WO2017150786A1 - 청광차단 소프트 콘택트렌즈의 제조방법 및 이를 이용하여 제조된 소프트 콘택트렌즈 - Google Patents
청광차단 소프트 콘택트렌즈의 제조방법 및 이를 이용하여 제조된 소프트 콘택트렌즈 Download PDFInfo
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- WO2017150786A1 WO2017150786A1 PCT/KR2016/012189 KR2016012189W WO2017150786A1 WO 2017150786 A1 WO2017150786 A1 WO 2017150786A1 KR 2016012189 W KR2016012189 W KR 2016012189W WO 2017150786 A1 WO2017150786 A1 WO 2017150786A1
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- WIPO (PCT)
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- contact lens
- blue light
- soft contact
- light blocking
- composition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00038—Production of contact lenses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00038—Production of contact lenses
- B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
- G02B1/043—Contact lenses
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00634—Production of filters
Definitions
- the present invention relates to providing a method for manufacturing a blue light blocking soft contact lens, and in addition to the UV blocking function that is commonly used, a soft contact lens that can block blue light that can cause glare, fatigue and eye diseases. It is an object to provide a manufacturing method.
- light is composed of ultraviolet rays, visible rays, and infrared rays.
- Visible rays correspond to a range of 380 nm to 780 nm, and shorter wavelengths are ultraviolet rays, and longer wavelengths are composed of infrared rays.
- Rays of relatively long wavelengths such as red light, yellow light, green light among infrared rays or visible light are not particularly harmful, but UV rays with short wavelengths are harmful to the human body such as skin or eyes.
- the harmfulness and blocking method of blue light corresponding to the short wavelength region of visible light in the visible light and the commercialized light are gradually known and commercialized.
- Such blue light is generally referred to as a 380 nm to 500 nm region in the wavelength range, and has a characteristic of large scattering and refractive characteristics because of its short wavelength. Because blue light is scattering, it causes the quality of the image on the retina, and because of the large refractive index, the image is formed in front of the retina, causing chromatic aberration, causing eye fatigue and glare, and the shorter the wavelength, the higher the energy. There is a problem that causes adverse effects on the cell. However, the natural light encountered in our daily life does not feel a big problem because the ratio of blue light in the light beam is not so large, but display screens such as smart phones, tablets, computers, and TVs, which are recently encountered due to the development of the IT industry. Since the ratio of blue light is much higher than that of sunlight or fluorescent light in light sources such as CCFLs and LEDs used to express brightly, the eyesight, glare, fatigue, headache, etc. are increasing.
- UV blocking glasses lenses, blue blocking glasses lenses, or blue screening protective films for display screens are commercially available, but contact lenses are widely applied to UV blocking functions. It is still inadequate.
- the coloring agent may be added to the monomer composition capable of manufacturing the contact lens to exert the blue light blocking effect, but the decrease in the visibility may occur due to the decrease in the overall transmittance not only in the wavelength of the blue light region but also in the visible light wavelength region.
- a general colorant is a type that is simply dispersed in the monomer composition, and no chemical bond is induced, which may cause a problem of escaping from the contact lens over time.
- the photochromic dye may be used to realize ultraviolet and blue light blocking effects. Examples of the photochromic dye include a spiropyran compound, a spiroxazine compound, a thioindigo compound, and a triarylmethane compound.
- the molecular structure When exposed to ultraviolet rays, the molecular structure changes color and is usually transparent. However, when exposed to ultraviolet rays, gray or brown-based dark colors may appear to block ultraviolet rays and blue light, but visible light transmittance decreases. The problem of inferior visibility may occur, and the photochromic property is degraded in the room, and the efficiency of blue light blocking is inferior.
- the present invention provides a method for manufacturing a blue light blocking soft contact lens, by adding a specific compound capable of absorbing blue light to the monomer composition for producing a soft contact lens contact lens It is an object of the present invention to provide a method capable of manufacturing a blue light blocking soft contact lens that can reduce the transmittance of blue light passing through the anti-glare and anticipate an effect of preventing glare, fatigue and eye diseases.
