WO2000054093A1 - Colored contact lens and method for using it - Google Patents

Abstract

A colored contact lens capable of being removed while the position of the contact lens is identified when one is wearing the contact lens because an identification section is different in color from the iris, characterized in that the contact lens has thereon an identification section formed annularly except at a portion thereof corresponding to the pupil, and the identification section is so sized as to overlap at at least part of the portion thereof corresponding to the wearer'sFR0000474 has a color that can be identified as a mark when the identification section overlaps the wearer's iris.

Description

 How to use tinted contact lenses and tinted contact lenses

 The present invention relates to a colored contact lens having a ring-shaped identification portion having a fixed width.

 Light

Background art

 Rice field

 Conventionally, a contact lens with an iris has been known as a contact lens having a ring-shaped identification portion.

 It is used for post-surgical treatments such as milt, corneal vitiligo, and iris heterochromia, as well as for adjusting the shape of the iris resection or defect.

 For this reason, the color of the identification portion is the same as the iris of the wearer, and the size is set to approximately the same size as the iris, thus limiting its use.

 On the other hand, contact lenses that are variously colored in a ring shape for cosmetic purposes are also known.

 These do not take into account the relationship with the iris color, so if the identification part is of a similar color, it has the effect of being easy to find when lost, but does not function as a landmark when worn.

 For this reason, there is a risk that the finger may directly touch the cornea when removing the contact lens without knowing whether or not the contact lens is mounted and the position of the contact lens, thereby damaging or injuring the contact lens.

The present invention has been made in view of the above circumstances, and its main problem is that even when the contact lens is worn, the eye is not worn by the identification unit. The purpose of the present invention is to provide a colored contact lens that can easily identify a contact lens because the color is set to be conspicuous and can be removed without fail. Disclosure of the invention

 The colored contact lens according to the present invention has a ring-shaped colored portion excluding a pupil-corresponding portion, includes a wearer's pupil-corresponding portion, and has a larger diameter than the pupil-corresponding portion and sufficiently provides photophobia. It consists of a transparent part formed in an unobstructed area and an identification part that overlaps in a ring shape with a width that overlaps a part corresponding to the iris or a part corresponding to the sclera. It is a color that can be identified as a landmark when it overlaps with the color of the iris or the color of the sclera, so it will be a mark when you use a contact lens or when you grip this lens.

 The identification unit may overlap the midpoint position or the outer peripheral position of the iris-corresponding portion.

 Further, the identification portion may overlap with a portion straddling the annular portion near the outer periphery of the iris-corresponding portion and a part of the sclera-corresponding portion adjacent to the outside.

 Further, the identification portion may be formed in a ring-shaped region that does not overlap with the iris-corresponding portion but overlaps a part of the scleral-corresponding portion outside thereof. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic view of a preferred colored contact lens according to the present invention as viewed from the front. FIG. 2 is a front view when the colored contact lens according to the embodiment of the present invention is worn. FIG. 3 is a diagram illustrating an example of removing the contact lens of FIG. FIG. 4 is a front view showing another embodiment in which the identification portion of FIG. 2 has a different colored pattern. Fig. 5 shows the different colored patterns of the identification part in Fig. 2. FIG. FIG. 6 is a front view showing an embodiment in which the identification portion of FIG. 2 has a different colored pattern. FIG. 7 is a front view showing an embodiment in which the arrangement of the identification section is different. FIG. 8 is a front view showing still another embodiment in which the arrangement of the identification units is different. BEST MODE FOR CARRYING OUT THE INVENTION

 Hereinafter, preferred embodiments of the colored lens according to the present invention will be described with reference to the drawings.

 This colored contact lens 1 is made of a soft contact lens, and as shown in FIGS. 2 and 3, the colored contact lens 1 covers only a part of the iris corresponding part 6 except for the pupil corresponding part 5. Ring-shaped identification part 3 is provided.

 Then, the pupil-corresponding portion 5 and the annular portion 6a near the inner periphery of the iris-corresponding portion that is in contact with the pupil are formed as a transparent portion 2 so as not to hinder the photophobia sufficiently, so that the iris-corresponding portion 6 The identification portion 3 which is colored so as to overlap only a part of is formed in a ring shape.

