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

Abstract

The invention discloses a contact lens forming method, a contact lens assembly and a contact lens product. The contact lens assembly comprises a cup body, a dry contact lens which is not suitable for being worn on a human eye, a sealing layer which is connected to the cup body in a tearable manner, and a wetting liquid supply device. And the sealing layer and the cup body form a sealed space together, and the sealed space is used for accommodating the dry contact lenses but not any liquid. After an opening is formed in at least one of the sealing layer and the cup body, the cup body can receive the wetting liquid flowing out of the wetting liquid supplier through the opening, so that the dry contact lens is soaked in the wetting liquid to form a wet contact lens suitable for being worn on the human eye. The water content is greater than that of the dry contact lens. Therefore, a framework different from the prior art is provided, and the overall development space is expanded.

Description

Technical Field

[0001] This invention relates to a contact lens, and more particularly to a contact lens forming method, a contact lens assembly, and a contact lens product. Background Technology

[0002] Existing contact lenses are sealed within a space consisting of a cup containing the contact lens solution and a sealing layer. However, the existing structure of contact lenses limits their development potential. Therefore, the inventors believe that the above-mentioned defects can be improved, and propose an invention with a reasonable design that effectively improves these defects. Summary of the Invention

[0003] This invention provides a contact lens forming method, a contact lens assembly, and a contact lens product, which can effectively improve the defects that may occur in existing contact lenses.

[0004] This invention discloses a method for forming contact lenses, comprising: a pre-treatment step: placing a dry contact lens having a first moisture content after drying into a cup body, and covering the cup body with a sealing layer, so that the dry contact lens is placed in a sealed space formed by the cup body and the sealing layer, which does not contain any liquid; a sterilization step: performing a dry lens sterilization operation on the dry contact lens placed in the sealed space; and a wetting step: tearing open the sealing layer from the cup body to form an opening, and injecting a wetting liquid into the cup body through the opening, so that the dry contact lens is soaked in the wetting liquid for a preset period of time to form a wet contact lens suitable for wearing on the human eye, which has a second moisture content greater than the first moisture content.

[0005] Optionally, prior to the wetting step, the wetting solution is subjected to a liquid sterilization operation to reduce the concentration of an antioxidant component contained in the wetting solution from a pre-sterilization concentration to a post-sterilization concentration, which is at least 70% of the pre-sterilization concentration.

[0006] Optionally, the wetting solution has an osmotic pressure between 250 mOsmol and 380 mOsmol, and a pH value between 6.0 and 8.0.

[0007] Optionally, the antioxidant ingredients include 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.

[0008] Optionally, the liquid sterilization operation may be a sterile filtration operation, a radiation sterilization operation, or an ethylene oxide sterilization operation.

[0009] Optionally, in the pre-treatment step, the first moisture content of the dry contact lens after the drying process is between 0.001% and 20%; in the wetting step, the preset time period is at least 5 minutes, and the second moisture content of the wet contact lens is between 24% and 79%.

[0010] Optionally, the dry sheet sterilization process can be a radiation sterilization process, an ethylene oxide sterilization process, or a moist heat sterilization process.

[0011] This invention also discloses a contact lens assembly, comprising: a contact lens product, including: a cup body; a dry contact lens disposed within the cup body, the dry contact lens having a shape unsuitable for wearing in the human eye, and the dry contact lens having a first water content; a sealing layer detachably attached to the cup body to collectively form a sealed space; wherein the sealed space contains the dry contact lens but does not contain any liquid; and

[0012] A humidifying fluid supply device having a humidifying fluid suitable for soaking dry contact lenses; wherein, after an opening is formed between the sealing layer of the contact lens product and at least one of the cups, the cups can receive the humidifying fluid flowing from the humidifying fluid supply device through the opening, so that the dry contact lens is soaked in the humidifying fluid to form a crack-free wet contact lens suitable for wearing in the human eye, having a second water content greater than a first water content.

[0013] Optionally, the first water content of dry contact lenses is between 0.001% and 20%, and the second water content of wet contact lenses is between 24% and 79%.

[0014] Optionally, the first water content of dry contact lenses is between 3% and 10%, and the second water content of wet contact lenses is between 35% and 79%.

[0015] Optionally, a dry contact lens has an outer surface and an inner surface opposite to the outer surface, the outer surface of the dry contact lens facing the cup body, and a groove recessed from the outer surface; wherein, a wet contact lens does not have a groove.

