WO2009133587A1 - Vision corrective disposable contact lenses with combination of colors - Google Patents

Abstract

A vision corrective disposable contact lens which is replaced with a new one every designated wearing time period. The vision corrective disposable contact lens with a new structure is capable of preventing its wearer from forgetting the time for replacement and effectively preventing its improper prolonged use after a scheduled expiration date by increasing the wearer's satisfaction that comes from the replacement and positively prompting the replacement on the wearer's own will. Vision corrective disposable contact lenses (10) with a combination of colors include a combination of plural kinds of contact lenses (10a, 10b, 10c, 10d) with the same vision corrective property and different colors, out of which each one contact lens with a different color is provided to the same wearer every predetermined time period.

Description

Disposable contact lens for vision correction with multiple color combinations

The present invention relates to a contact lens for correcting visual acuity, and more particularly to a disposable contact lens that is used by replacing it with a new one every specified wearing time.

Conventionally, contact lenses are known as a type of medical device that corrects myopia, hyperopia, astigmatism, and the like in the human eye. As such contact lenses, hard contact lenses such as PMMA and soft contact lenses such as Poly-HEMA, PVP, silicone, and butyl acrylate copolymer are known. Foreign matters such as lipids and proteins are deposited on contact lenses, which is regarded as a problem in terms of hygiene. For this countermeasure, the contact lens needs to be cleaned and disinfected, which is a heavy burden on the user. In addition, there is a possibility that an eye disease may occur when a user wears a contact lens while cleaning or disinfection is insufficient or foreign matter that cannot be removed by cleaning or the like is attached.

Therefore, in recent years, by replacing with new contact lenses before dirt such as lipids and proteins accumulates on the contact lenses and adversely affects the eyes, it is possible to ensure the safety of the wearer and ease of use. There is provided a disposable contact lens that achieves both of the above. In this specification, the term “disposable contact lens” refers to a disposable type that is used and exchanged for one day or one week without lens care, and for two weeks or the like that is given lens care. As a generic term that includes both types of freak entry placement types that are used and exchanged over a period of time, and plan re-placement types that are used and exchanged over a period of one month, three months, etc. after applying predetermined lens care. use.

By the way, as long as the user replaces the disposable contact lens with a new one every specified wearing time, a good hygiene state is achieved while reducing the burden on the user such as cleaning and disinfection. Actually, however, it is left to the management of each user to replace each specified wearing time. Therefore, in a situation where the user does not want to replace with a positive intention, the replacement for each designated wearing time is not necessarily guaranteed. In many cases, if the malfunction is not recognized during use, there may be resistance to discarding the contact lenses that are in use, and the work of purchasing and replacing new contact lenses may be cumbersome. However, it may be used over a specified wearing time, and in fact, the existence of such a user has been confirmed.

However, it is recognized by contact lens providers that use beyond the specified wearing time in such disposable contact lenses must be prevented, but as described above, contact lens replacement is a user management. Currently, it is only possible to take precautions and warnings on contact lens packages, etc., and as a result, it is effective enough to prevent contact lens wearing beyond the specified wearing time. It was the actual situation that I could not say.

Thus, the use of a contact lens that exceeds the specified wearing time as described above not only deteriorates the appearance of the contact lens, but also causes a user's eye disease. It was done. In particular, the accumulation of dirt on contact lenses is difficult to recognize by self-awareness.Therefore, when the user feels uncomfortable in use, eye diseases may have developed as soon as possible. there were. In addition, test contact lenses used for ophthalmologic diagnosis and fashion contact lenses that vary the color of the iris part (not covered by the Pharmaceutical Affairs Law and not medical devices) are worn for a short period of time. However, the eyesight correction contact lens targeted by the present invention (which is a medical device subject to the Pharmaceutical Affairs Law) is commonly used, and therefore the wearing time is reduced. Excess is a unique and significant problem.

