WO2013125470A1 - Lentille de contact colorée - Google Patents

Lentille de contact colorée Download PDF

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Publication number
WO2013125470A1
WO2013125470A1 PCT/JP2013/053773 JP2013053773W WO2013125470A1 WO 2013125470 A1 WO2013125470 A1 WO 2013125470A1 JP 2013053773 W JP2013053773 W JP 2013053773W WO 2013125470 A1 WO2013125470 A1 WO 2013125470A1
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Prior art keywords
colored
lens
contact lens
mold
region
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PCT/JP2013/053773
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English (en)
Japanese (ja)
Inventor
知章 横田
Original Assignee
株式会社メニコンネクト
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Application filed by 株式会社メニコンネクト filed Critical 株式会社メニコンネクト
Priority to CN201380004726.6A priority Critical patent/CN104246580B/zh
Priority to KR1020147017799A priority patent/KR101612743B1/ko
Priority to JP2013511473A priority patent/JP5369273B1/ja
Publication of WO2013125470A1 publication Critical patent/WO2013125470A1/fr

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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
    • G02C7/046—Contact lenses having an iris pattern

Definitions

  • the present invention relates to a colored contact lens having a colored pattern that gives a very natural appearance and can change the appearance of the wearer's pupil.
  • Colored contact lenses are for the purpose of enjoying fashion rather than for eyesight correction, and are mainly sold as soft contact lenses (some patients have abnormalities in the appearance of the iris or cornea of their eyes). Is used as an artificial eye for the purpose of beauty, which is also sold as a hard system).
  • Contact lens coloring methods can be broadly divided into a method of uniformly coloring a lens using a dye and a method of printing a pattern partially on the surface or inside of a transparent (including a lightly colored lens) lens.
  • the latter method is mainly employed for colored contact lenses that change the appearance of the wearer's pupil.
  • a colored contact lens is formed when the lens forming mold surface is coated with a colored monomer component on the surface forming the iris portion and then formed into a film, and then charged and polymerized with the lens monomer component and taken out of the mold.
  • a contact lens Patent Document 2 in which a colored portion is embedded in a lens material.
  • Patent Document 3 At least two different designs are provided on the mold surface, and transferred to the surface of the lens that contacts the mold surface during molding and curing of the contact lens (Patent Document 3). Having a pattern in contact with the boundary area (Patent Document 4), two sub-patterns having different shadow ratios, and a subjective sub-pattern having a pattern composed of a series of radial intermittent lines (Patent Document) 5) Having an iris section composed of three parts, and by appropriately setting the range of each section, a region that overlaps at a plurality of locations is generated, and a very natural appearance (Patent Document 6), cornea An edge ring and a fibrous dot pattern that emphasizes the sharpness of the user's iris (Patent Document 7), and the colored region is circular, elliptical, Square, consists of a combination having a shape such as a linear, one having a color that changes gradually in a radial direction (P
  • the natural iris structure does not have a single color even in dark colors like Japanese people, but includes many colors and patterns of different shapes. Naturally, it is natural that the user prefers to exhibit this natural appearance, and thus the various designs have been devised. Considering the design in terms of shape, it is basically a plane with a certain extent (such as covering the user's iris area), a continuous or intermittent line, a shape such as a circle, an ellipse, or a triangle.
  • dots There are roughly three types of dots (dots) having Although the planar design is excellent in terms of the function of changing the appearance of the wearer's pupil, it is not necessarily preferable because it has a high risk of impeding the so-called oxygen permeability of the lens material, and the line or dot is not a dark pupil. It is difficult in terms of changing the apparent color.
  • An object of the present invention is to propose a design that can objectively change the color and texture of a wearer's pupil while giving a natural appearance to the contact lens wearer's pupil.
  • An object of the present invention is to provide a colored contact lens in which an increase in manufacturing cost is suppressed without adversely affecting various physical properties.
  • the present invention is a colored contact lens having a transparent central visual region and a colored region surrounding the central visual region, and the colored region basically includes a continuous transparent portion of the sea portion and a discontinuous coloring of the island portion.
  • a sea-island structure including an opaque portion is formed, and the colored opaque portion has a scale-like shape, and has a size of 70 to 600 ⁇ m in the radial direction of the lens and 40 to 300 ⁇ m in the circumferential direction of the lens. .