[0016] Optionally, the edge of a dry contact lens has multiple curved segments, and the multiple curved segments have at least two different radii of curvature; wherein, the edge of a wet contact lens is rounded.

[0017] Optionally, dry contact lenses are fixed in shape, while wet contact lenses are elastically deformable.

[0018] Optionally, the wetting solution has an osmotic pressure between 250 mOsmol and 380 mOsmol, and a pH value between 6.0 and 8.0.

[0019] Optionally, the wetting solution is subjected to a liquid sterilization process to reduce the concentration of an antioxidant component contained in the wetting solution from a pre-sterilization concentration to a post-sterilization concentration, which is at least 70% of the pre-sterilization concentration.

[0020] Optionally, the antioxidant ingredients include 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.

[0021] Optionally, the contact lens assembly includes multiple contact lens products, and the dry contact lenses of the multiple contact lens products have at least two shapes that are different from each other, while the multiple wet contact lenses have the same shape.

[0022] This invention also discloses a contact lens product, comprising: a cup body; a dry contact lens disposed within the cup body, the dry contact lens having a shape unsuitable for wearing in the human eye, and the dry contact lens having a first water content between 0.001% and 20%; and a sealing layer detachably connected to the cup body to collectively form a sealed space; wherein the sealed space contains the dry contact lens but does not contain any liquid.

[0023] Optionally, the first water content of the dry contact lens is between 3% and 10%, and the shape of the dry contact lens is fixed; wherein the edge of the dry contact lens has multiple curved segments, and the multiple curved segments have at least two different radii of curvature.

[0024] Optionally, the first water content of the dry contact lens is between 3% and 10%, and the shape of the dry contact lens is fixed; wherein the dry contact lens has an outer surface and an inner surface opposite to 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.

[0025] In summary, the contact lens forming method, contact lens assembly, and contact lens product disclosed in the embodiments of the present invention provide an architecture different from the prior art (e.g., the dry contact lens is placed within the sealed space formed by the cup body and the sealing layer), thereby expanding the overall development space (e.g., the dry contact lens and the wetting solution can be sterilized independently to improve overall performance).

[0026] Furthermore, the contact lens forming method and contact lens assembly disclosed in the embodiments of the present invention enable the dry contact lens and the wetting solution to be sterilized through independent sterilization operations. Therefore, while meeting their respective sterilization requirements, the dry contact lens and the wetting solution can also effectively retain their optimal performance.

[0027] To further understand the features and technical content of this invention, please refer to the following detailed description and accompanying drawings. However, these descriptions and drawings are only for illustrating the invention and are not intended to limit the scope of protection of the invention in any way. Attached Figure Description

[0028] Figure 1 This is a three-dimensional schematic diagram of a contact lens assembly according to an embodiment of the present invention.

[0029] Figure 2 for Figure 1 An exploded view of the contact lens components.

[0030] Figure 3 for Figure 2 A 3D diagram of a dry contact lens.

[0031] Figure 4 for Figure 1 A schematic cross-sectional view along section line IV-IV.

[0032] Figure 5 for Figure 1 A 3D diagram showing the contact lens assembly injecting the wetting solution into the cup.

[0033] Figure 6 for Figure 5 A three-dimensional diagram showing a dry contact lens in a contact lens assembly being immersed in a wetting solution.

[0034] Figure 7 for Figure 6 A three-dimensional diagram illustrating how dry contact lenses in a contact lens assembly form wet contact lenses.

[0035] Figure 8 for Figure 7 A three-dimensional diagram of a wet contact lens, part of a contact lens assembly, worn on the human eye.

[0036] Figure 9 for Figure 5 A three-dimensional schematic diagram of another aspect of the contact lens components.

[0037] Figure 10 This is a schematic diagram of the steps and processes of the contact lens forming method according to an embodiment of the present invention.

[0038] Figure 11 for Figure 10 A schematic diagram of the sterilization steps in the process.

