Contact lens molding method, contact lens assembly, and contact lens product

The contact lens molding method allows for independent sterilization of the dry contact lens and wetting solution, enhancing performance and development potential by forming a wet contact lens suitable for wearing through separate sterilization processes.

JP2026036678APending Publication Date: 2026-03-05PEGAVISION CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-03-05

AI Technical Summary

Technical Problem

Conventional contact lenses are limited in development potential due to their sealing structure, which hinders independent sterilization and optimal performance of both the lens and the wetting solution.

Method used

A contact lens molding method involving a dry contact lens placed in a sealed space with a sealing layer, followed by independent sterilization and immersion in a wetting liquid to form a wet contact lens suitable for wearing, allowing separate sterilization processes for the lens and solution.

Benefits of technology

Expands development scope and improves performance by enabling independent sterilization of the dry contact lens and wetting solution, maintaining optimal performance and preventing cracking.

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Abstract

The present invention provides a contact lens molding method, a contact lens assembly, and a contact lens product. [Solution] The contact lens assembly includes a cup body, a dry contact lens unsuitable for wearing in a human eye, a sealing layer removably bonded to the cup body, and a wetting fluid supply device. The sealing layer and the cup body together define an enclosed space, and the enclosed space accommodates the dry contact lens without containing any liquid. After forming an opening in at least one of the sealing layer and the cup body, the cup body can receive wetting fluid flowing out from the wetting fluid supply device through the opening, whereby the dry contact lens is immersed in the wetting fluid to form a wet contact lens suitable for wearing in a human eye, and the water content of the wet contact lens is greater than that of the dry contact lens.
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Description

[Technical Field]

[0001] The present invention relates to contact lenses, and more particularly to contact lens molding methods, contact lens assemblies, and contact lens products. [Background technology]

[0002] Conventional contact lenses are sealed in a space formed by a cup containing a storage solution and a sealing layer, but the structure adopted by conventional contact lenses has already limited their development potential. Therefore, the inventors believed that the above-mentioned drawbacks could be improved, and proposed the present invention, which is rationally designed and effectively overcomes the drawbacks. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE INVENTION Embodiments of the present invention provide a contact lens molding method, a contact lens assembly, and a contact lens product that can effectively improve upon drawbacks that may occur in conventional contact lenses. [Means for solving the problem]

[0004] An embodiment of the present invention provides a contact lens molding method, comprising: a preparation step of placing a dry contact lens having a first water content after drying in a cup body, covering the cup body with a sealing layer, and placing the dry contact lens in an enclosed space defined by the cup body and the sealing layer, the enclosed space being free of any liquid; a sterilization step of performing a dry lens sterilization operation on the dry contact lens placed in the enclosed space; and a wetting step of tearing the sealing layer from the cup body to form an opening, injecting a wetting liquid into the cup body through the opening, and immersing the dry contact lens in the wetting liquid for a predetermined time to form a wet contact lens suitable for wearing in a human eye, the wet contact lens having a second water content greater than the first water content.

[0005] An embodiment of the present invention also provides a contact lens assembly including a contact lens product and a wetting fluid supply device, the contact lens product including a cup body, a dry contact lens placed in the cup body, and a sealing layer, the dry contact lens having a shape unsuitable for wearing in a human eye and having a first water content, the sealing layer being removably bonded to the cup body to define an enclosed space together with the cup body, the enclosed space containing the dry contact lens without containing any liquid, the wetting fluid supply device comprising a wetting fluid suitable for immersing the dry contact lens, the contact lens product including an opening formed in at least one of the sealing layer and the cup body, the cup body being able to receive the wetting fluid flowing out of the wetting fluid supply device through the opening, whereby the dry contact lens is immersed in the wetting fluid to form a wet contact lens suitable for wearing in the human eye without cracks, the wet contact lens having a second water content greater than the first water content.

[0006] Another embodiment of the present invention provides a contact lens product, the contact lens product including a cup body, a dry contact lens placed in the cup body, and a sealing layer, the dry contact lens having a shape unsuitable for wearing in a human eye, the dry contact lens having a first water content of 0.001% to 20%, the sealing layer being removably bonded to the cup body to define a sealed space together with the cup body, the sealed space containing the dry contact lens without containing any liquid. [Effects of the Invention]

[0007] As described above, the contact lens molding method, contact lens assembly, and contact lens product according to the embodiments of the present invention provide a structure different from that of the conventional technology (e.g., the dry contact lens is placed in the sealed space defined by the cup body and the sealing layer), thereby expanding the overall scope for development (e.g., the dry contact lens and the wetting solution can be sterilized independently, improving overall performance).