  • the colored opaque part makes the lens wearer's original pupil color and pattern appear to have changed when viewed from the observer. Furthermore, if each scale pattern is arranged wider than the original pupil of the lens wearer, there is an effect of making the iris part more conspicuous and making the pupil larger. For example, when a wearer with an outer diameter of 12 mm wears a colored contact lens with an outer diameter of a colored opaque portion of 13 mm, not only the pupil looks large but also a beautiful face with a sharp eye may appear.
  • the colored region of the present invention has a sea-island structure even when the lens size at the time of manufacture and at the time of use swells and becomes larger due to moisture. Since it has, there is no fear of deformation accompanying swelling.
  • the lens size is greatly different between the time of manufacture and the time of use (including water).
  • the colored opaque portion contains a component that does not contain water, the moisture content of the transparent portion and the opaque portion does not always match, and the influence may be deformed. At this time, even if the average moisture content is matched, the moisture content may be partially different between the dark portion and the light portion. In the present invention, the design can cope with such a situation.
  • the scale-like shapes of the colored opaque portions are arranged toward the center of the lens and have a larger curvature in the center direction of the lens than in the outer periphery direction of the lens.
  • the scale has a shape such that each corner of the isosceles triangle is rounded and each side is appropriately curved, and the base side is arranged in the outer peripheral direction of the lens.
  • the bend formed at the isosceles portion (hereinafter also referred to as “front end side”) is directed toward the center of the lens and is larger than the bend formed at the base side (including a straight line shape; hereinafter also referred to as “rear end side”).
  • the colored region may form a complete sea-island structure, but the colored opaque portion of the island portion may be partially connected. More specifically, a plurality of scaly island portions in an annular range having a width of 1 to 3.5 mm, more preferably in an annular range of 1.5 to 3.0 mm, from the periphery of the colored region toward the lens center. However, they may be connected to each other in the center direction of the lens and the outer peripheral direction of the lens. This is because it is possible to arrange more colored opaque portions, appropriately shield the sclera portion behind the lens, change the color and pattern of the pupil depending on the colored region, and make the pupil appear larger. In addition, the same effect can be acquired even if it does not connect an island part by enlarging the size of the colored opaque part of an island part.
  • the colored opaque portion is designed so that the size thereof becomes smaller or the number thereof becomes smaller as going toward the center of the lens.
  • the size and number of the colored opaque portions can be changed independently of each other, and it is not necessary to color the lens so that the center side of the lens is smaller in size or the number is smaller than the outer peripheral side. It can be understood as a design trend and can be adjusted as appropriate. As a result, the iris can be expressed as a more natural appearance on the curved surface of the contact lens.
  • a conventional dot pattern has been proposed to have a density gradient that reduces the number (see, for example, Patent Document 7), but no proposal has been found to reduce the size of the dot itself.
  • the natural iris is a thin membrane between the cornea and the crystalline lens
  • the central visual area has a diameter of 7 to 11 mm. This is to prevent the field of view from being obstructed by the opaque portion.
  • the outer diameter of the annular colored region is 11 to 14 mm, preferably 12 to 13.8 mm, more preferably 12.5 to 13.5 mm. Since the colored opaque portion only needs to cover the iris or a region slightly wider than the iris, it may have a transparent portion on the outside thereof.
  • the soft contact lens has a size ranging from the cornea to the sclera, and does not have to create a coloring area that is wider than necessary, and if the pupil is too large, the appearance is not preferable. .
  • the colored contact lens of the present invention has a colored opaque portion formed in a scale shape, unlike a conventional flat, line, or dot design, even if it is a dark-colored pupil, the original A sense different from color can be effectively given. Moreover, since the way it looks is very close to a natural pupil, there is no sense of incongruity. Further, if the scale shape is arranged larger than the diameter of the pupil, the pupil can be made larger.
  • FIG. 1 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 2 is a diagram showing an example of a method for producing a colored contact lens of the present invention.
  • FIG. 3 is a diagram showing the design as dots as Comparative Example 1.
  • FIG. 4 is a diagram showing the design as a curve as Comparative Example 2.