[0039] Figure 12 This is a schematic diagram of the aseptic filtration process in the contact lens forming method according to an embodiment of the present invention. Detailed Implementation

[0040] The following specific embodiments illustrate the implementation of the "contact lens forming method, contact lens assembly, and contact lens product" disclosed in this invention. Those skilled in the art can understand the advantages and effects of this invention from the content disclosed in this specification. This invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this invention. Furthermore, the accompanying drawings of this invention are for simple illustrative purposes only and are not depictions of actual dimensions; this is stated in advance. The following embodiments will further describe the relevant technical content of this invention in detail, but the disclosed content is not intended to limit the scope of protection of this invention.

[0041] It should be understood that while terms such as "first," "second," and "third" may be used in this document to describe various elements or features, these elements or features should not be limited by these terms. These terms are primarily used to distinguish one element from another, or one feature from another. Furthermore, the term "or" as used herein may, as appropriate, include any combination of one or more of the related listed items.

[0042] Please see Figures 1 to 12 The image shows an embodiment of the present invention. This embodiment discloses a contact lens assembly 100 and a contact lens forming method S100. The contact lens forming method S100 is described in relation to the contact lens assembly 100, but the present invention is not limited thereto. For ease of understanding of this embodiment, the following description will first introduce the contact lens assembly 100, and then describe the contact lens forming method S100.

[0043] like Figures 1 to 4 As shown, the contact lens assembly 100 in this embodiment includes a plurality of contact lens products 1 and a moisturizing solution dispenser 2 associated with any one of the contact lens products 1. It should be noted that although the contact lens assembly 100 in this embodiment is described using a plurality of contact lens products 1 associated with the moisturizing solution dispenser 2, the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the contact lens assembly 100 may use only one contact lens product 1 associated with the moisturizing solution dispenser 2, depending on actual needs; or, the contact lens product 1 may be used alone (e.g., for sale) or in combination with other components. For ease of understanding of this embodiment, the following description will first focus on any one of the contact lens products 1, and then, as appropriate, introduce the relationship between the plurality of contact lens products 1.

[0044] The contact lens product 1 includes a cup body 11, a dry contact lens 12a and 12b disposed within the cup body 11, and a sealing layer 13 removably connected to the cup body 11. The cup body 11 and the sealing layer 13 together form a sealed space 14, which contains the dry contact lenses 12a and 12b but does not contain any liquid. That is, only air and the dry contact lenses 12a and 12b exist within the sealed space 14; therefore, any contact lens that is sealed and immersed in liquid or used immediately after opening is not considered the dry contact lenses 12a and 12b as referred to in this embodiment.

[0045] More specifically, the dry contact lenses 12a and 12b are unsuitable for wearing in the human eye E (e.g., Figure 8 The dry contact lenses 12a and 12b have a first water content, which may be between 0.001% and 20%, and preferably between 3% and 10%, but the invention is not limited thereto.

[0046] Furthermore, the dry contact lenses 12a and 12b are fixed in shape and cannot be elastically deformed (that is, the dry contact lenses 12a and 12b cannot be flipped and are easily cracked under stress), and the dry contact lenses 12a and 12b have a water content of 0.001% or more (preferably 3% or more) to prevent them from cracking. More specifically, the dry contact lenses 12a and 12b have an outer surface 121 and an inner surface 122 opposite to the outer surface 121. The outer surface 121 of the dry contact lenses 12a and 12b faces the cup body 11, thereby reducing the possibility of the dry contact lenses 12a and 12b breaking due to pressure when inserted or removed from the cup body 11.

[0047] It should be further noted that, since the shapes of the dry contact lenses 12a and 12b can be randomly varied irregular shapes (e.g., the shapes of the dry contact lenses 12a and 12b of multiple contact lens products 1 include at least two different shapes), the following examples illustrate shapes that are less likely to cause cracks, but are not limited thereto. In this embodiment, the dry contact lens 12a may have a groove 123 recessed from the outer surface 121, and the edges of the dry contact lenses 12a and 12b may also have multiple curved segments 1241, and the multiple curved segments 1241 have at least two different radii of curvature.

[0048] Furthermore, in this embodiment, the dry contact lenses 12a and 12b may be made of the following materials: hydrogel, silicone hydrogel, or biodegradable material. The biodegradable material may be, for example, collagen or polysaccharide, and this invention is not limited thereto.