On the other hand, disposable contact lenses are remarkably widespread, and are described in, for example, [Patent Document 1] (Japanese Patent Laid-Open No. 2002-170008) together with the spread of mail-order sales using the Internet and mobile phones. Such a system has also been devised, and general users can easily obtain disposable contact lenses by mail order without even recognizing that it is a medical device, as if purchasing daily commodities by mail order. Trying to become. Under such social circumstances, the present applicant is greatly concerned that countermeasures against the above-described problems with disposable contact lenses are becoming more important and urgent issues.

In other words, this application, which is the largest contact lens manufacturer in Japan for the above-mentioned problems in disposable contact lenses, has made great efforts to ensure the widespread use and safety of contact lenses in Japan in the past. For example, [patent document 2] (Japanese Patent No. 373003) proposes a system for providing a contact lens with periodic ophthalmic examination as an essential factor. However, it is practically difficult to suppress social changes such as proposals of provision systems by users who prefer simplicity and sellers who accept them, and the spread of such systems, and problems such as the medical fee system are also involved. Therefore, forcing the user to have a regular check-up may not always be an effective strategy.

Japanese Patent Laid-Open No. 2002-170008 Japanese Patent No. 373003

Here, the present invention has been made in the background as described above, and the problem to be solved is a disposable contact lens in which a wearing time is designated, and the wearing that is designated in advance. It is an object of the present invention to provide a contact lens having a new structure that can be expected to be replaced with a new one every time.

In particular, the present invention is that a third party such as an ophthalmologist is forced to manage or regularly replaces a user as in the past, and the idea is changed by 180 °, By using the positive intention of the user, that is, by creating the desire to replace the contact lens currently used by the user, the contact lens is changed based on the positive intention of the user. Thus, it was completed based on a completely new idea of preventing wearing beyond the specified time.

The present invention is a disposable contact lens for correcting vision that has a specified wearing time and is periodically replaced with a new one by a user and has a same vision correction characteristic and color. A combination of multiple types of contact lenses composed of different types of contact lenses, and provided for the same user with different colors for each predetermined period. Features a contact lens. The contact lenses provided with different colors for each predetermined period may be provided to the user at different times for each color, or multiple types of contact lenses with different colors may be provided at the same time. It may be provided to the user.

In the present invention, it is particularly preferable that the four different seasons in the four seasons of the year (hereinafter referred to as “nodes”) have four different times depending on the replacement time of the same user so that the contact lenses are replaced with different colors. Colors are set on contact lenses and combined. More preferably, the replacement time for a new one (that is, the wearing time) is set to 3 months so that the change time of the four seasons becomes the replacement time of the disposable contact lens. Four types of contact lenses consisting of a combination of two colors (that is, four) can be individually opened and individually packaged and packaged in a single package so that it can be used simultaneously for the user. Made available. More preferably, the four different colors set for the contact lens are constituted by four season recall colors that remind the user of the four seasons.

The “four season recall colors” in the present invention are not particularly limited as long as they match the sensitivity of the user with respect to changes in the four seasons. Specifically, for example, it may be “four colors reminiscent of the four seasons” determined by counting from questionnaire results for a large number of people who can be contact lens users, or a specific user's own It may be “four colors that recall the four seasons” determined by sensitivity, or “four colors that recall the four seasons” determined by the sensitivity of the contact lens provider.

Further, in the present invention, when four types of colors corresponding to the four seasons are attached to the contact lens, each of the contact lenses in which the four different colors are set, the individual contact lens and the contact lens accommodated therein. A configuration in which at least one of the packages is provided with a display indicating the corresponding season of the four seasons can be suitably employed.

In addition, the “display indicating the corresponding season of the four seasons” may be, for example, a mode in which letters of spring, summer, autumn, winter and appropriate season words are displayed by printing or engraving, or a flower representing each season Various modes such as a mode of displaying characters, pictures, designs, etc. representing events and events can be adopted.

In such a disposable contact lens structured according to the present invention as set forth in claim 1, by providing the user with a contact lens of a color different from that of the contact lens currently in use, It is possible to effectively provoke a proactive and positive consciousness to change to a new contact lens. Originally, human beings are animals that are conscious of wanting changes such as improvements and improvements without being satisfied with the current situation, and are also recognized in academic fields such as psychology. Has curiosity. The disposable contact lens according to the present invention makes it possible to actively replace the contact lens with a new one according to the user's own intention by skillfully using the psychology inherent in such human beings. It is possible.