[0008] Furthermore, the contact lens molding method and contact lens assembly according to the embodiments of the present invention can sterilize the dry contact lens and the wetting solution through independent sterilization processes, so that the dry contact lens and the wetting solution can more effectively maintain their optimal performance, provided that their respective sterilization requirements are met. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of a contact lens assembly according to an embodiment of the present invention. [Figure 2] FIG. 2 is an exploded view of the contact lens assembly of FIG. 1. [Figure 3] FIG. 3 is a perspective view of the dry contact lens of FIG. 2. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. [Figure 5] 1. FIG. 4 is a perspective view of the contact lens assembly of FIG. 1 injecting wetting fluid into the cup body. [Figure 6] 6 is a perspective view of the contact lens assembly of FIG. 5, showing the dry contact lens immersed in wetting fluid. FIG. [Figure 7] 7 is a perspective view showing the dry contact lens in the contact lens assembly of FIG. 6 forming a wet contact lens. [Figure 8] 8 is a perspective view of a wet contact lens of the contact lens assembly of FIG. 7 placed on a human eye. [Figure 9] 6 is a perspective view of another embodiment of the contact lens assembly of FIG. 5. [Figure 10] 1 is a flowchart of a contact lens molding method according to an embodiment of the present invention. [Figure 11] FIG. 11 is a schematic diagram of the sterilization process in FIG. 10. [Figure 12] 1 is a schematic diagram of a sterile filtration step in a contact lens molding method according to an embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] In order to better understand the features and technical contents of the present invention, reference is made to the following detailed description and drawings of the present invention, but the provided description and drawings are for reference and explanation only and do not limit the present invention.

[0011] The following describes the implementation of the "contact lens molding method, contact lens assembly, and contact lens product" of the present invention through specific specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention based on the content disclosed herein. The present invention can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details herein based on different perspectives and applications without departing from the concept of the present invention. It should be noted in advance that the accompanying drawings of the present invention are merely schematic illustrations and are not drawn to actual size. The technical content of the present invention will be described in more detail based on the following embodiments, but the scope of protection of the present invention is not limited by the disclosed content.

[0012] It should be understood that although the present specification may use terms such as "first" and "second" to describe various elements or features, these elements or features are not limited by these terms. These terms are primarily used to distinguish one element from another element or feature from another feature. Furthermore, the term "or" used in the present specification may include any one or more combinations of the associated listed items, depending on the actual situation.

[0013] 1 to 12 illustrate one embodiment of the present invention. This embodiment provides a contact lens assembly 100 and a contact lens molding method S100. The contact lens molding method S100 will be described as being applied to the contact lens assembly 100, but the present invention is not limited thereto. To facilitate understanding of this embodiment, the following will first introduce the contact lens assembly 100 and then describe the contact lens molding method S100.

[0014] As shown in FIGS. 1 to 4, in this embodiment, the contact lens assembly 100 includes a plurality of contact lens products 1 and a wetting fluid supply device 2 used with any one of the contact lens products 1. It should be noted that, although the contact lens assembly 100 is described as using a plurality of the contact lens products 1 with the wetting fluid supply device 2 in this embodiment, the present invention is not limited thereto. For example, in another embodiment not shown in the drawings, the contact lens assembly 100 may use one of the contact lens products 1 with the wetting fluid supply device 2, or the contact lens product 1 may be applied alone (e.g., for sale) or used in combination with another component, depending on actual needs. To facilitate understanding of this embodiment, the following description will first describe one of the contact lens products 1, and then explain the relationship with the plurality of contact lens products 1 as appropriate.

[0015] The contact lens product 1 includes a cup body 11, dry contact lenses 12a and 12b placed in the cup body 11, and a sealing layer 13 removably bonded to the cup body 11. The cup body 11 and the sealing layer 13 together define a sealed space 14, which contains the dry contact lenses 12a and 12b without containing any liquid. That is, only air and the dry contact lenses 12a and 12b exist in the sealed space 14. Thus, contact lenses that are sealed and immersed in a liquid or contact lenses that can be used immediately after opening are not the dry contact lenses 12a and 12b referred to in this embodiment.