[0049] The humidifying fluid supply 2 has a humidifying fluid 21 suitable for soaking the dry contact lenses 12a and 12b. In this embodiment, the capacity of the humidifying fluid 21 in the humidifying fluid supply 2 is described as being suitable for soaking multiple dry contact lenses 12a and 12b, but the invention is not limited thereto. For example, in other embodiments of the invention not shown, the capacity of the humidifying fluid 21 in the humidifying fluid supply 2 may be adapted to be suitable for soaking only a single dry contact lens 12a or 12b, depending on actual needs.

[0050] like Figures 5 to 8 As shown, when the sealing layer 13 of any of the contact lens products 1 forms an opening 15 with at least one of the cup body 11, the cup body 11 can receive the wetting liquid 21 flowing from the wetting liquid supply 2 through the opening 15, so that the dry contact lenses 12a and 12b are immersed in the wetting liquid 21 to form a crack-free wet contact lens 3 suitable for wearing in the human eye E, which has a second water content greater than the first water content.

[0051] Furthermore, after multiple dry contact lenses 12a, 12b with different shapes are soaked in the wetting solution 21 to form multiple wet contact lenses 3, each wet contact lens 3 does not have the groove 123, and the edge of each wet contact lens 3 is rounded; that is, multiple wet contact lenses 3 may have the same shape, but are not limited thereto. For example, in other embodiments not shown in the present invention, multiple wet contact lenses 3 may vary slightly due to actual needs (e.g., different refractive power). Moreover, each wet contact lens 3 is elastically deformable (i.e., each wet contact lens 3 can be flipped), and the second water content of the wet contact lens 3 may be between 24% and 79%, preferably between 35% and 79%, but the present invention is not limited thereto.

[0052] Furthermore, the opening 15 of the contact lens product 1 is located at... Figure 6The opening 15 is formed by the sealing layer 13 being torn off from the cup body 11, but the way the opening 15 is formed can be adjusted and changed according to actual needs. For example, such as Figure 9 As shown, the sealing layer 13 may include a main sheet 131 connected to the cup body 11 and a secondary sheet 132 connected to the main sheet 131, with the secondary sheet 132 generally located above the sealed space 14. The secondary sheet 132 can be torn off from the main sheet 131 to form the opening 15 (that is, the opening 15 may also be formed only in the sealing layer 13 and its position corresponds to the sealed space 14), so that after the wetting liquid 21 is injected into the cup body 11 through the opening 15, the secondary sheet 132 can adhere back to the main sheet 131, allowing the opening 15 to be closed again, thereby reducing the potential external contamination or crosstalk to the wetting liquid 21. Alternatively, in other embodiments not shown in this invention, the opening 15 may also be formed in the cup body 11 and its position corresponds to the sealed space 14.

[0053] It should be noted that, as Figures 2 to 7 As shown, in order for the wetting solution 21 to facilitate the formation of wet contact lenses 3 from dry contact lenses 12a and 12b through soaking, the wetting solution 21 preferably possesses at least some of the following conditions, but the present invention is not limited thereto. The wetting solution 21 has an osmotic pressure between 250 mOsmol / L and 380 mOsmol / L, and a pH value between 6.0 and 8.0. That is, the wetting solution 21 is preferably an isotonic solution with a pH value close to neutral.

[0054] Furthermore, the wetting solution 21 contains a saline buffer, which may be a borate buffer or a phosphate buffer. The wetting solution 21 may also further contain at least one of a hydrophilic polymer, a surfactant, and a functional additive.

[0055] The hydrophilic polymer may be at least one selected from the group consisting of sodium γ-polyglutamic acids, hyaluronic acid, methyl acrylate 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.

[0056] Furthermore, the functional additive described in this embodiment is based on containing a heat-sensitive antioxidant component. However, the functional additive may also employ other heat-sensitive components, cooling agents, and at least one of pharmaceutical components, depending on actual needs. This invention does not impose any limitations on these components. For example, the pharmaceutical component may be a water-soluble or hydrophobic drug; wherein, the water-soluble drug may be at least one of diclofenac, timolol, pirocarpine, atropine, and brimonidine; and the hydrophobic drug may be at least one of dexamethasone, axitinib, sunitinib, and cyclosporine.

[0057] Furthermore, the wetting solution 21 undergoes a liquid sterilization process to reduce the concentration of the antioxidant components contained in the wetting solution 21 from a pre-sterilization concentration to a post-sterilization concentration, which is at least 70% of the pre-sterilization concentration. The antioxidant components may include at least one of the following: Vitamin E, Vitamin C, carotenoids (including β-carotene), lutein, zeaxanthin, alpha-lipoic acid, anthocyanin-rich grape seed extract, catechin-rich green tea extract, resveratrol, and squalene.