 In the figure, reference numeral 4 denotes an outer transparent part, and reference numeral 7 denotes a scleral corresponding part.

 In the adult colored contact lens 1 of the present invention, the base portion of the transparent portion 2 is set to have a diameter of 7.5 mm and a soil of less than 0.5 mm concentric with the center of the contact lens 1, and the identification portion 3 is similarly set. The diameter of the identification part 3 is set within the range of 7.5 mm ± 0.5 mm to 11.0 mm ± 0.5 mm, and the width of the identification part 3 is set within 0.5 mm to 4 mm. 1).

 The diameter of the colored contact lens 1 is for adults having a known size of 14 mm to 15 mm.

 In the case of a colored contact lens for children, the structure of the transparent part 2 and the identification part 3 is set to a smaller diameter than the above ratio.

In the schematic diagram of the colored contact lens 1 shown in FIG. The part A has a diameter of 7.0 mm, and the creation area B of the identification unit 3 is set within a range of a diameter of 7.0 mm to a diameter of 11.5 mm.

 Further, the outside of the creation area B is an outer peripheral area C.

 Note that the pupil size in a light place of a general adult is about 4 mm in diameter, so the base portion A is set to have a considerably large diameter with respect to the pupil. The identification section 3 is formed in the creation area B, and in the illustrated example, is formed in a belt shape having a diameter of 9.5 mm to 10.5 mm. Therefore, in the illustrated example, a region having a diameter of less than 9.5 mm inside and surrounded by the identification unit 3 is the transparent unit 2.

 In addition, an annular area beyond the diameter of 10.5 mm on the outer side of the identification section 3 and a diameter of 14 mm on the outer peripheral edge is an outer transparent section 4.

 This identification unit 3 has 0.5 mn! ~ 4mm width, preferably l mn! It is colored with a width of ~ 3 mm, and should be placed away from the pupil-corresponding location 5 (at least 直径 mm in diameter from the center of the colored contact lens) so that sufficient photophobia can be obtained. I just need.

 In the above embodiment, since the identification unit 3 is disposed at the iris-corresponding portion 6, it can be identified as a color of the identification unit 3 when it is overlapped with the color of the iris of the wearer (iris tone) when worn. Colors are used.

 In other words, a variety of colored contact lenses 1 provided with a color identification section 3 that can identify the assumed iris color of the wearer are prepared, and the iris of the wearer is adapted to the wearer. On the other hand, select and use the contact lens 1 of the identification unit 3 which is given a distinguishable color.

Here, the colored pattern of the identification unit 3 is not limited to a linear or dot pattern imitating an iris, but may be a belt-shaped figure, a geometric figure, other figures, symbols, characters, etc. The patterns can be continuous or used in various combinations. In FIGS. 2 and 3, the identification unit 3 is formed of a radially extending pattern and is provided concentrically with the contact lens 1 in a ring shape.

 In this case, since the width of the identification unit 3 is set to be smaller than the width of the iris at the iris corresponding portion 6, it serves as a mark and also functions as a decoration.

 If the width of the identification part 3 is reduced and a familiar graphic is displayed as a pattern, the appearance can be used as a decoration without a sense of discomfort.

 FIG. 4 shows a different embodiment in which a heart mark is used as an example of such a figure, and a number of contact lenses 1 are arranged concentrically at equal intervals and arranged in a ring to form an identification unit 3.

 As described above, the identification unit 3 may be intermittently connected with a gap in the transparent part between the figures.

 The other configuration is the same as that of the above embodiment, and the description is omitted.

 FIG. 5 shows another embodiment in which the colored figure of the identification unit 3 is obtained by extracting the figure in a transparent color from the belt-shaped ring.

 FIG. 6 shows a different embodiment in which the figure of the identification unit 3 is arranged at regular intervals in the circumferential direction between the diagram of the inner circumference and the outer circumference of the belt.

 Further, the colored pattern of the identification unit 3 may be a single-color belt-shaped ring pattern as shown in the schematic diagram, a radially or concentrically colored pattern, or any other known pattern. Can be applied.

 In these cases, the other configurations are the same as those of the above-described embodiment, and thus the description is omitted.

 Thus, the contact lens 1 is colored as a one-point.