[0016] More specifically, the dry contact lenses 12a, 12b have a shape (e.g., an irregular shape) that is unsuitable for wearing in a human eye E (e.g., FIG. 8), and the dry contact lenses 12a, 12b have a first water content. The first water content is 0.001% to 20%, preferably 3% to 10%, although the present invention is not limited thereto.

[0017] The shapes of the dry contact lenses 12a and 12b are fixed and cannot be elastically deformed (i.e., the dry contact lenses 12a and 12b cannot be turned inside out and are prone to cracking when subjected to stress). Furthermore, the first water content of the dry contact lenses 12a and 12b is 0.001% or more (preferably 3% or more), which prevents cracking. Furthermore, the dry contact lenses 12a and 12b have an outer surface 121 and an inner surface 122 opposite the outer surface 121. The outer surface 121 of the dry contact lenses 12a and 12b faces the cup body 11, which reduces the risk of cracking due to pressure when the dry contact lenses 12a and 12b are inserted into or removed from the cup body 11.

[0018] It should be further noted that the shapes of the dry contact lenses 12a, 12b may be randomly and irregularly varying (e.g., the shapes of the dry contact lenses 12a, 12b in the multiple contact lens products 1 include at least two different shapes), and therefore, the following description will exemplify a shape that is less susceptible to cracking, but is not limited thereto. In this embodiment, the dry contact lens 12a may have a groove 123 recessed from the outer surface 121, and the edge 124 of the dry contact lenses 12a, 12b may have multiple curved portions 1241, each having at least two different radii of curvature.

[0019] In this embodiment, the dry contact lenses 12a and 12b may be made of hydrogel, silicone hydrogel, or a biodegradable material, such as collagen or polysaccharide, but the present invention is not limited thereto.

[0020] The wetting fluid supplying device 2 contains wetting fluid 21 suitable for immersing the dry contact lenses 12a and 12b. In this embodiment, the amount of wetting fluid 21 contained in the wetting fluid supplying device 2 is described as an amount suitable for immersing a plurality of the dry contact lenses 12a and 12b, but the present invention is not limited thereto. For example, in another embodiment not shown in the drawings, the amount of wetting fluid 21 contained in the wetting fluid supplying device 2 may be adjusted to an amount suitable for immersing only one of the dry contact lenses 12a and 12b according to actual needs.

[0021] As shown in Figures 5 to 8, after forming an opening 15 in at least one of the sealing layer 13 and the cup body 11 of any of the contact lens products 1, the cup body 11 can take in the wetting liquid 21 flowing out from the wetting liquid supply device 2 through the opening 15, so that the dry contact lenses 12a, 12b are immersed in the wetting liquid 21 to form wet contact lenses 3 that are crack-free and suitable for wearing on the human eye E, and the wet contact lenses 3 have a second water content greater than the first water content.

[0022] Furthermore, after the dry contact lenses 12a, 12b having different outer shapes are immersed in the wetting liquid 21 to form the wet contact lenses 3, the grooves 123 are absent in each of the wet contact lenses 3, and the edges 31 of each of the wet contact lenses 3 are rounded. That is, the wet contact lenses 3 may have the same shape, but the present invention is not limited thereto. For example, in another embodiment not shown in the drawings, the wet contact lenses 3 may be slightly different from each other depending on actual needs (e.g., different refractive powers). Note that each of the wet contact lenses 3 is elastically deformable (i.e., the wet contact lenses 3 can be turned inside out), and the second water content of the wet contact lenses 3 may be 24% to 79%, preferably 35% to 79%, but the present invention is not limited thereto.

[0023] Also, the opening 15 of the contact lens product 1 is formed by removing the sealing layer 13 from the cup body 11, as shown in FIG. 6 . However, the method for forming the opening 15 can be adjusted or changed according to actual needs. For example, as shown in FIG. 9 , the sealing layer 13 may include a main sheet 131 bonded to the cup body 11 and a secondary sheet 132 connected to the main sheet 131, and the secondary sheet 132 is disposed substantially above the sealed space 14. Here, the opening 15 can be formed by removing the secondary sheet 132 from the main sheet 131 (i.e., the opening 15 may be formed only in the sealing layer 13 disposed at a position corresponding to the sealed space 14). In this way, the wetting liquid 21 is injected into the cup body 11 through the opening 15, and then the secondary sheet 132 is reattached to the main sheet 131 to reseal the opening 15, thereby reducing the risk of external contamination and influence on the wetting liquid 21. Alternatively, in another embodiment of the present invention not shown in the drawings, the opening 15 may be formed in the cup body 11 so that its position corresponds to the sealed space 14 .