  • FIG. 5 is a diagram showing the design as a comparative example 3 with a combination of lines having different thicknesses.
  • FIG. 6 is a diagram showing the design as a ring as Comparative Example 4.
  • FIG. 7 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 8 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 1 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 2 is a diagram showing an example of a method for producing a colored contact lens of the present invention.
  • FIG. 3 is
  • FIG. 9 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 10 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 11 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 12 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 13 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 14 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 15 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • FIG. 16 is a diagram showing an example of the design of the colored contact lens of the present invention.
  • the colored contact lens of the present invention can make a person with a dark pupil feel a change in appearance due to a colored opaque portion having a specific shape, and is reflected in a natural pupil. It has the feature that it is difficult for a third party to see this.
  • description will be given with reference to the accompanying drawings.
  • the colored contact lens of the present invention includes a lens called a “color control” for enjoying fashion and a lens for correcting vision.
  • the material of such a lens may be any of a water-containing soft contact lens containing water, a silicone hydrogel soft contact lens, a non-water-containing soft contact lens, and an oxygen-permeable hard contact lens.
  • the specific shape design of the present invention can be applied to any type of lens material described above, and is more suitable for hydrous soft contact lenses that are the mainstream in the colored contact lens market in recent years.
  • Each lens material is a polymer of a known monomer.
  • Polymers such as acrylamide, glycerol (meth) acrylate, glycidyl (meth) acrylate, vinyl pyrrolidone, (meth) acrylic acid, etc.
  • non-hydrous soft contact lens materials are polymers with a low glass transition point.
  • Such monomers include polymers such as n-butyl (meth) acrylate, decyl (meth) acrylate, and lauryl (meth) acrylate, which are used as materials for silicone hydrogel soft contact lenses and oxygen-permeable hard contact lenses. Include the polymers of monomers such as the above water-containing soft contact lenses monomers and silicone-containing macromer such as silicone-containing alkyl (meth) acrylate.
  • the constituent monomer of the contact lens is not particularly limited.
  • blend a monomer component other than a coloring component it is preferable to selectively use a monomer having a high affinity with the constituent monomer component of the contact lens to which the coloring is applied, for example, the same monomer as the constituent monomer. More specifically, if a high molecular weight polymer having hydroxyethyl methacrylate as a main component is selected as the material for the colored contact lens, it is desirable to add hydroxyethyl methacrylate as the material for forming the colored opaque portion. It is.
  • the coloring component with respect to the contact lens main body is more firmly bonded, and it is possible to effectively prevent elution of the coloring agent and the like and to prevent deformation of the lens after molding.
  • the coloring component in the case of a hydrous soft contact lens, since it contains water and swells, depending on the manufacturing method, if there is a large gap in the swelling rate between the colored opaque portion and the contact lens body, it may be a factor of deformation.
  • the colored pattern as in the present invention is highly effective in avoiding the deformation factor because the colored opaque portions are separated from each other, and is suitable for coloring the hydrous soft contact lens.
  • the colored contact lens of the present invention has a transparent central visual region and a colored region surrounding it, like the existing color contact lens.
  • a colored region is formed so as to color a portion that does not enter the field of view of the wearer and mask the iris color.
  • the conventional colored region is composed of a plane, a line, a dot, or a combination thereof.
  • the colored region basically forms a sea-island structure composed of a continuous transparent portion of the sea portion and a discontinuous colored opaque portion of the island portion, and enters the classification of coloring by the dots.
  • the biggest problem in forming an iris region with dots is that the masking effect is low compared to other classifications, but the present invention overcomes this problem by having a specific design and shape, It created an appearance that looked more natural than known color contact lenses.
  • the “continuous transparent portion of the sea portion” occupies 20% to 70% of the colored region, preferably 45% to 65%, and most preferably 50% to 60%. Therefore, the remaining part becomes “discontinuous colored opaque part of the island part”, but this sea-island structure is, for example, a state in which the island parts are partly connected or a part of the island parts are connected, and a transparent lake between them. It does not completely exclude the existence of a part (or river part). Basically, it is preferable that each colored opaque portion is an independent island, but in a region where the density of the island portion is high, they may contact or partially overlap each other.