Regarding the operation and effect of the present invention, the point that should be particularly noted is that not only the user wants to replace the contact lens with a new intention, but also the user feels happy and radiant by replacing the contact lens with a new one. It is in the place where it has been realized that I can hold a very big feeling. In short, it is reluctant to replace it with a contact lens that is just new and is not in use by being forced to replace it indirectly, such as simply because it is old or because it has just reached its expiration date. The action and effect are completely different from the conventional disposable contact lens that is exchanged according to the intention. In the disposable contact lens according to the present invention, the user's willingness to change to a different one from that used so far greatly affects the user's intention to replace the contact lens with a new one. Not only can we have a greater desire, but we can have a joyful and radiant feeling by actually exchanging with a new contact lens.

In this way, the user himself / herself is happy with a happy feeling by exchanging it with a new contact lens using the human psychological change desire to be a little different from the previous one. Therefore, the disposable contact lens according to the present invention is passive as if forced by others as in the prior art. In a dimension different from contact lenses due to reasons, the user's positive and proactive action to replace with new contact lenses when using disposable contact lenses, and the user's satisfaction that accompanies them, It is possible to achieve a special effect that it is possible to achieve both of the above and the special technique of the present invention. Significance is the resides.

Thus, in the disposable contact lens according to the present invention, since the user is actively motivated to replace, the user expects the next replacement time of the contact lens, and spontaneously determines the replacement time. As a result, forgetting when to replace the contact lens is prevented. As a result, the contact lens is regularly discarded by the contact lens provider and replaced with a new one. It becomes possible to implement with higher probability.

In short, users of disposable contact lenses are aware that they have been instructed by the contact lens provider to periodically replace them, but (Α) they have forgotten their replacement time, or (Β) The troublesome replacement work is caused by the problem of using contact lenses that have expired as the main cause. However, in the disposable contact lenses according to the present invention, (α) By looking forward to the exchange time, it is possible to prevent forgetting the exchange time. (Β) For exchange work, it is actively exchanged by having greater expectations and joy than taking care of it. As a result, it is extremely important for unreasonable continued use beyond the regular replacement time specified by the contact lens provider. Excellent inhibitory effect Te is the can be exhibited.

As described above, the contact lens according to the present invention is made in order to solve the problems peculiar to the generally used vision correction disposable contact lens, and the above-mentioned (α), (β As described in (1), if it exhibits a unique effect in a commonly used disposable contact lens for correcting vision, it is completely different in dimension from a conventionally known color contact lens for fashion purposes. It is clear that there is. In particular, the configuration of the present invention is clearly different from simple color contact lenses in the following points.
First, a configuration in which wearing time is specified.
Secondly, a configuration in which a user periodically replaces a new one and uses it disposable.
Third, a configuration having vision correction characteristics.
Fourth, a configuration in which the same user is provided with different colors every predetermined period.
Fifth, a configuration in which different colors are handled in combination with each other and provided to the user.

In particular, it is configured by combining four types (four) of contact lenses composed of four colors of the four season recall colors described as a more preferable aspect of the present invention in the above-mentioned section of “Means for Solving the Problems”. According to the disposable contact lens mode, in which the replacement period is set every 3 months, which is the season of each season, it is a natural phenomenon and it takes advantage of the seasonal changes that occur regularly and regularly. Thus, it is possible to promote replacement of the disposable contact lens. In particular, in the four seasons, there is a selfish emotion that naturally wants to change in response to changes in the environment. This makes it possible to effectively recognize the time for replacement of disposable contact lenses that are set to “1”.

In particular, in the structure in which the “display indicating the corresponding season of the four seasons” is attached to the contact lens and its individual package, it is possible to enhance the impression of each contact lens used for each season, It is possible to further increase the enjoyment of replacement by the user, and to make the contact lenses to be used seasonally more clearly recognized. Also, the replacement period for each node in the four seasons is further improved for the user. It can also make you strongly aware.