[0024] 2 to 7, in order to easily form the wet contact lens 3 by immersing the dry contact lenses 12a and 12b in the wetting liquid 21, it is preferable that the wetting liquid 21 satisfy at least some of the following conditions, but the present invention is not limited thereto. The osmotic pressure of the wetting liquid 21 is 250 mOsmol (mOsmol / L) to 380 mOsmol, and the pH is 6.0 to 8.0. In other words, it is preferable that the wetting liquid 21 is isotonic and has a pH close to neutral.

[0025] The wetting liquid 21 may include a saline buffer such as a borate buffer or a phosphate buffer, and may further include at least one of a hydrophilic polymer, a surfactant, and a functional additive.

[0026] The hydrophilic polymer may be at least one selected from the group consisting of sodium gamma-polyglutamate, hyaluronic acid, methacrylate phosphatidylcholine (MPC), hydroxypropyl methylcellulose (HPMC), polyethylene glycol, polysaccharides, sodium alginate, sodium hyaluronate, carboxymethylcellulose, and polyvinyl alcohol. The surfactant may be at least one selected from the group consisting of polysorbates, sulfosuccinate esters, polyoxypropylene glycols, sodium lauryl sulfate, Geropon SBFA-30, and sodium laureth sulfate.

[0027] Furthermore, although the functional additive in this embodiment is described as including an antioxidant component susceptible to high-temperature degradation, it may also include at least one of other components susceptible to high-temperature degradation, cooling agents, and pharmaceutical ingredients according to actual needs, and the present invention is not limited thereto. For example, the pharmaceutical ingredient may be a water-soluble drug or a hydrophobic drug, where the water-soluble drug may be at least one of diclofenac, timolol, pilocarpine, atropine, and brimonidine, and the hydrophobic drug may be at least one of dexamethasone, axitinib, sunitinib, and cyclosporine.

[0028] Furthermore, the concentration of the antioxidant contained in the wetting liquid 21 has been reduced from a pre-sterilization concentration to a post-sterilization concentration that is at least 70% of the pre-sterilization concentration by the liquid sterilization process, and the post-sterilization concentration is at least 70% of the pre-sterilization concentration. Here, the antioxidant may include at least one of vitamin E, vitamin C, carotenoids (including β-carotene), lutein, zeaxanthin, α-lipoic acid, grape seed extract rich in anthocyanins, green tea extract rich in catechins, resveratrol, and squalene.

[0029] As described above, in this embodiment, the contact lens assembly 100 (and the contact lens product 1) provides a structure different from the prior art (e.g., the dry contact lenses 12a, 12b are placed in the sealed space 14 defined by the cup body 11 and the sealing layer 13), thereby expanding the overall room for development (e.g., the dry contact lenses 12a, 12b and the wetting liquid 21 can be sterilized independently, improving overall performance).

[0030] The above description is a brief explanation of the structure and corresponding functions of the contact lens assembly 100. Next, a contact lens molding method S100 (e.g., FIG. 10 ) applicable to the contact lens assembly 100 will be described. Therefore, the relevant technical content can be referred to the above description of the contact lens assembly 100 (e.g., the structure and composition of the dry contact lenses 12 a and 12 b, the composition of the wetting liquid 21, and the structure and composition of the wet contact lens 3), and therefore will not be described again here.

[0031] 10, in this embodiment, the contact lens molding method S100 includes a preparation step S110, a sterilization step S120, and a wetting step S130. The implementation manner of each of the above steps will be briefly described below. However, each of the above steps can be adjusted according to actual needs, and the present invention is not limited thereto.

[0032] As shown in Figures 10, 1, 2 and 4, in the preparation step S110, the dry contact lenses 12a, 12b having the first moisture content after drying are placed in the cup body 11, the cup body 11 is covered with the sealing layer 13, and the dry contact lenses 12a, 12b are placed in the sealed space 14 defined by the cup body 11 and the sealing layer 13, so that no liquid is contained in the sealed space 14.