[0058] As described above, the contact lens assembly 100 (and the contact lens product 1) in this embodiment provides an architecture different from the prior art (e.g., the dry contact lenses 12a and 12b are placed within the sealed space 14 formed by the cup body 11 and the sealing layer 13), thereby expanding the overall development space (e.g., the dry contact lenses 12a and 12b and the wetting solution 21 can be sterilized independently to improve overall performance).

[0059] The above content has given a general description of the structure and function of the contact lens assembly 100. The following content will then describe the contact lens forming method S100 (e.g.: Figure 10 This applies to the contact lens assembly 100, and therefore the relevant technical content can also be referred to the above description of the contact lens assembly 100 (such as the structure and composition of the dry contact lenses 12a and 12b, the composition of the wetting solution 21, and the structure and composition of the wet contact lens 3), and will not be repeated here.

[0060] like Figure 10 As shown, the contact lens forming method S100 in this embodiment includes a preparatory step S110, a sterilization step S120, and a humidification step S130. The implementation of each of the above steps will be described in general below. However, each of the above steps can also be adjusted according to actual needs, and the present invention does not limit them.

[0061] The preceding step S110: as follows Figure 10 , Figure 1 , Figure 2 and Figure 4As shown, the dry contact lenses 12a and 12b, which have the first moisture content after drying, are placed into the cup body 11, and the cup body 11 is covered with the sealing layer 13, so that the dry contact lenses 12a and 12b are placed in the sealed space 14 formed by the cup body 11 and the sealing layer 13, which does not contain any liquid.

[0062] In this embodiment, the dry contact lenses 12a and 12b undergo hydration and swelling processes before the drying process; that is, the dry contact lenses 12a and 12b are cleaned and have impurities removed before the drying process to avoid irritating the human eye E (e.g., eye irritation). Figure 8 The material is described above. Furthermore, the drying process can vary depending on actual needs, such as natural drying, oven drying (e.g., oven temperature between 30°C and 80°C), or freeze drying, so that the first moisture content of the dry contact lenses 12a and 12b after the drying process can be between 0.001% and 20%, and preferably between 3% and 10%, but the present invention is not limited thereto.

[0063] The sterilization step S120: as follows: Figure 10 , Figure 2 and Figure 11 As shown, the dry contact lenses 12a and 12b placed within the sealed space 14 undergo a dry-film sterilization process. In other words, the cup body 11, the sealing layer 13, and the dry contact lenses 12a and 12b constitute the contact lens product 1 after the dry-film sterilization process.

[0064] Furthermore, in the sterilization step S120, the dry contact lenses 12a and 12b are not immersed in any liquid. Therefore, the dry lens sterilization operation can be carried out separately for the dry contact lenses 12a and 12b, and the implementation method and environmental parameters can be selected and adjusted (e.g., different dry contact lenses 12a and 12b made of different materials are suitable for different sterilization methods and parameters), so that the dry contact lenses 12a and 12b can achieve selective sterilization effect.

[0065] For example, the efficacy level of the dry contact lenses 12a and 12b in this embodiment can achieve a sterilization assurance level (SAL) of 10⁻⁶. The dry lens sterilization process can be performed using radiation sterilization (e.g., by radiation sterilization equipment 200), ethylene oxide (EO) sterilization, or autoclaved sterilization, depending on actual needs, but the present invention is not limited to these methods.

[0066] The wetting step S130: as follows: Figure 10 ,and Figures 5 to 8 As shown, the sealing layer 13 is torn open from the cup body 11 to form the opening 15, and the wetting liquid 21 is injected into the cup body 11 through the opening 15, so that the dry contact lenses 12a and 12b are soaked in the wetting liquid 21 for a preset period of time to form the wet contact lens 3 suitable for wearing in the human eye E, which has a second water content greater than the first water content.

[0067] In this embodiment, the wetting solution 21 has an osmotic pressure between 250 mOsmol and 380 mOsmol, and a pH value between 6.0 and 8.0, thereby making the wetting solution 21 suitable for forming the dry contact lenses 12a and 12b into the wet contact lenses 3. Furthermore, the preset time period is at least 5 minutes (e.g., 5 minutes to 15 minutes), so that the second water content of the wet contact lenses 3 can be between 24% and 79%, and preferably between 35% and 79%.