It is explanatory drawing for demonstrating the disposable contact lens for visual acuity correction as one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Disposable contact lens 10a for visual acuity correction 1st color contact lens 10b 2nd color contact lens 10c 3rd color contact lens 10d 4th color contact lens 12 Optical part 14 Peripheral part

Hereinafter, some preferred embodiments of the present invention as described above that have been made to solve the above-described problems will be described. In addition, each structure employ | adopted in each aspect as described below is employable by arbitrary combinations as much as possible. In addition, aspects or technical features of the present invention are not limited to those described below, but are described in the entire specification and drawings, or can be understood by those skilled in the art from those descriptions. It should be understood that it is recognized on the basis of.

First, FIG. 1 shows one specific aspect of a multiple-color combination disposable contact lens for correcting vision that has a structure according to the present invention. The vision correction disposable contact lens 10 includes a first color contact lens 10a, a second color contact lens 10b, a third color contact lens 10c, and a fourth color contact lens 10d having different colors.

These contact lenses 10a, 10b, 10c, and 10d all have the same size and shape, and have the same optical characteristics for vision correction. In short, only the colors are different from each other. That is, these contact lenses 10a, 10b, 10c, and 10d are disposable contact lenses whose wearing time (use period) is designated in advance, and are replaced with new ones by the user and used disposable. For example, as a disposable type, a freak entry placement type, a plan replacement placement type, etc., the same user is provided in combination for periodic exchange. Therefore, these contact lenses 10a, 10b, 10c, and 10d have the same size and shape, and optical characteristics of visual acuity correction corresponding to the user. Specifically, each design value of the shape and size of the contact lens, for example, the lens power and prism amount of the optical part 12, the lens outer diameter including the optical part diameter and the peripheral part 14, the lens rear surface curvature radius, the lens whole surface curvature radius The peripheral portion and the edge portion are set to be the same.

However, the contact lenses 10a, 10b, 10c, and 10d having different colors combined with each other may have different optical characteristics other than the visual acuity correction. For example, by making the visible light transmittance different between contact lenses of different colors, the visible light transmittance of a contact lens worn at a time when the user feels dazzling is made visible by the contact lens worn at other times. A lens set lower than the light transmittance can be provided as a contact lens of a specific color.

In addition, for example, by changing the transmittance of ultraviolet rays between contact lenses of different colors, the transmittance of ultraviolet rays of contact lenses worn at times when the ultraviolet rays are strong is changed to the ultraviolet transmittance of contact lenses worn at other times. It is also possible to provide a lens set lower than that as a contact lens of a specific color.

Therefore, since the contact lens according to the present invention is commonly used by many users, the visible light transmittance at least in the optical unit 12 is set to 70% or more so as not to interfere with daily life. It is desirable that the visible light transmittance is set to 80% or more. More preferably, the visible light transmittance is set to 70% or more in the whole including the optical part 12 and the peripheral part 14 so that the wearing of the colored contact lens is not easily seen by others during wearing. More preferably, the visible light transmittance is set to 80% or more.

Note that the materials and types of the contact lenses 10a, 10b, 10c, and 10d may be any conventionally known. Specifically, for example, a hard contact lens such as RGP or a soft contact lens such as HEMA may be used. Alternatively, it may be a hard and soft composite type contact lens in which the hardness is different between the central portion and the peripheral portion as described in JP-A-3-92336 and JP-B-06-89045. .

Such contact lenses 10a, 10b, 10c, and 10d can be manufactured by various conventionally known methods such as cutting, molding, spin casting, and the like according to the material, shape, and the like. The coloring method can also be carried out by a conventionally known method. In addition to manufacturing a contact lens using a previously colored material, the contact lens can be colored by dyeing or the like after manufacturing.

Also, FIG. 1 shows only one eye for the user, but when worn on both the left and right eyes, the right eye and the left eye are provided in the same manner. In this case, the right-eye color and the left-eye color may be the same combination, but the right-eye color and the left-eye color may be different from each other. In particular, when the right-eye contact lens and the left-eye contact lens have the same shape, size, and optical characteristics and are worn without distinction between right and left in the user, the right-eye contact lens and the left-eye contact lens It is desirable that the ophthalmic contact lenses be the same color. On the other hand, when the right-eye contact lens and the left-eye contact lens have different shapes, sizes, or optical characteristics in the user, the right-eye contact lens and the left-eye contact lens have different colors. This is effective in making it easy for the user to distinguish between left and right and preventing wearing the wrong left and right.

