contact lens of the control group (control group 2), and the right side is the sample 7. The components of the contact lenses of sample 7 and the control group (control group 2) are as described above. The control group 3 contained anti-ultraviolet components, but did not have the dye component of anti-blue wavelength, so it was bluish, bluish-violet or purple-colored, and did not have a yellowish tint. As shown in FIGS. 4A to 4B, the contact lens of the control group (control group 2) obviously has a yellowish tint, while under the same yellow dye content, the sample 7 is slightly green.

In summary, the embodiments of the present invention not only have the effect of anti-blue light, but in terms of appearance, the anti-blue light contact lens presents a green, blue-green or blue hue, which is close to the natural color of the white of human eyes. The color tone of the anti-blue light contact lens makes it more "invisible" when worn, and also helps to avoid visual fatigue of the wearer, avoid visual chromatic aberration, and help improve the aesthetic effect.

The present invention also provides an anti-blue light contact lens, which contains yellow dye and blue pigment, or contains the aforementioned composition, such as composition 1-7 and/or is prepared from composition 1-7. The yellow dye and blue pigment are as described above. Alternatively, the anti-blue light contact lens is prepared by the aforementioned method. Containing yellow dyes, anti-blue contact lenses can reduce the transmittance of visible light in the blue wavelength range.

In one embodiment, the anti-blue light contact lens makes the transmittance of blue light with a wavelength of 380 to 460 nm less than 75%, and makes the transmittance of light with a wavelength of 380 to 780 nm greater than 85%, thus allowing visible light to pass through. It does not hinder the wearer's vision, and at the same time helps to reduce the amount of high-energy light transmitted to the eyes. Due to the inclusion of blue pigments, the anti-blue light contact lens presents a green, blue-green or blue hue, which is close to the natural color of the whites of human eyes. It is more beautiful and helps enhance the wearer's experience.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field of the present invention can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.

S910: Provide molds, and molds include male and female molds S920: Formulate an anti-blue light contact lens composition, and the composition includes a yellow dye and a blue pigment S930: Inject the composition into the female mold, and then press the male mold and the female mold together S940: Light curing and forming the lens body S950: Hydrate and form contact lenses

FIG. 1 is a flowchart of a method for preparing blue light-proof contact lenses according to an embodiment of the present invention. 2 is a diagram showing the relationship between the light wavelength and the transmittance of the anti-blue light contact lens according to an embodiment of the present invention. Fig. 3 is a diagram showing the relationship between light wavelength and transmittance of a control group of anti-blue contact lenses according to an embodiment of the present invention. 4A to 4B are schematic diagrams of the appearance of a blue light-proof contact lens and a control group according to an embodiment of the present invention.

Claims (17)

An anti-blue light contact lens composition comprising at least one hydrogel monomer, a yellow dye, a blue pigment, a crosslinking agent and a photoinitiator, wherein the content of the yellow dye and the blue pigment accounts for the combination The content of 0.01 wt to 1 wt%. The anti-blue light contact lens composition according to claim 1, wherein the yellow dye comprises a reactive yellow dye, the blue pigment comprises phthalocyanine blue 15, and the content ratio of the yellow dye to the blue pigment is 11:1 ~7:1. The anti-blue light contact lens composition according to claim 1, wherein the at least one hydrogel monomer contains an unsaturated hydrocarbon-based hydrophilic molecule, and is acrylic acid, methacrylic acid, N-vinylpyrrolidone, hydroxyalkyl (methyl) ) Acrylate, dihydroxyalkyl (meth)acrylate, 2-hydroxyethyl methacrylate or a combination thereof, and the content of the at least one hydrogel monomer is 50 wt% to 99 wt%. The anti-blue light contact lens composition according to claim 1, wherein the crosslinking agent is ethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, diethylene glycol dimethacrylate, poly Ethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, pentaerythritol tetramethacrylate, bisphenol A dimethacrylate, vinyl methacrylate or a combination thereof, and the crosslinking agent The content is 0.01 wt% to 2.5 wt%. The anti-blue light contact lens composition according to claim 1, wherein the photoinitiator is bis(2,4,6-trimethylbenzyl)phenylphosphine oxide, benzoin ethyl ether, phenyldimethyl Ketal, α,α-diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenyl-1-propanone or a combination thereof, and the content of the photoinitiator is 0.01 wt% to 2.5 wt%. The anti-blue light contact lens composition according to claim 1, further comprising an ultraviolet light absorber, and the ultraviolet light absorber is 2-[3-(2H-benzotriazol-2-yl)-4-hydroxybenzene Yl]ethyl 2-methacrylate, 2,2',4,4'-tetrahydroxybenzophenone or a combination thereof, and the content of the ultraviolet light absorber is 0.01 wt% to 1.5 wt%. A method for preparing anti-blue light contact lenses, including: Provide a mold, which includes a male mold and a female mold; Prepare an anti-blue light contact lens composition, which contains a yellow dye and a blue pigment; Inject the composition into the female mold, and then press and fit the male mold and the female mold; Carry out light curing and form a lens body; and It hydrates and forms a contact lens. The method for preparing blue light-proof contact lenses according to claim 7, wherein the inner surface of the master mold is pad-printed with a colored pattern. The method for preparing anti-blue light contact lenses according to claim 7, wherein the step of preparing the anti-blue light contact lens composition further comprises mixing at least one hydrogel monomer, the yellow dye, the blue pigment, and a crosslinking agent And a photoinitiator. The method for preparing anti-blue light contact lenses according to claim 9, wherein the step of preparing the anti-blue light contact lens composition further comprises mixing the at least one hydrogel monomer, the yellow dye, the blue pigment, and the crosslinking Agent, the photoinitiator and an ultraviolet light absorber. The method for preparing blue light-resistant contact lenses according to claim 7, wherein the step of photocuring and forming the lens body further comprises irradiating the composition in the master mold with ultraviolet light to cause the composition to undergo photopolymerization And form the lens body. The method for preparing blue light-proof contact lenses according to claim 7, further comprising removing the male mold and leaving the lens body in the female mold to perform hydration and form the contact lens. The method for preparing blue light-resistant contact lenses according to claim 7, wherein the step of hydrating and forming the contact lens further comprises hydrating at a temperature of 40-100° C. to form the contact lens. The method for preparing blue light-proof contact lenses according to claim 7, further comprising sterilizing the contact lenses. The method for preparing a blue light-proof contact lens according to claim 14, wherein the step of sterilizing comprises immersing the contact lens in a buffer solution and sterilizing it at a high temperature. An anti-blue light contact lens, comprising the composition described in any one of claims 1 to 6, and having a transmittance of less than 75% for light with a wavelength of 380 to 460 nm, and having a transmittance of less than 75% for light with a wavelength of 380 to 780 nm The penetration rate is greater than 85%. The anti-blue light contact lens described in claim 16 has a green, blue-green or blue hue.

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