[0033] In this embodiment, the dry contact lenses 12a, 12b are subjected to a hydration process and a swelling process before being dried. That is, the dry contact lenses 12a, 12b are washed to remove impurities before the drying process to prevent the presence of substances that may irritate the human eye E (e.g., FIG. 8). The drying process can be changed based on actual needs (e.g., natural drying, oven drying (e.g., oven temperature 30°C to 80°C), freeze-drying, etc.). Therefore, the first water content of the dry contact lenses 12a, 12b after the drying process can be 0.001% to 20%, preferably 3% to 10%, but the present invention is not limited thereto.

[0034] 10, 2, and 11, in the sterilization step S120, a dry lens sterilization operation is performed on the dry contact lenses 12a and 12b placed in the sealed space 14. That is, the cup body 11, the sealing layer 13, and the dry contact lenses 12a and 12b constitute the contact lens product 1 after undergoing the dry lens sterilization operation.

[0035] Furthermore, since the dry contact lenses 12a and 12b are not immersed in any liquid in the sterilization step S120, the sterilization method and environmental parameters can be selected and adjusted independently for each of the dry contact lenses 12a and 12b (for example, different sterilization methods and parameters may be suitable for each of the dry contact lenses 12a and 12b made of different materials), thereby enhancing the sterilization effect of the dry contact lenses 12a and 12b.

[0036] For example, in this embodiment, the sterilization assurance level (SAL) of the dry contact lenses 12a and 12b is 10 -6The dry lens sterilization process can be selected from radiation sterilization (e.g., performed by the radiation sterilization apparatus 200), ethylene oxide (EO) sterilization, and autoclave sterilization according to actual needs, but the present invention is not limited thereto.

[0037] As shown in Figure 10 and Figures 5 to 8, the wetting step S130 involves tearing the sealing layer 13 from the cup body 11 to form the opening 15, injecting the wetting liquid 21 into the cup body 11 through the opening 15, and immersing the dry contact lenses 12a, 12b in the wetting liquid 21 for a predetermined time to form the wet contact lens 3 suitable for wearing on the human eye E, and the wet contact lens 3 has a second water content greater than the first water content.

[0038] In this embodiment, the osmotic pressure of the wetting liquid 21 is 250 mOsmol / L to 380 mOsmol, and the pH is 6.0 to 8.0, thereby making the wetting liquid 21 suitable for forming the wet contact lens 3 from the dry contact lenses 12a, 12b. Note that the predetermined time is at least 5 minutes or more (for example, 5 to 15 minutes), thereby allowing the second water content of the wet contact lens 3 to be 24% to 79%, and preferably 35% to 79%.

[0039] Furthermore, after physical dimension inspection of the wet contact lens 3, such as diameter, base curve, power, thickness, etc., is carried out in accordance with ISO 18369-3:2017, the wet contact lens 3 is found to be in full compliance with the specification requirements, to be free of cracks, and to meet the relevant safety requirements for direct wear on the human eye E.

[0040] Before the wetting step S130 is performed, the wetting liquid 21 is subjected to a liquid sterilization process to reduce the antioxidant components contained in the wetting liquid 21 from a pre-sterilization concentration to a post-sterilization concentration that is at least 70% of the pre-sterilization concentration. Furthermore, the liquid sterilization process can enhance the sterilization effect of the wetting liquid 21 by selecting and adjusting the implementation method and environmental parameters independently for only the wetting liquid 21.

[0041] In this embodiment, the liquid sterilization step may be a sterilization filtration step S131 (for example, FIG. 12), a radiation sterilization step, or an ethylene oxide sterilization step, as needed, so that the sterility assurance level of the wetting liquid 21 is 10 -6 For example, taking vitamin C as an example of the antioxidant component, after the wetting solution 21 is subjected to sterile filtration step S131 using the sterile filtration device 300 (e.g., FIG. 12), the post-sterilization concentration can achieve at least 90% (e.g., 98%) of the pre-sterilization concentration. This is significantly superior to the prior art method in which, after simultaneously disinfecting contact lenses and a storage solution, the post-sterilization concentration of the antioxidant component (e.g., vitamin C) of the storage solution remains at or below 10% of the pre-sterilization concentration.