  • FIG. 1 and FIG. Examples of contact with the colored opaque parts are shown in FIG. 1 and FIG.
  • a plurality of scale-like colored opaque objects are formed within the annular range of 1 to 3.5 mm in width, preferably 1.5 to 3.0 mm in width from the periphery of the colored region toward the center of the lens.
  • the parts are connected to each other on the front end side and the rear end side, and are connected in a rosary manner.
  • Such connected scale-like island portions are composed of 3 to 20, preferably 10 or less. This is because it is necessary for making the pupil appear larger at the peripheral portion of the colored region, and the colored opaque portion becomes rougher toward the center, so that it is more natural to be independent as an island portion.
  • the design is arranged in series, as shown in FIG. 16, or between the adjacent scales in the front row as shown in FIG. It can arrange
  • these are merely examples of arrangement and are not limited.
  • Various arrangements such as changing the positional relationship between the front row and the rear row at random, or placing in contact with at least one of the other opaque portions existing in the front, rear, left and right can be selected as appropriate.
  • Transparent part means a visible light (380 nm to 750 nm) transmittance of 80% to 100%, which is colorless or colored and transparent.
  • the transmittance of the “opaque part” is 0% to 50%, and the target of changing the iris color (for example, Japanese, Westerners, men and women) and the color of the iris to be expressed (for example, green, blue) Is appropriately adjusted.
  • the transmittance of the colored opaque portion it is preferable to set to approximately 0 to 30% so that the iris color to be expressed becomes clearer.
  • the size of the colored opaque portion of the present invention is 70 to 600 ⁇ m in the radial direction, preferably 100 to 400 ⁇ m, and 40 to 300 ⁇ m in the circumferential direction, preferably 70 to 250 ⁇ m.
  • the shape is such that each corner of the isosceles triangle is rounded and each side is appropriately curved. Then, an arc having a large curvature (tip side) formed by the isosceles part toward the center of the lens is formed, and an arc (rear end side) having a smaller curvature formed by the base part toward the outer periphery of the lens. .
  • the arc (3) on the rear end side has a gentle curve.
  • the curvature of the arc (3) (the reciprocal of the radius of curvature) is within 3 times, preferably within 2 times, more preferably 0.3 to 1.5 times the reciprocal of the distance between the arc and the center of the lens. And most preferably 0.5 to 1.2 times.
  • the boundary line is likely to be clear, and when a pattern similar to a dot is employed as in the present invention, the boundary is likely to be unclear. Therefore, by forming in such an arc shape, even if each colored opaque part is not connected, the effect of making the boundary region clear can be emphasized.
  • the colored opaque portion located at the outermost periphery forms an outer contour (a line representing the outer edge) of the pupil.
  • the shape of the rear end side of this colored opaque portion is not essential, but if it is an arc shape as described above, the effect of enhancing the contour is further enhanced, so that the pupil can be seen larger, The texture of the iris can be improved as much as or more than the expressed iris.
  • the shape (33) may be used so as to wrap the tip side of the colored opaque portion present in the rear row. This is because the shape of the rear end side of the colored opaque portion that is not located on the outermost periphery does not form part of the contour of the iris. In addition, it does not necessarily exclude that the colored opaque part of the said shape is located in the outermost periphery. This is because the outline of the iris pattern can be sufficiently formed depending on the size and arrangement of the colored opaque portions.
  • the arc (5) on the tip side of the colored opaque portion (2) depicts a curve having a curvature (small curvature radius) larger than the curvature of the arc (3) on the rear end side.
  • the lens is a spherical surface, and it is appropriate to make the figure drawn there more three-dimensional.
  • the shape is not limited to a curve as shown in the figure, and may be a shape in which several points on an arc are connected by straight lines (see FIG. 10). Further, sub-patterns having different hues (for example, radial intermittent line patterns, etc.) may be overlapped by a known method other than the outermost periphery.
  • the meaning of the “curvature” of “the scale of the lens having a larger curvature than the outer peripheral direction of the lens” according to the present invention may be regarded as drawing a curve macroscopically. But it doesn't have to be a curve throughout. This means that a combination of “plurality of curves” and / or “plurality of straight lines” includes what represents a curve as a whole.