- the present invention is characterized in that the light-blocking soft contact lens is prepared by adding a specific compound having the following structural formula to a generally known soft contact lens composition.
- the structure of the specific compound in the present invention is as follows,
- Chemical formula 1 is 4-[(di) -phenyldiazenyl] phenyl-2-methacrylate (4-[(E) -phenyldiazenyl] phenyl-2-methacrylate), and chemical formula 2 is 2- ⁇ 4. -[(Di) -phenyldiazenyl] phenoxy ⁇ ethyl-2-acrylate (2- ⁇ 4-[(E) -phenyldiazenyl] phenoxy ⁇ ethyl-2-acrylate).
- Blending a contact lens composition comprising a hydrophilic acrylate monomer, a crosslinking agent, and an initiator;
- the present invention also provides a blue light blocking soft contact lens manufactured by the above method.
- the manufacturing method of the present invention blocks blue light (blue light having a wavelength in the range of 380 nm to 500 nm) that can cause glare, fatigue, eye disease, and the like, and is also harmful to the skin and human body. Since it is possible to block the light transmittance of visible rays other than light in the wavelength region corresponding to blue light, it is possible to manufacture a blue light blocking soft contact lens that is clear and does not interfere with the field of view.
- Example 2 is a spectral distribution curve of the blue light blocking soft contact lens obtained in Example 1,
- Example 3 is a spectral distribution curve of the blue light blocking soft contact lens obtained in Example 2,
- the present invention is characterized in that the light-blocking soft contact lens is prepared by adding a specific compound having the following structural formula to a generally known soft contact lens composition.
- the structure of the specific compound in the present invention is as follows,
- Chemical formula 1 is 4-[(di) -phenyldiazenyl] phenyl-2-methacrylate (4-[(E) -phenyldiazenyl] phenyl-2-methacrylate), and chemical formula 2 is 2- ⁇ 4. -[(Di) -phenyldiazenyl] phenoxy ⁇ ethyl-2-acrylate (2- ⁇ 4-[(E) -phenyldiazenyl] phenoxy ⁇ ethyl-2-acrylate).
- Blending a contact lens composition comprising a hydrophilic acrylate monomer, a crosslinking agent, and an initiator;
- the present invention also provides a blue light blocking soft contact lens manufactured by the above method.
- Blending a contact lens composition comprising a hydrophilic acrylate monomer, a crosslinking agent, and an initiator;
- the hydrophilic acrylate monomers may be used by mixing one or more of hydrophilic monomers such as 2-hydroxyethyl methacrylate, N-vinylpyrrolidone, N, N-dimethylacrylamide, methacrylic acid and the like.
- the crosslinking agent may include at least one of monomers having a bifunctional or higher carbon double bond, such as ethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, aryl methacrylate, divinylbenzene, and the like. It can be mixed and used, It is preferable to use the content of 0.5 to 2 weight% in the whole composition.
- crosslinking may be insufficient, resulting in a decrease in physical stiffness and elasticity of the contact lens, and in excess of 2 wt%, water content may be degraded when the contact lens is wet.
- the initiator may be a peroxide such as benzoyl peroxide, cumyl peroxide, butyl peroxide, butyl peroxybenzoate, or the like, or 2,2'-azobis (2,4-dimethylpentanenitrile), 2,2'-azobis ( 2-methylpropanenitrile), 2,2'-azobisisobutyronitrile, 2,2'- azobisvaleronitrile and the like can be selected from nitrile compounds, the content of which is 0.05 to 0.3 weight in the total composition Preference is given to using%.