[0042] In other words, in this embodiment, the dry contact lenses 12a, 12b and the wetting liquid 21 can be sterilized by independent sterilization processes (the dry lens sterilization process and the liquid sterilization process), so that, provided that the respective sterilization requirements are met, the dry contact lenses 12a, 12b and the wetting liquid 21 can more effectively maintain their optimal performance (for example, the dry contact lenses 12a, 12b made of biodegradable materials and the high-temperature decomposable components contained in the wetting liquid 21 can be effectively prevented from deteriorating).

[0043] In addition, by increasing the content of functional additives (e.g., antioxidant components) contained in the wetting liquid 21 in the dry contact lenses 12a, 12b, the wet contact lens 3 formed by immersing the dry contact lenses 12a, 12b in the wetting liquid 21 can effectively absorb the functional additives and have better performance.

[0044] It should be noted that the dry contact lenses 12a, 12b and the wetting liquid 21 are <71> Sterility testing against three types of bacteria, namely aerobic bacteria, anaerobic bacteria, and fungi, by a standard-compliant third-party organization (SGS) confirmed that the dry contact lenses 12a, 12b and the wetting liquid 21 were indeed sterile.

[0045] Since the dry lens sterilization process and the liquid sterilization process are performed independently, the liquid sterilization process can be performed before the sterilization process S120, after the sterilization process S120, or simultaneously with the sterilization process S120, depending on the actual needs, and the present invention is not limited thereto.

[0046] [Advantageous Effects of the Embodiments] As described above, the contact lens molding method, contact lens assembly, and contact lens product according to the embodiments of the present invention provide a structure different from that of the conventional technology (e.g., the dry contact lens is placed in the sealed space defined by the cup body and the sealing layer), thereby expanding the overall room for development (e.g., the dry contact lens and the wetting solution can be sterilized independently, improving overall performance).

[0047] Furthermore, in the contact lens molding method and contact lens assembly according to the embodiments of the present invention, the dry contact lens and the wetting solution can be sterilized through separate sterilization processes, so that the dry contact lens and the wetting solution can more effectively maintain their optimal performance, provided that their respective sterilization requirements are met.

[0048] The above disclosure is merely a preferred embodiment of the present invention, and the scope of the claims of the present invention is not limited thereto. Therefore, all equivalent technical modifications made by utilizing the contents of the specification and drawings of the present invention are included in the scope of the claims of the present invention. [Explanation of symbols]

[0049] 100...Contact lens assembly 1. Contact lens products 11...Cup body 12a, 12b...Dry contact lenses 121...external surface 122...Inside 123....Groove 124...Edge 1241...Curved section 13...Sealing layer 131...Main sheet 132...Secondary seat 14...Closed space 15...Opening 2...Wetting fluid supply device 21...Wetting fluid 3. Wet contact lenses 31...Edge S100...Contact lens molding method S110...preparation process S120...Sterilization process S130...Wet process S131...Sterile filtration work E...human eye 200...Radiation sterilizer 300...Sterile filtration equipment

Claims

1. a preparation step of placing a dry contact lens having a first moisture content after drying in a cup body, covering the cup body with a sealing layer, and placing the dry contact lens in a sealed space defined by the cup body and the sealing layer, such that the sealed space is free of any liquid; a sterilization step of performing a dry lens sterilization operation on the dry contact lens placed in the sealed space; a wetting step of tearing the sealing layer from the cup body to form an opening, injecting a wetting liquid into the cup body through the opening, and immersing the dry contact lens in the wetting liquid for a predetermined time to form a wet contact lens suitable for wearing in a human eye, wherein the wet contact lens has a second water content greater than the first water content.

2. 2. The contact lens molding method according to claim 1, wherein, prior to the wetting step, the wetting liquid is subjected to a liquid sterilization operation to reduce the antioxidant component contained in the wetting liquid from a pre-sterilization concentration to a post-sterilization concentration that is at least 70% of the pre-sterilization concentration.

3. 3. The method of claim 2, wherein the wetting liquid has an osmotic pressure of 250 mOsmol / L to 380 mOsmol and a pH of 6.0 to 8.

0.

4. 3. The contact lens molding method according to claim 2, wherein the antioxidant component comprises at least one of vitamin E, vitamin C, carotenoids, lutein, zeaxanthin, alpha-lipoic acid, grape seed extract rich in anthocyanins, green tea extract rich in catechins, resveratrol, and squalene.