  • the colored opaque portion having the above-described shape gradually decreases toward the center of the lens. Since the tip side is designed with a larger curvature than the rear end side, it can be expressed to attract people's attention to the pupil from the periphery, but the effect is further amplified by gradually decreasing the size. (See, for example, FIG. 1 and FIG. 7). In addition, since the area is naturally reduced toward the center of the lens, and more small colored opaque portions can be arranged, there is an effect that the texture of the iris can be easily changed. And since it eventually continues to the central visual area, there is a risk of damaging the natural appearance if there is a very clear change in the transition part. It is desirable that the visual area is connected.
  • the number of colored opaque portions may be gradually decreased toward the center of the lens.
  • the size of each colored opaque portion is the same, it is necessary to cope with the area becoming smaller toward the center of the lens (see, for example, FIG. 8).
  • this reduction technique is a conventionally known design, and has been naturally adopted in the dot pattern coloring method.
  • a transparent visual center lens region (7) is formed at the center of the colored contact lens (1) of the present invention illustrated in FIG.
  • the visible light transmittance of the central visual region is equal to or greater than that of the transparent portion (9) of the colored region (8) and allows light to enter the pupil.
  • the size is 7 to 11 mm in diameter, The thickness is preferably 7 to 10 mm. This is to ensure a sufficient field of view.
  • the colored region (8) surrounding the central visual region (7) is formed in an annular shape with a radial width in the range of 1.0 to 3.5 mm, preferably in the range of 1.5 to 3.0 mm. Yes. In order to make the pupil appear larger, the colored region is formed so as to expand further in the lens outer peripheral direction.
  • a transparent peripheral region (10) may be provided so as to surround the colored region (8). It is appropriately formed in relation to the lens size.
  • the visible light transmittance of the transparent peripheral region is equivalent to that of the central visual region, and is colorless or colored and transparent.
  • the colored contact lens of the present invention illustrated in FIG. 11 is an example in which the colored region (28) has a narrow width and the number of colored opaque portions is rapidly decreased toward the central visual region (27). This design is expressed so that the ring stands out, and has the effect of making the pupil look larger while still using the wearer's iris pattern.
  • FIG. 12 shows an example in which the colored regions (37) are shown to form a double ring, and colored opaque portions are dispersed therebetween.
  • the number of colored opaque portions gradually decreases toward the central visual region (36), and again increases at the boundary with the central visual region, and is arranged in a ring shape. This design has the effect of making the eyes look patchy.
  • FIG. 13 shows a design in which the outline inside the colored region (38) looks jagged
  • FIG. 14 shows a design in which a colored pattern (39) shows a heart-shaped pattern. These are designed to enjoy the so-called fashion rather than show them naturally.
  • FIG. 15 shows a design including a display (43) representing, for example, a ballast axis and a cylindrical axis necessary for a toric lens in the colored region (41).
  • a display representing, for example, a ballast axis and a cylindrical axis necessary for a toric lens in the colored region (41).
  • these displays are effectively mixed in the colored region, so that it is difficult for a third party to distinguish. This is because the information obtained from these displays need not be particularly recognized by the user or a third party.
  • FIG. 16 is an example in which the colored opaque portion of the colored region (48) is arranged so that the tip side of the scale shape in the rear row is located in the middle of the adjacent scale shapes in the front row. Compared to the example of linear and radial arrangement, the feeling of random arrangement is reflected in a more natural design from a third party.
  • a manufacturing method using a double-sided mold in a case where a colored portion is sandwiched between lens materials includes the following steps as shown in FIG.
  • a monomer composition (50) for forming a contact lens is filled between a mold A that forms one surface of a contact lens and a mold B that can form a semi-finished product that is thinner than the contact lens product.
  • the process of polymerizing is performed.
  • the contact lens forming monomer composition (50) is further provided between a mold C forming the other surface of the contact lens and a mold A having a contact lens semi-finished product coated with the coloring composition. The process of filling and polymerizing.
  • (IV) A step of opening the mold A and the mold C and taking out the colored contact lens (61) after polymerization.
  • the mold A is preferably a mold that forms the inner surface side of the contact lens. This is because the inner surface side is a side in contact with the cornea, and it can be ensured that the colored opaque portion does not come out on the surface reliably, and at the worst it is not exposed to the cornea side.