[0068] Furthermore, after physical dimensional tests such as diameter, base curve, power, and thickness were conducted in accordance with ISO 18369-3:2017, the wet contact lens 3 fully complies with the specifications and has no cracks, meeting the relevant safety requirements for direct wear on the human eye E.

[0069] Prior to the wetting step S130, the wetting liquid 21 undergoes a liquid sterilization process to reduce the concentration of the antioxidant components contained in the wetting liquid 21 from the pre-sterilization concentration to the post-sterilization concentration, which is at least 70% of the pre-sterilization concentration. Furthermore, the liquid sterilization process can be implemented and the environmental parameters selected and adjusted specifically for the wetting liquid 21 to facilitate selective sterilization of the wetting liquid 21.

[0070] In this embodiment, the liquid sterilization operation can be performed using a sterile filtration operation S131 (e.g., as needed) depending on actual requirements. Figure 12The wetting solution 21 can be sterilized by radiation or ethylene oxide to achieve a sterility level of 10⁻⁶. For example, if the antioxidant component is vitamin C, the wetting solution 21 can be sterilized after sterile filtration S131 is performed using sterile filtration equipment 300 (e.g., after...). Figure 12 The post-sterilization concentration can reach at least 90% (e.g., 98%) of the pre-sterilization concentration, which is significantly better than the prior art where the antioxidant components (e.g., vitamin C) of the contact lens solution are only less than 10% of the pre-sterilization concentration after simultaneous disinfection of the contact lenses and the maintenance solution.

[0071] In other words, in this embodiment, the dry contact lenses 12a and 12b and the wetting solution 21 are sterilized through independent sterilization processes (such as the dry lens sterilization process and the liquid sterilization process). Therefore, while meeting their respective sterilization requirements, the dry contact lenses 12a and 12b and the wetting solution 21 can also effectively retain their optimal performance (e.g., the high-temperature degradable components contained in the dry contact lenses 12a and 12b made of biodegradable materials and the wetting solution 21 can be effectively prevented from being reduced).

[0072] Furthermore, the dry contact lenses 12a and 12b, through the high content of the functional additives (such as the antioxidant components) retained in the wetting solution 21, enable the wet contact lenses 3 formed by immersing the dry contact lenses 12a and 12b in the wetting solution 21 to effectively absorb the functional additives, thus having optional efficacy.

[0073] It should be further noted that the dry contact lenses 12a and 12b and the wetting solution 21 were inspected by a third-party organization (SGS) in accordance with USP. <71> According to the standard, after sterility tests were conducted on three types of bacteria: aerobic, anaerobic, and fungal, the dry contact lenses 12a and 12b and the wetting solution 21 were indeed in a sterile state.

[0074] Furthermore, since the dry tablet sterilization operation and the liquid sterilization operation are performed independently, the liquid sterilization operation can be performed before, after, or simultaneously with the sterilization step S120, depending on actual needs. This invention does not impose any restrictions on this.

[0075] [Technical Effects of the Embodiments of the Invention]

[0076] In summary, the contact lens forming method, contact lens assembly, and contact lens product disclosed in the embodiments of the present invention provide an architecture different from the prior art (e.g., the dry contact lens is placed within the sealed space formed by the cup body and the sealing layer), thereby expanding the overall development space (e.g., the dry contact lens and the wetting solution can be sterilized independently to improve overall performance).

[0077] Furthermore, the contact lens forming method and contact lens assembly disclosed in the embodiments of the present invention enable the dry contact lens and the wetting solution to be sterilized through independent sterilization operations. Therefore, while meeting their respective sterilization requirements, the dry contact lens and the wetting solution can also effectively retain their optimal performance.

[0078] The content disclosed above is only a preferred and feasible embodiment of the present invention, and is not intended to limit the patent scope of the present invention. Therefore, all equivalent technical changes made based on the content of the present invention specification and drawings are included within the patent scope of the present invention.