In addition, as a method of forming the identification portion 3 on the contact lens 1, there are a sandwich method, a print method, a method of coloring simultaneously with lens molding, and other methods. 91

 6 known methods can be used.

 Next, an example of the color of the identification unit 3 selected at the time of use will be described. When the color of the iris is brown, select and use brown, blue, yellow, red, white, gray, etc. as the color of the identification section 3 that is darker than the brown of the iris.

 When the color of the iris is blue, the color of the identification part 3 is selected and used, such as blue, brown, yellow, green, red, and gray, which are darker than the brown of the iris. When the color of the iris is green, select and use green, blue, yellow, red, white, gray, etc., which is darker than the brown of the iris, as the color of the identification unit 3.

 In this way, by using a darker color that is the same as the color of the iris, or by using a color having a different hue, the effect as a mark can be obtained.

 The color of the identification section may be a single color or a combination of a plurality of colors.

 In the present embodiment, the case where the discriminating section is composed of a single color is exemplified, but the discriminating section may be composed of two or more colors.

 In this case, the combination of colors may be at least one color that is effective as a mark for the iris, and the other colors may be colors that are effective as a mark for the iris.

 For example, when a specific color is determined as the color of the identification unit 3, a color having a complementary color relationship to the specific color and other colors that make the specific color stand out are selected and combined, so that the determined color becomes more prominent. Is also good. When a plurality of colors are used, a plurality of colors may be combined as independent pattern colors, or may be used as color-coded patterns, or a combination thereof.

Next, in another embodiment of the colored contact lens 1 shown in FIG. 7, the identification unit 3 is formed to have a larger diameter than that of the above-described embodiment, and is located near the outer periphery of the wearer's iris-compatible portion 6. Part of the scleral contact area in contact with the part It is formed in a ring shape with a width straddling.

 The color of the identification portion 3 is the same color as that of the above-described embodiment, which can be identified as a mark when at least the portion overlapping at the iris corresponding portion 6 overlaps the iris of the wearer.

 Alternatively, the color of the identification portion 3 may be a color that can be identified as a mark when at least the portion overlapping at the scleral corresponding portion 7 overlaps the sclera of the wearer.

 Since the sclera is white here, any achromatic or chromatic color other than white can be identified.

 The inside of the identification section 3 is the transparent section 2, and the outside of the identification section 3 is the outer transparent section 4.

 The other configuration is the same as that of the above embodiment, and the description thereof will be omitted. Next, in a colored contrast lens 1 of a different embodiment shown in FIG. 8, a ring in which the identification unit 3 does not overlap with the wearer's iris-compatible portion 6 but overlaps the outer scleral-compatible portion 7 is provided. It has a shape.

 Since the sclera is white, the color of the identification section 3 can be an achromatic color or a chromatic color other than white, and can be identified as a mark when the color of the sclera overlaps.

 The inside of the identification section 3 becomes the transparent section 2 and the outside of the identification section 3 becomes the outer transparent section. If the identification section 3 is formed along the outer periphery of the colored contact lens 1, the outer transparent section is formed. Not done.

The other configuration is the same as that of the above embodiment, and the description thereof will be omitted. As described above, when the colored contact lens 1 is worn, the identification unit 3 has a ring shape having a narrow belt-like width. The identification section 3 serves as a mark so that the position of the contact lens can be easily visually recognized from the outside, and also functions as an eye decoration. Also, when the colored contact lens 1 is removed, the position of the contact lens 1 can be grasped by using the identification portion 3 as a mark, so that the lens can be easily removed by gripping the lens using the identification portion 3 as a mark when worn.

 In the above embodiment, a soft contact lens has been described as an example. However, in the present invention, a hard contact lens may be used.

 Further, the transparent portion 2 only needs to have transparency, and may be colorless or colored.

 In other words, various design changes can be made without changing the gist of the present invention. Industrial applicability

 With the above configuration, in the colored contact lens according to the present invention, the identification portion does not completely cover the iris-corresponding portion, but covers only a part of the iris-corresponding portion, or covers the scleral corresponding portion. The identification part becomes noticeable when worn.

 Therefore, there is no danger of damaging the cornea without knowing the position to be picked by the contact lens having no such ring-shaped identification portion.