  • the space formed in combination with the mold B must be thinner than the actual contact lens product. This is because the colored portion is sandwiched between lens materials.
  • the mold B is removed in step (II), and the contact lens semi-finished product after polymerization needs to be selectively left in the mold A.
  • the mold A and the mold B are molded with different resins, or the contact lens semi-finished product is easily adsorbed or peeled off to either the mold A or the mold B (for example, an interface).
  • an activator or plasma treatment it is preferable to apply an activator or plasma treatment.
  • an apparatus such as Japanese Patent No. 46579797 may be used, or heat may be applied to one mold and the mold A may be selectively left in the mold A.
  • a coloring composition is applied, and various methods can be appropriately employed for this method, such as screen printing, pad printing, and ink jet printing. Which application method is selected is determined in consideration of the physical properties of the coloring composition and the lens material. There are various methods (heating, drying, electron beam irradiation, etc.) for fixing to the contact lens semi-finished product. Moreover, application
  • step (III) the monomer composition for forming a contact lens is filled between a mold A and a mold C having a contact lens semi-finished product on which the coloring composition is fixed, and the coloring composition is sandwiched therebetween. Colored contact lenses are polymerized.
  • the contact lens forming monomer composition contains a solvent other than the polymerizable monomer (commonly referred to as wet mold) and does not contain a solvent. There are cases (usually called dry molds). In the wet mold, since the solvent is replaced with water after hydration, the size change is small between the state after polymerization and the state after hydration, whereas the size of the dry mold is swollen after hydration. Therefore, the space of the contact lens shape formed by the mold A and the mold C must take into account the size after hydration.
  • step (IV) mold A and mold C are opened, the colored contact lens after polymerization is taken out, and hydration treatment or surface hydrophilization treatment is performed as necessary. Since the present invention is an invention related to the design of a colored contact lens, the production method will be shown simply, but the polymerization temperature and time in each step, the type and composition ratio of the monomers in each composition, the colorant The type and the like are determined as appropriate.
  • the standard of the contact lens includes the curvature radius (BC) on the inner surface side, the center thickness (CT), the power (PW), the diameter (DIA), and the shape of the lens edge.
  • the PW is determined by the refractive index, BC, and the radius of curvature (FC) on the outer surface side.
  • BC refractive index
  • FC radius of curvature
  • the range of the radius of curvature of the cornea is as narrow as 7.5 to 8.2 mm, so the standard number of BC is determined in advance. Less than the standard number.
  • the manufacturing method by a double-sided mold in case a colored part appears on the surface of a lens includes the following processes, for example.
  • the advantage of this method is that the number of steps and the number of molds are smaller than when the colored portion is sandwiched between lens materials. Therefore, although it is very advantageous in terms of cost, it may appear on the surface just by embedding the colored portion, so that there may be some problems in safety.
  • the material of the colored part is a compound that has been confirmed to be safe for the eyes, so it is chemically safe, but the hardness of the lens material in the colored opaque part and the transparent part and the central visual region. This is because there is a possibility that a physical stimulus may occur because of the difference between the two. Further, there is a risk that the colored opaque part will be peeled off.
  • the colored contact lens of the present invention is basically manufactured by the mold polymerization method as described above.
  • the surface is formed by laser processing or the like so that a pattern with a predetermined shape is obtained.
  • a method of fixing the colorant composition to the portion after shaving is also possible, and the method is not limited to the mold polymerization method.
  • the colored contact lens of the present invention can be produced with non-hydrous soft contact lenses, silicone hydrogel soft contact lenses, oxygen permeable hard contact lenses, etc. in addition to the hydrous soft contact lenses as described above.
  • the type of lens material is not necessarily specified.
  • the colored contact lens was prepared as follows.
  • Female B made of polypropylene (PP), monomer composition for forming contact lenses (2-hydroxyethyl methacrylate (hereinafter referred to as 2-HEMA) 59 w / w%, glycerol methacrylate (hereinafter referred to as GMA) 30 w / w%, ethylene Glycol dimethacrylate (hereinafter referred to as EDMA) 0.5 w / w%, photopolymerization initiator (2-hydroxy-2-methyl-1-phenyl-propan-1-one) 0.5 w / w%, glycerin: 10 w / w (w%) 23 ⁇ l, fitted with a plasma-treated PP male mold A, irradiated with light (wavelength: 365 nm, 1 mW / cm 2 ) for 5 minutes in a nitrogen atmosphere, and contact lens forming monomer composition was polymerized.