Thus, the disposable contact lens 10 for correcting visual acuity of a plurality of color combinations composed of combinations of different colors as described above can be used by the user according to the replacement period set in advance according to the use period. It will be provided in a suitable manner so that different color contact lenses can be worn. Specifically, for example, when the preset replacement time is for a long period, if only the first color contact lens 10a is handed over to the user and the next replacement time is approached at a later date, Alternatively, the second color contact lens 10b may be handed over to the user to sequentially provide different color contact lenses. Thereby, the contact lens 10 of a new color is periodically provided to the same user. At the same time, the first color contact lens 10a and the second color contact lens 10b may be provided together, and the third color contact lens 10c and the fourth color contact lens 10d may be provided later. In this way, the contact lens worn by the user is periodically replaced with a contact lens of a new color.

Thus, by providing a contact lens of a color different from that currently worn as a contact lens to be worn next time, as described in the column of “Effect of the invention”, the user is proactive. As a result, we decided to change to a new contact lens as a positive consciousness, and as a result, we were conscious of the time to replace the next new contact lens. The expectation and pleasure of wearing something different from the one currently worn due to the effect of preventing the forgetfulness of replacement time and the color difference that the new contact lens can recognize by the user Satisfaction can be satisfied, and as a result, even if there are some troublesome procedures, Discard the's the task of exchange to a new contact lens, and the effect can be sufficiently expected to be conducted themselves in reluctant troublesome, it is being exhibited.

The disposable contact lens 10 for correcting visual acuity of a combination of multiple colors can also adopt a mode of daily color change, and can change color every week or every week, or change color every month or every month. Although effective, changing colors according to the seasons is more effective. There are four climate changes on the earth during the year due to the inclination of the earth's earth axis, and in Japan it is called the four seasons and is strongly recognized as a break in life. For this reason, people often prefer to change and change their feelings according to the changing seasons, and as a matter of fact, various events have been held according to the four seasons. By utilizing such a change in the division of the four seasons, the effect of changing the color of the contact lens as described above can be exhibited more greatly.

In other words, when the seasons change in the four seasons, there are four different colors, such as changing the color of contact lenses to be used, for example, when changing clothes or when the school or workplace year changes. By providing a combination of contact lenses 10a, 10b, 10c, and 10d, as described above, it is possible to prevent forgetting the replacement time of the contact lens, as well as subjectively by wearing a contact lens that has been changed to a new color. It is possible to enjoy greater joy and satisfaction.

In a preferred specific example at that time, contact lenses 10a, 10b, 10c, and 10d having four different colors are prepared by setting the wearing time (use period) for three months. A total of four contact lenses 10a, 10b, 10c, and 10d for one year are individually packaged and stored together in a single package and provided to the user at a time. To be done. In addition, contact lenses 10a, 10b, 10c, and 10d having four different colors, each of which is added as an emergency reserve in case of loss or damage, each with a wearing time of 3 months, A total of 8 sheets of 2 sheets each may be provided to the user at the same time.

As described above, if the contact lenses 10a, 10b, 10c, and 10d for one year are provided with four different colors, scheduled for replacement every three months, the replacement time for contact lenses of different colors can be changed in four seasons. It is much easier to set according to the section. At this time, preferably, four different colors set in the four types of contact lenses 10a, 10b, 10c, and 10d are used as the four-season recall colors that remind the user of the four seasons. Further, in each of the contact lenses 10a, 10b, 10c, and 10d in which four different colors are set, a display indicating a corresponding season of the four seasons is provided for at least one of the contact lens itself and the contact lens individual package. You may attach. By adopting colors and indications that correspond to the four seasons in contact lenses, individual packages, etc. in this way, the contact lens replacement period must be regularly visited as a natural phenomenon, so that people can not be aware of it It is possible to recall and memorize more strongly and effectively in association with changes. The specific types and combinations of the four colors selected as colors that recall the four seasons are not particularly limited as long as they match the user's sensibility. I imagined pink as the color that reminds me of cherry blossoms, green as the color that reminds me of summer, green as the color that reminds me of summer, purple as the color reminds me of autumn, and I imagined ice as the color that reminds me of winter Blue may be adopted as the seasonal recall color. As another example, select a green color reflecting a fresh green in the spring, a blue color reflecting the sea in the summer, a brown image reflecting the fallen leaves in the autumn, and a red color reflecting the fireplace in the winter. Also good.