- a peroxide such as benzoyl peroxide, cumyl peroxide, butyl peroxide, butyl peroxybenzoate, or the like
- 2,2'-azobis (2,4-dimethylpentanenitrile), 2,2'-azobis ( 2-methylpropanenitrile), 2,2'-azobisisobutyronitrile, 2,2'- azobisvaleronitrile and the like
- the problem that the contact lens is unpolymerized may occur, and if it exceeds 0.3% by weight, the elasticity of the contact lens may be deteriorated and cracks are likely to occur when the contact lens is separated from the mold.
- Chemical formula 1 is 4-[(di) -phenyldiazenyl] phenyl-2-methacrylate (4-[(E) -phenyldiazenyl] phenyl-2-methacrylate), and chemical formula 2 is 2- ⁇ 4. -[(Di) -phenyldiazenyl] phenoxy ⁇ ethyl-2-acrylate (2- ⁇ 4-[(E) -phenyldiazenyl] phenoxy ⁇ ethyl-2-acrylate).
- the content of the specific compound is preferably used 0.2 to 3% by weight in the total composition.
- the acrylate composition for forming the blue light blocking soft contact lens formed through the above steps is injected into a separately manufactured mold.
- the material of the mold is not particularly limited, but a polypropylene mold is preferred in view of ease of separation of the molded contact lens.
- the mold into which the composition is injected is subjected to heat treatment at a temperature of 60 to 120 ° C. for 4 to 12 hours so that the composition in the mold is crosslinked and formed into a contact lens. Thereafter, the contact lens formed by the above process is separated from the mold and immersed in a separate wetting liquid to perform swelling and water treatment.
- the wet liquid can be used by preparing 0.9 wt% of sodium chloride saline or prepared separately.
- the wet treatment is performed by immersing at room temperature for 1 to 2 hours, and then performing a heat treatment at a temperature of 60 to 80 ° C. for 2 to 4 hours, and the unreacted monomer remaining in the contact lens during the heat treatment is contact lens. It is usually called a disinfection step because it escapes from the wetting liquid. Then, the lens treated in the above process is packaged in a container made of plastic or glass filled with 0.9% by weight of sodium chloride saline, and then saturated steam having a pressure of at least 1 atm.
- High pressure steam sterilization process to remove microorganisms is completed to manufacture the contact lens.
- the manufactured contact lens was able to obtain a spectral distribution curve graph by measuring the transmittance in the ultraviolet and visible region using a MECASYS UV-VIS spectrophotometer (OPTIZEN 2120UV). The blue light blocking ratio of the contact lens was obtained.
- FIG. 1 and the spectral distribution curve, the soft contact lens obtained from the Comparative Example 1, the specific compound of the present invention is not added.
- a rectangular area corresponding to a region of 380 to 500 nm in the wavelength region of the X-axis and 0 to 100% in the transmittance region of the Y-axis is 100% incident blue light. From the perspective, it can be seen that the area of the lower part of the spectral distribution curve corresponds to the blue light transmittance and can be expressed quantitatively as follows.
- T BL is the transmittance of blue light
- ⁇ ( ⁇ ) is the spectral distribution
- S ( ⁇ ) is the spectral distribution of incident light
- the blue light blocking rate can be expressed as [100-blue light transmittance], which is quantitatively expressed as follows.
- R BL is cheonggwang blocking rate (blocking Ratio of Blue Light).
- Chemical formula 2 is 2- ⁇ 4-[(di) -phenyldiazenyl] phenoxy ⁇ ethyl-2-acrylate (2- ⁇ 4-[(E) -phenyldiazenyl] phenoxy ⁇ ethyl-2-acrylate)
- Example 2 a contact lens was manufactured in the same manner as in Example 1, and the transmittance in the ultraviolet and visible region was measured for the blue-blocked soft contact lens thus manufactured, and the spectral distribution curve graph as shown in FIG. The light blocking rate was about 40%.
- Example 1 In preparing the composition for a contact lens in Example 1, except that the specific compound of the present invention is not added, the manufacturing of the contact lens in the same manner as in Example 1, and thus the contact is completed The transmittance in the ultraviolet and visible light region of the lens was measured to obtain a spectral distribution curve graph as shown in FIG. 1, and the blue light blocking ratio was about 5%.