  • PP polypropylene
  • the male mold A and the female mold B are semi-contact lens products having a front surface radius of curvature of 6.6 mm, a rear surface radius of curvature of 6.6 mm, a center thickness of 0.024 mm, and an outer diameter of 10.92 mm in a space where both molds are combined. It is supposed to be formed.
  • a colorant composition (2-HEMA: 30 w / w%, iron oxide: 40 w / w%, titanium oxide: 20 w / w%, thickening)
  • the agent polyvinylpyrrolidone: 10 w / w%) was pad-printed to a thickness of 10 ⁇ m and left in a blower at about 25 ° C. for 10 minutes.
  • the surface of the applied colorant composition was fixed to be dry.
  • a PP female model C was filled with 35 ⁇ l of the monomer composition for forming a contact lens, and left in a blower to be fitted with a male mold A to which a contact lens semi-finished product fixed with a colorant composition was attached.
  • light (wavelength: 365 nm, 3 mW / cm 2 ) was irradiated for 5 minutes.
  • the monomer composition for forming a contact lens was polymerized.
  • the female mold C and the male mold A were separated, the polymer was attached to the male mold A.
  • the polymer When the male mold A to which the polymer was adhered was immersed in 5 ml of purified water, the polymer was swollen and removed from the mold A. The polymer swollen in 5 ml of fresh purified water was immersed for 10 minutes at room temperature. The exchange of the purified water was repeated 5 times to remove the eluting component in the polymer. Next, the polymer is placed in a PP container containing 1 ml of purified water containing 0.9 w / v% sodium chloride and 0.03 w / v% ethylenediaminetetraacetic acid trisodium salt, and sealed with a multilayer film at 121 ° C. Autoclaved for 20 minutes.
  • a colored contact lens having PW: ⁇ 3.00D, CT: 0.11 mm, diameter: 14.2 mm, and the scale pattern of FIG. 1 formed inside the lens was obtained.
  • This lens is formed in an annular shape with a central visual region diameter of 8.0 mm and a colored region having a radial width of 2.5 mm.
  • Evaluation point 2 Black eyes appear to be naturally enlarged (as if no colored lens is worn).
  • Evaluation point 1 The dark pupil is somewhat unnatural (sometimes wearing a colored lens), but appears to be larger.
  • Evaluation point 0 The dark pupil does not appear to be unnatural (like wearing a colored lens) or enlarged. It was. The results are shown in Table 1.
  • the scale pattern of FIG. 1 used in Example 1 looked large naturally.
  • the dot pattern of FIG. 3 used in Comparative Example 1 was a slightly unnatural boundary in which the dark black and white of the white of the dot pattern were mixed at the boundary with the white eye, and looked somewhat unnatural.
  • the curve pattern of FIG. 4 used in Comparative Example 2 the boundary with the white eye looked natural, but the difference in contrast between the dark black on the center side of the lens and the black on the iris was clear, and the colored contact lens It gave me a feeling of wearing and was unnatural.
  • Comparative Example 3 has a clear boundary in which a straight rod and a dark black and white color of the spoke pattern are mixed deeply into the boundary with the white eye. It looked natural.
  • the ring pattern of FIG. 6 used in Comparative Example 4 looked natural at the boundary with the white eye, but the difference in contrast between the dark black on the center side of the lens and the black of the iris was clear, and a colored contact lens was worn. It gave me a feeling of being unnatural.
  • Each colored contact lens was prepared in the same manner as in Example 1 except that the design pattern in FIG. 1 was changed to the design shown in FIGS.
  • Each of the designs in FIGS. 7 to 10 is an example in which the curvature on the rear end side is variously changed in the shape of the colored opaque portion, and is linear (13) (FIGS. 7 and 8) toward the center of the lens.
  • FIG. 7 is different from FIG. 8 in that FIG. 7 is an example in which the size of the colored opaque portion gradually decreases toward the center of the lens, whereas FIG. 8 does not change the size.