Further, in the contact lenses 10a, 10b, 10c, and 10d in which four different colors are set corresponding to the seasonal change in the four seasons, the visible light transmittance and the ultraviolet transmittance as described above are different for the specific color contact lenses. Can be adopted in combination with the configuration to be set. That is, for example, the first color contact lens is used in spring, the second color contact lens is used in summer, the third color contact lens is used in autumn, and the fourth color contact lens is used in winter. In the case where the second color contact lens 10b is provided for summer use, the ultraviolet transmittance of the first color contact lens 10a, the third color contact lens 10c, and the fourth color used in other seasons are used. By setting it lower than the ultraviolet transmittance of the contact lens 10d, it is possible to suppress the adverse effect of ultraviolet rays on the user's eyes. In this way, by setting the use color according to the season and wearing a contact lens of a specific color for each season, measures against influencing factors such as ultraviolet rays that change every year are used. This makes it possible for a person to take more easily.

In addition, here, the first color contact lens 10a, the second color contact lens 10b, the third color contact lens 10c, and the fourth color contact lens 10d shown in FIG. It is not provided to the user as a contact lens all at once. Various provision modes of the contact lens to the user can be set in accordance with the scheduled use period and the color change timing of one contact lens and in consideration of the provision number desired by the user.

Specifically, in the case of a disposable type contact lens whose scheduled replacement time is one day, a change use to a contact lens with a different color is set every week, and the user is at once When it is desired to receive contact lenses for four weeks, seven first color contact lenses 10a, second color contact lenses 10b, third color contact lenses 10c, and fourth color contact lenses 10d, A total of 28 will be provided to the user at once. In addition, when the change use to the contact lens with a different color every month is set, the first color contact lens 10a is provided to the user for one month (for example, 30) at a time, and less than one month. After the elapse of (for example, 25 days), the second color contact lens 10b is provided to the user at a time for the next one month (for example, 31), and the contact lenses of different colors are sequentially divided for each month. To be provided. In this case as well, the multiple-color combination disposable contact lens 10 for correcting vision can be recognized in advance as a combination of contact lenses 10a, 10b, 10c, and 10d having different colors. Since only one provision mode in which the images are sequentially provided in a shifted manner is employed, the present invention is not configured by only a single-color contact lens.

In addition, for example, in the case of a plan replacement type contact lens whose planned replacement time is one month, a change use to a contact lens having a different color is set every three months in response to changes in the four seasons, and When the user wishes to receive contact lenses for one year at a time, the first color contact lens 10a, the second color contact lens 10b, the third color contact lens 10c, and the fourth color contact lens 10d A total of 12 pieces will be provided to the user at a time.

Thus, when a plurality of contact lenses are provided to the user at once, it is effective to make the plurality of contact lenses have the same color. As a result, the change of color can be managed by a contact lens manufacturer or a contact lens dealer who is the contact lens provider. This eliminates the need for management of the color change of the contact lens by the user, prevents the user from changing the color spontaneously, and allows the effect of the original color change to be exhibited stably. In addition, providing the following contact lenses of different colors, for example, by providing screening by an ophthalmologist as a requirement, will motivate users to actively undergo regular ophthalmic screening. It is.

However, when the contact lenses to be provided at the same time are the same color, the mode of providing the next color contact lens is not limited. For example, it is possible to provide an examination by an ophthalmologist as described above, but the contact lens of the next color is automatically delivered to the user at regular intervals under the control of the contact lens provider. You may make it provide.