5. 3. The method of claim 2, wherein the liquid sterilization operation is a sterile filtration operation, a radiation sterilization operation, or an ethylene oxide sterilization operation.

6. 2. The contact lens molding method according to claim 1, wherein in the preparation step, the first water content of the dry contact lens after the drying step is 0.001% to 20%, and in the wetting step, the predetermined time is at least 5 minutes or more, and the second water content of the wet contact lens is 24% to 79%.

7. 10. The method of claim 1, wherein the dry lens sterilization operation is a radiation sterilization operation, an ethylene oxide sterilization operation, or an autoclave sterilization operation.

8. A contact lens assembly including a contact lens product and a wetting fluid supply device, The contact lens product includes a cup body, a dry contact lens disposed within the cup body, and a sealing layer; the dry contact lens has a shape that is not suitable for placement in a human eye and has a first water content; the sealing layer is removably joined to the cup body to define a sealed space together with the cup body, the sealed space containing a dry contact lens without containing any liquid; the wetting fluid supply device comprises a wetting fluid suitable for immersing the dry contact lens; A contact lens assembly, characterized in that after the contact lens product forms an opening in at least one of the sealing layer and the cup body, the cup body can take in the wetting liquid flowing out from the wetting liquid supply device through the opening, whereby the dry contact lens is immersed in the wetting liquid to form a wet contact lens that is crack-free and suitable for wearing in the human eye, and the wet contact lens has a second water content greater than the first water content.

9. 9. The contact lens assembly of claim 8, wherein the first water content of the dry contact lens is between 0.001% and 20% and the second water content of the wet contact lens is between 24% and 79%.

10. 9. The contact lens assembly of claim 8, wherein the first water content of the dry contact lens is between 3% and 10% and the second water content of the wet contact lens is between 35% and 79%.

11. 9. The contact lens assembly of claim 8, wherein the dry contact lens has an outer surface and an inner surface opposite the outer surface, the outer surface of the dry contact lens facing the cup body, the dry contact lens having a groove recessed from the outer surface, and the wet contact lens does not have the groove.

12. 9. The contact lens assembly of claim 8, wherein the edge of the dry contact lens has a plurality of curves, the plurality of curves having at least two different radii of curvature, and the edge of the wet contact lens is rounded.

13. 9. The contact lens assembly of claim 8, wherein the shape of the dry contact lens is fixed and the shape of the wet contact lens is elastically deformable.

14. 9. The contact lens assembly of claim 8, wherein the wetting fluid has an osmolality of 250 mOsmol / L to 380 mOsmol and a pH of 6.0 to 8.

0.

15. 9. The contact lens assembly of claim 8, wherein the wetting liquid is subjected to a liquid sterilization process to reduce the antioxidant component contained in the wetting liquid from a pre-sterilization concentration to a post-sterilization concentration that is at least 70% of the pre-sterilization concentration.

16. 16. The contact lens assembly of claim 15, wherein the antioxidant component comprises at least one of vitamin E, vitamin C, carotenoids, lutein, zeaxanthin, alpha-lipoic acid, anthocyanin-rich grape seed extract, catechin-rich green tea extract, resveratrol, and squalene.

17. 9. The contact lens assembly of claim 8, wherein the contact lens assembly includes a plurality of the contact lens products, the shapes of the dry contact lenses in the plurality of contact lens products include at least two different shapes, and the wet contact lenses in the plurality of contact lens products are the same shape.

18. a cup body, a dry contact lens placed in the cup body, and a sealing layer; the dry contact lens has a shape that is not suitable for wearing on a human eye, and the first water content of the dry contact lens is 0.001% to 20%; A contact lens product, characterized in that the sealing layer is removably joined to the cup body to define a sealed space together with the cup body, and the sealed space contains the dry contact lens without containing any liquid.

19. 20. The contact lens product of claim 18, wherein the first water content of the dry contact lens is between 3% and 10%, the shape of the dry contact lens is fixed, and the edge of the dry contact lens has multiple curvatures, the multiple curvatures having at least two different radii of curvature.

20. 19. The contact lens product of claim 18, wherein the first water content of the dry contact lens is between 3% and 10%, the shape of the dry contact lens is fixed, the dry contact lens has an outer surface and an inner surface opposite the outer surface, the outer surface of the dry contact lens faces the cup body, and the dry contact lens has a groove recessed from the outer surface.

Citation Information

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