  • the same evaluation test as in Example 1 was performed. The results are shown in Table 2.
  • the colored contact lens according to the present invention has a large pupil and looks natural.
  • Example 2 In the same manner as in Example 1, the PP female mold C and male mold A were fitted and polymerized. Female mold C was filled with 60 ⁇ l of the monomer composition for contact lens formation. The polymer formed in the female mold C was designed to be thicker than the lens of Example 1. When the female mold C and the male mold A were separated, the polymer was attached to the male mold A. This female mold was fixed to the shaft of a contact lens manufacturing lathe, rotated at 300 RPM, and the polymer was cut with a diamond blade to finish into a contact lens shape. In the same manner as in Example 1, the male mold A with the polymer finished in the contact lens shape was immersed in 5 ml of purified water, the same treatment was performed, and the polymer was inspected. A colored contact lens having PW: ⁇ 3.00D, CT: 0.11 mm, diameter: 14.2 mm, and the scale pattern of FIG. 1 formed inside the lens was obtained.
  • the present invention introduces new equipment because a colored contact lens having a pattern that gives a very natural appearance and can change the apparent color of the wearer's pupil can be manufactured by extension of the prior art. In addition, it can meet a wide range of consumer needs without reducing the cost increase.

Abstract

Le problème selon la présente invention est de fournir une conception de lentille de contact qui puisse donner une apparence naturelle aux yeux d'une personne qui porte la lentille de contact et qui peut modifier objectivement la couleur ou la texture d'origine des yeux, et de fournir une lentille de contact colorée que l'on puisse produire à un coût réduit sans affecter négativement les propriétés physiques inhérentes à la lentille de contact. La solution selon l'invention porte sur une lentille de contact colorée comprenant une zone visuelle centrale transparente et une zone colorée entourant la zone visuelle centrale, ladite lentille de contact colorée étant caractérisée en ce que la zone colorée a principalement une structure de type île et mer composée d'une partie transparente continue comme partie mer et deux parties opaques colorées discontinues comme parties îles, chacune des parties opaques colorées ayant une forme d'écaille et une taille de 70 à 600 µm, mesurée dans la direction du diamètre de la lentille, et de 40 à 300 µm, mesurée dans la direction de la circonférence de la lentille.
PCT/JP2013/053773 2012-02-20 2013-02-18 Lentille de contact colorée WO2013125470A1 (fr)

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CN201380004726.6A CN104246580B (zh) 2012-02-20 2013-02-18 着色隐形眼镜
KR1020147017799A KR101612743B1 (ko) 2012-02-20 2013-02-18 착색 콘택트렌즈
JP2013511473A JP5369273B1 (ja) 2012-02-20 2013-02-18 着色コンタクトレンズ

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WO2018229909A1 (fr) * 2017-06-14 2018-12-20 株式会社メニコン Lentille de contact cosmétique

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SG2013035662A (en) 2013-05-08 2014-12-30 Menicon Singapore Pte Ltd Systems and methods for printing on a contact lens
CN105467616A (zh) * 2016-02-16 2016-04-06 侯绪华 美瞳隐形眼镜
CN105487256B (zh) * 2016-02-16 2018-11-13 三门新贤科技有限公司 有源美瞳眼镜
CN106127830A (zh) * 2016-09-06 2016-11-16 成都通甲优博科技有限责任公司 一种虚拟美瞳瞳片的制作和显示方法
TWI790754B (zh) * 2020-03-06 2023-01-21 摩爾應材有限公司 可撓性薄膜、眼睛鏡片、眼睛鏡片收納器、及其操作方法
TWI771661B (zh) * 2020-03-06 2022-07-21 摩爾應材有限公司 可撓性薄膜、眼睛鏡片、眼睛鏡片收納器、及其操作方法
CN114690441A (zh) * 2022-03-30 2022-07-01 金陵科技学院 一种胶体晶体嵌入防蓝光隐形眼镜及其制备方法

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CN104246580A (zh) 2014-12-24
JPWO2013125470A1 (ja) 2015-07-30
CN104246580B (zh) 2016-08-17
KR101612743B1 (ko) 2016-04-15
KR20140097491A (ko) 2014-08-06

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