By the way, when providing contact lenses to the user in various aspects as described above, each contact lens is packaged by individually packaging the contact lenses, which are individually packaged one by one, for each of the same color. It is good to keep. As a result, the contact lenses can be stored hygienically until each contact lens is used, and the convenience of management, transportation, provision, and use is improved.

As such individual contact lens packages, any of various known structures as described in, for example, Japanese Patent Application Laid-Open No. 2003-024123 and Japanese Patent Application Publication No. 2005-055760 can be adopted. The contact lenses housed in such individual packages are more preferably packaged by packaging a plurality of contact lenses of the same color in a single package such as a box or bag. As a result, by opening one package, contact lenses of the same color can be continuously exchanged during a preset period, and management by contact lens manufacturers, providers, and users is possible. And transportation are also easy.

However, depending on the set color replacement time, the usable period of one contact lens, the number of contact lenses to be provided to the user at a time, etc., one or more packages should be provided at a time. In this case, it is desirable to provide a plurality of packages of the same color, but depending on the total period of contact lens wear to be provided and the scheduled timing of color change, contact lenses of different colors It is also possible to adopt a mode in which the package is included in one package, or it is possible to simultaneously provide a plurality of packages in which a plurality of individual packages of contact lenses of the same color are accommodated in different color combinations. . In short, a mode in which the contact lens provided at one time is composed of only one color and the contact lens of another color is configured to be provided at another time is suitable for management or the like. However, it is also possible to adopt an embodiment in which contact lenses of different colors are provided at the same time.

Furthermore, the contact lens 10 for vision correction used in the present embodiment in a disposable manner is configured by a combination of lenses having the same vision correction characteristics and different colors as shown in FIG. A combination of a plurality of types of contact lenses 10a, 10b, 10c, and 10d, which are provided to the same user with different colors for each predetermined period. These contact lenses 10a, 10b, 10c, The specific color in 10d may be set to a specific color in advance by the determination of the contact lens manufacturer or dealer.

Further, in another aspect, a plurality of types of visual acuity correction characteristics and lens outer diameters and the like that are expected to be demanded are selected so that a user can select and specify a color. A series of different colors may be provided from a contact lens manufacturer to a contact lens store.

Specifically, setting ranges of appropriate optical characteristics (for example, spherical refractive power and cylindrical refractive power) having a plurality of types of lens outer diameter dimensions expected to be demanded and a plurality of types of base curves (back surface curvature). In the contact lenses made of specific materials, the contact lenses colored in 12 different colors with the same shape, size and optical characteristics are arranged as a series and combined with each other (combination structure) ) Will be provided and arranged by contact lens manufacturers and dealers.

The user will be presented with a series of 12 different contact lenses when purchasing contact lenses at a contact lens store or the like. From the contact lens series with these 12 colors set, for example, when changing the color according to the four seasons, a total of four colors corresponding to the seasons of spring, summer, autumn and winter are selected according to the user's preference. Will be determined. As a result, the user can wear the contact lens by changing the color every season with the color set independently by the user.

In such a series contact lens of a combination of multiple colors, it is possible to easily cope with the color setting according to the user's preference etc., and the contact lens with the user's main color change In addition to improving the effect of complying with the disposal and replacement period of the product, and further improving the joy and satisfaction of the user, it is also possible to respond to the user's personal originality requirements and improve the product value. A further improvement effect is realized.

As is clear from the above description, in the specific mode shown in FIG. 1, the contact lens 10a, in which four different colors are set in the disposable contact lens 10 for correcting vision according to the present invention, 10b, 10c, and 10d are combined. However, the effect of the present invention is exhibited by applying a contact lens set with different colors to a disposable contact lens. More than 5 colors, such as a combination of colored contact lenses, a combination of contact lenses with 3 different colors, or a combination of contact lenses with 12 different colors so that the color can be changed every month It can be realized by any combination of contact lenses with different colors.

Further, the density, saturation, brightness, etc. of the color to be colored on the contact lens are not particularly limited as long as the user can visually identify the color. However, the contact lens for correcting vision, which is the subject of the present invention, is mainly used by the general public on a daily basis. Therefore, when the wearer's eyes are viewed by other people, the eye color changes. It is desirable that the contact lens is colored so thin that it does not feel uncomfortable.