- the contact lens manufactured according to the present invention has excellent blue light blocking function, and can also block ultraviolet rays, and does not reduce the transmittance of visible light other than the light in the wavelength region corresponding to blue light, so that it is clear and does not interfere with the field of view. It can be seen that it is possible to manufacture blue light blocking soft contact lenses.
- the manufacturing method of the present invention blocks blue light (blue light having a wavelength in the range of 380 nm to 500 nm) that can cause glare, fatigue, eye disease, and the like, and is also harmful to the skin and human body. Since it is possible to block the light transmittance of visible rays other than light in the wavelength region corresponding to blue light, it is possible to manufacture a blue light blocking soft contact lens that is clear and does not interfere with the field of view.
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Eyeglasses (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims (5)
- 제1항에 있어서,상기 친수성 아크릴레이트 단량체는 2-하이드록시에틸메타크릴레이트, N-비닐피롤리돈, N,N-디메틸아크릴아마이드, 메타크릴산 등을 들 수 있으며, 1종 이상을 혼합하여 사용하는 것을 특징으로 하는 청광차단 소프트 콘택트렌즈의 제조방법 및 이를 이용하여 제조된 콘택트렌즈.
- 제1항에 있어서,화학구조식1의 특정 화합물은, 4-[(이)-페닐디아제닐]페닐-2-메타크릴레이트(4-[(E)-phenyldiazenyl]phenyl-2-methacrylate)이고, 화학구조식2의 특정 화합물은, 2-{4-[(이)-페닐디아제닐]페녹시}에틸-2-아크릴레이트(2-{4-[(E)-phenyldiazenyl]phenoxy}ethyl-2-acrylate)이고, 상기 특정 화합물의 함량은 전체 조성물 중에서 0.2 내지 3중량%를 사용하는 것을 특징으로 하는 청광차단 소프트 콘택트렌즈의 제조방법 및 이를 이용하여 제조된 콘택트렌즈.
- 제1항에 있어서,상기 가교제는 에틸렌글리콜디메타크릴레이트, 테트라에틸렌글리콜디메타크릴레이트, 트리메틸올프로판트리메타크릴레이트, 아릴메타크릴레이트, 디비닐벤젠 등과 같이 2관능 이상의 탄소이중결합을 갖는 단량체 중에서 1종 이상을 혼합하여 사용하고, 그 함량은 전체 조성물 중에서 0.5 내지 2중량%를 사용하는 것을 특징으로 하는 청광차단 소프트 콘택트렌즈의 제조방법 및 이를 이용하여 제조된 콘택트렌즈.