 In addition, when looking at the mirror when wearing the contact lens, it is possible to visually determine whether or not the colored contact lens is attached to the eyes, thereby preventing damage to the contact lens and forgetting to remove it at bedtime in advance. .

 Furthermore, when removing the colored contact lens, it is possible to prevent the contact lens from being damaged if the colored contact lens is removed so that the periphery of the ring-shaped identification portion is exposed.

 In addition, it can also be used as a one-point decoration that has never been seen before.

Claims

The scope of the claims 1. In a contact lens with a colored portion excluding the pupil corresponding part,  A transparent part that includes the part corresponding to the pupil of the wearer and that is larger in diameter than the corresponding part of the pupil and that is formed in a range that does not sufficiently obstruct photophobia, and has a width that overlaps a part corresponding to the iris or the part corresponding to the sclera. To form a discriminating part that overlaps in a ring shape,  A colored contact lens, characterized in that the identification portion has a color that can be identified as a mark when the color of the identification portion overlaps the color of the iris or the color of the sclera of the wearer.  2. In a lens that has a ring-shaped colored part except for the part corresponding to the pupil,  The transparent part consisting of the part corresponding to the pupil of the wearer and the annular part near the inner circumference of the part corresponding to the iris that is in contact with it is set so as not to hinder the photophobia sufficiently.  A colored identification portion is formed in a ring shape within a range excluding the transparent portion at a portion corresponding to the iris,  2. The color contact lens according to claim 1, wherein the color of the identification portion is a color that can be identified as a mark when the color of the identification portion overlaps the color of the iris of the wearer.  3. Set the diameter of the transparent part concentric with the contact lens to less than 7.5 mm ± 0.5 mm, and the identification part from 7.5 mm ± 0.5 mm concentric with the contact lens. The colored contact lens according to claim 2, wherein the distance is within a range of 0.5 mm ± 0.5 mm, and the width of the identification portion is set within a range of 0.5 mm to 4 mm. 4. From 9.5 mm in diameter, the identification part is concentric with the contact lens. 4. The colored contact lens according to claim 2, wherein a colored pattern is provided with a width of 5 mm.  5. A ring-shaped identification part is formed with a width that spans the annular part near the outer periphery of the wearer's iris-corresponding part and the part of the sclera-corresponding part that contacts the outside, and the color of the identification part is small. The part that overlaps with the iris-compatible part is a color that can be identified as a landmark when it overlaps the iris of the wearer, or as a landmark when the part that overlaps with the scleral part overlaps the wearer's sclera. Made of distinguishable colors,  2. The colored condensed lens according to claim 1, wherein an inner region surrounded by the identification portion is formed in a transparent portion of a transparent color so as not to hinder photophobia.  6. The identification part is formed in an annular area that does not overlap with the part corresponding to the iris of the wearer and overlaps part of the part corresponding to the sclera outside the wearer.  When the color of the identification part overlaps with the wearer's sclera, it is a color that can be identified as a mark,  2. The colored contact lens according to claim 1, wherein an inner region surrounded by the identification portion is formed in a transparent portion having a transparent color.  7. The colored lens according to claim 5, wherein the identification portion is formed in a range of 10 mm to 14 mm in diameter concentric with the lens.  8. The colored contact lens according to claim 5, wherein the width of the identification portion is set within 0.5 mm to 4 mm.  9. The coloring contact according to claim 2, 5 or 6, wherein the color of the identification portion is one or more of the same color as the color of the wearer's iris and a dark color or a different color. lens. 10. The identification part must be a ring-shaped belt colored in a single color. 7. The colored contact lens according to claim 2, 5 or 6, wherein: Claim 1. The claim 2, 5, or 6, wherein the identification section is formed of a color-coded pattern or other graphic pattern or symbol provided within the width of the identification section and arranged in a ring shape. The colored contact lens described in 1 above.  1 2. In the usage of contact lenses with colored parts in a ring shape except for the pupil area,  The identification part is formed in a ring shape concentric with the contact lens and has a part of the wearer's iris-corresponding part or part of the sclera-corresponding part, or a predetermined width across the iris-corresponding part and the scleral-corresponding part. Is set,  Select a colored contact lens whose distinctive color is distinguishable from the color of the wearer's iris or sclera when worn.  The use of a colored contact lens, characterized in that the identification part of the colored contact lens serves as a mark when worn.