From this point of view, for example, in the case of a soft contact lens having an outer diameter larger than that of the hard contact lens, the colors of the optical unit 12 and the peripheral unit 14 can be different. Specifically, the peripheral part 14 of the contact lens that is placed on the sclera of the eye and easily visible by others is made colorless transparent or slightly colored near it, and the optical part 12 is made from the peripheral part 14. Can also be colored deeply. On the contrary, it is conceivable that the peripheral portion 14 is darker than the optical portion 12, or only the peripheral portion 14 is colored, and such an aspect is also included in the scope of the present invention. .

Furthermore, the different color modes include not only a difference in hue but also a difference in brightness, a difference in saturation, or a difference in a combination of two or more thereof. For example, as long as the user can visually recognize the difference in color, it is possible to set a different color in the contact lens as a different color even if the color is the same.

Further, the present invention can be applied to various types of disposable contact lenses for correcting visual acuity, such as those with a cylindrical lens power for correcting astigmatism, bifocal and multifocal contact lenses, or progressive-type perspective lenses. It can be applied to other contact lenses.

In addition, although not enumerated one by one, the present invention can be carried out in a mode to which various changes, modifications, improvements and the like are added based on the knowledge of those skilled in the art. It goes without saying that all are included in the scope of the present invention without departing from the spirit of the present invention.

Claims (11)

1. A disposable contact lens for eyesight correction that is designated for wearing time and is periodically replaced with a new one by the user and used disposable.
   Composed of a combination of multiple types of contact lenses that have the same visual acuity correction characteristics and different colors, and are provided to the same user with different colors every predetermined period. A multiple-color combination disposable contact lens for correcting vision.
2. Each individual package accommodated in different packages is accommodated in different packages, and multiple individual packages containing the same color in one package are accommodated. The disposable contact lens for correcting vision according to claim 1, which is provided to a user.
3. The plurality of contact lenses according to claim 1 or 2, wherein the contact lens provided at one time is constituted by only one color, and the contact lens of another color is provided at another time. Disposable contact lens for color correction vision correction.
4. A contact lens provided at one time is composed of a combination of contact lenses of four different colors, and these four types of contact lenses are accommodated in each individual package and also accommodated in one package. The disposable contact lens for correcting visual acuity of a plurality of color combinations according to claim 1, which is provided to a user at the same time.
5. 5. The contact lens according to any one of claims 1 to 4, wherein four different colors are set and combined in the contact lens according to the replacement time of the same user so that the replacement time corresponds to the four seasons of the year. Multi-color combination disposable contact lens for vision correction.
6. The disposable contact lens for correcting vision according to claim 5, wherein the four different colors set for the contact lens are constituted by four season recall colors that remind the user of each of the four seasons.
7. In each of the contact lenses in which four different colors are set, at least one of the contact lens and the individual package in which the contact lens is accommodated is displayed with a display indicating a corresponding season of the four seasons. The disposable contact lens for vision correction according to claim 5 or 6.
8. The disposable contact lens for correcting vision of multiple colors according to any one of claims 1 to 7, wherein the light transmittance is varied while the same vision correction characteristics are used in different colors.
9. 9. The disposable contact lens for correcting vision according to claim 8, wherein the light transmittance is an ultraviolet transmittance.
10. 10. A contact lens provided simultaneously to the same user, wherein the contact lenses are configured by combining contact lenses of different colors for the right eye and the left eye. Multi-color combination disposable contact lens for vision correction.
11. In a disposable contact lens for correcting vision that is worn for a specified period of time and is replaced with a new one by the user and used disposable.
    It consists of a combination of multiple types of contact lenses that have the same visual acuity correction characteristics and have different colors, and are provided to the same user with different colors every predetermined period. ,
    In addition, the visual acuity of a multi-color combination characterized by having a plurality of different colors for each of a plurality of preset visual acuity correction characteristics so that the user can select and specify the color A series of disposable contact lenses for correction.

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