Claims

1. A method for forming contact lenses, characterized in that, The contact lens forming method includes: A preliminary step: Place a dry contact lens with a first moisture content after drying into a cup body, and cover the cup body with a sealing layer, so that the dry contact lens is placed in a sealed space formed by the cup body and the sealing layer, which does not contain any liquid. A sterilization step: performing a dry-film sterilization operation on the dry contact lenses placed within the sealed space; and A wetting step: Tear open the sealing layer from the cup body to form an opening, and inject a wetting liquid into the cup body through the opening, so that the dry contact lens is soaked in the wetting liquid for a preset period of time to form a wet contact lens suitable for wearing in the human eye, which has a second water content greater than the first water content.

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

3. The contact lens forming method according to claim 2, characterized in that, The wetting solution has an osmotic pressure between 250 mOsmol and 380 mOsmol, and a pH value between 6.0 and 8.

0.

4. The contact lens forming method according to claim 2, characterized in that, The antioxidant ingredients include 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.

5. The contact lens forming method according to claim 2, characterized in that, The liquid sterilization operation is a sterile filtration operation, a radiation sterilization operation, or an ethylene oxide sterilization operation.

6. The contact lens forming method according to claim 1, characterized in that, In the pre-treatment step, the first moisture content of the dry contact lens after the drying process is between 0.001% and 20%; in the wetting step, the preset time period is at least 5 minutes, and the second moisture content of the wet contact lens is between 24% and 79%.

7. The contact lens forming method according to claim 1, characterized in that, The dry film sterilization process can be a radiation sterilization process, an ethylene oxide sterilization process, or a moist heat sterilization process.

8. A contact lens assembly, characterized in that, The contact lens assembly includes: A contact lens product, including: a cup of body; A dry contact lens is disposed within the cup body, the dry contact lens having a shape unsuitable for wearing in the human eye, and the dry contact lens having a first water content; and A sealing layer, detachably attached to the cup body, together forming a sealed space; wherein the sealed space contains the dry contact lens but does not contain any liquid; and A wetting solution dispenser having a wetting solution suitable for soaking the dry contact lenses; Wherein, after an opening is formed between the sealing layer of the contact lens product and at least one of the cups, the cups can receive the wetting fluid flowing from the wetting fluid supply through the opening, so that the dry contact lens is immersed in the wetting fluid to form a crack-free wet contact lens suitable for wearing in the human eye, which has a second water content greater than the first water content.

9. The contact lens assembly according to claim 8, characterized in that, 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. The contact lens assembly according to claim 8, characterized in that, 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. The contact lens assembly according to claim 8, characterized in that, The dry contact lens has an outer surface and an inner surface opposite to the outer surface, the outer surface of the dry contact lens facing the cup body, and the dry contact lens has a groove recessed from the outer surface; wherein, the wet contact lens does not have the groove.

12. The contact lens assembly according to claim 8, characterized in that, The edge of the dry contact lens has multiple curved segments, and the multiple curved segments have at least two different radii of curvature; wherein the edge of the wet contact lens is circular.

13. The contact lens assembly according to claim 8, characterized in that, The shape of the dry contact lens is fixed, while the shape of the wet contact lens is elastically deformable.

14. The contact lens assembly according to claim 8, characterized in that, The wetting solution has an osmotic pressure between 250 mOsmol and 380 mOsmol, and a pH value between 6.0 and 8.

0.

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

16. The contact lens assembly according to claim 15, characterized in that, The antioxidant ingredients include 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. The contact lens assembly according to claim 8, characterized in that, The contact lens assembly includes a plurality of the contact lens products, and the shapes of the dry contact lenses of the plurality of contact lens products include at least two that are different from each other, while the shapes of the plurality of wet contact lenses are the same.

18. A contact lens product, characterized in that, The contact lens products include: a cup of body; A dry contact lens is disposed within the cup body, the dry contact lens having a shape unsuitable for wearing in the human eye, and the dry contact lens having a first water content between 0.001% and 20%; and A sealing layer is detachably attached to the cup body to form a sealed space, wherein the dry contact lens is contained within the sealed space but no liquid is contained therein.

19. The contact lens product according to claim 18, characterized in that, The first water content of the dry contact lens is between 3% and 10%, and the shape of the dry contact lens is fixed; wherein the edge of the dry contact lens has multiple curved segments, and the multiple curved segments have at least two different radii of curvature.

20. The contact lens product according to claim 18, characterized in that, The first water content of the dry contact lens is between 3% and 10%, and the shape of the dry contact lens is fixed; wherein, the dry contact lens has an outer surface and an inner surface opposite to 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.

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