- 제1항에 있어서,상기 개시제는 벤조일페록사이드, 큐밀페록사이드, 부틸페록사이드, 부틸페록시벤조에이트 등과 같은 과산화물, 또는 2,2'-아조비스(2,4-디메틸펜탄니트릴), 2,2'-아조비스(2-메틸프로판니트릴), 2,2'-아조비스이소뷰티로니트릴, 2,2'-아조비스발레로니트릴 등과 같은 니트릴화합물 중에서 선택하여 사용할 수 있으며, 그 함량은 전체 조성물 중에서 0.05 내지 0.3중량%를 사용하는 것을 특징으로 하는 청광차단 소프트 콘택트렌즈의 제조방법 및 이를 이용하여 제조된 콘택트렌즈.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018545883A JP2019510265A (ja) | 2016-03-03 | 2016-10-27 | 青色光遮断ソフトコンタクトレンズの製造方法及びこれを用いて製造されたソフトコンタクトレンズ |
BR112018067495-8A BR112018067495B1 (pt) | 2016-03-03 | 2016-10-27 | Método para fabricar lente de contato macia que bloqueia luz azul, e lente de contato macia fabricada usando-se o mesmo |
CN201680005425.9A CN110049860A (zh) | 2016-03-03 | 2016-10-27 | 一种阻断蓝光的软性隐形眼镜及其制备方法 |
EP16892799.4A EP3424688B1 (en) | 2016-03-03 | 2016-10-27 | Method for manufacturing blue light-blocking soft contact lens, and soft contact lens manufactured by using same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2016-0025940 | 2016-03-03 | ||
KR1020160025940A KR101786302B1 (ko) | 2016-03-03 | 2016-03-03 | 청광차단 소프트 콘택트렌즈의 제조방법 및 이를 이용하여 제조된 소프트 콘택트렌즈 |
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WO2017150786A1 true WO2017150786A1 (ko) | 2017-09-08 |
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PCT/KR2016/012189 WO2017150786A1 (ko) | 2016-03-03 | 2016-10-27 | 청광차단 소프트 콘택트렌즈의 제조방법 및 이를 이용하여 제조된 소프트 콘택트렌즈 |
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EP (1) | EP3424688B1 (ko) |
JP (1) | JP2019510265A (ko) |
KR (1) | KR101786302B1 (ko) |
CN (1) | CN110049860A (ko) |
BR (1) | BR112018067495B1 (ko) |
WO (1) | WO2017150786A1 (ko) |
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FR3086660A1 (fr) | 2018-10-02 | 2020-04-03 | Ophtalmic Compagnie | Compositions d'hydrogels |
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KR102008138B1 (ko) * | 2018-04-16 | 2019-08-07 | 주식회사 인터로조 | 블루라이트 차단 콘택트렌즈 및 제조방법 |
KR102199118B1 (ko) | 2019-06-10 | 2021-01-06 | (주)지오메디칼 | 청색광 차단 조성물 및 이를 이용한 청색광 차단 콘텍트렌즈 및 그 제조방법 |
KR102079998B1 (ko) * | 2019-07-09 | 2020-02-21 | 주식회사 인터로조 | 블루라이트 차단 콘택트렌즈 및 이의 제조 방법 |
TWI779275B (zh) * | 2020-03-31 | 2022-10-01 | 望隼科技股份有限公司 | 防藍光隱形眼鏡、其組合物及製備方法 |
KR102279488B1 (ko) | 2020-08-20 | 2021-07-20 | 주식회사 한국시과학연구소 | 타트라진 색소를 이용한 청색광차단 콘택트렌즈 및 그 제조방법 |
KR20220096526A (ko) | 2020-12-31 | 2022-07-07 | (주)메디오스 | 색파장 콘텍트 렌즈 제조 방법 |
KR102499628B1 (ko) * | 2021-02-18 | 2023-02-14 | 주식회사 윈스 | 청색광 차단 기능을 갖는 콘택트렌즈와 이의 제조방법 |
KR102654801B1 (ko) | 2021-12-30 | 2024-04-05 | 이철우 | 청색광 차단 하이드로겔 콘택트렌즈 조성물 및 이를 포함하는 하이드로겔 콘택트렌즈 |
WO2024077508A1 (zh) * | 2022-10-12 | 2024-04-18 | 晶硕光学股份有限公司 | 阻隔蓝光的隐形眼镜及其制备方法 |
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WO2020070423A1 (fr) | 2018-10-02 | 2020-04-09 | Ophtalmic Compagnie | Compositions d'hydrogels |
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CN110049860A (zh) | 2019-07-23 |
BR112018067495A2 (pt) | 2019-02-26 |
EP3424688B1 (en) | 2020-11-18 |
EP3424688A1 (en) | 2019-01-09 |
EP3424688A4 (en) | 2019-10-09 |
JP2019510265A (ja) | 2019-04-11 |
KR101786302B1 (ko) | 2017-10-17 |
KR20170103316A (ko) | 2017-09-13 |
BR112018067495B1 (pt) | 2022-03-08 |
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