Contact lens assembly

Abstract

The utility model provides a contact lens assembly which can improve the prevention and control effect of myopia and the like. The contact lens assembly comprises a plurality of lenses used for the same eye, each lens is provided with a central correction area and a pattern area arranged around the central correction area, each central correction area has set focal power or zero focal power for correcting vision, and at least one of patterns and colors of the pattern areas among the lenses is different. The central correction areas of the plurality of lenses have the same focal power. By the adoption of the structure, due to the fact that the different pattern areas are arranged among the lenses, a wearer can wear the lenses orderly or disorderly in sequence, stimulation of different and variable light quantities or color vision or the combination of the light quantities and the color vision can be formed on eyes in sequence, generation of drug resistance can be restrained, and myopia and the like can be effectively prevented and controlled.

Description

Technical Field

[0001] This utility model relates to a contact lens assembly. Background Technology

[0002] Myopia has long been a problem that plagues people. With the widespread use of electronic products, the number of people suffering from myopia is increasing. Therefore, myopia prevention and control has become increasingly important in recent years. To prevent and control myopia, contact lenses such as orthokeratology lenses and defocusing lenses are often used. Utility Model Content

[0003] Current contact lenses used for myopia prevention and control provide fixed stimuli to various locations on the retina. Under the long-term influence of these fixed signals and color perception, the effective stimulation received by the human eye gradually weakens. In other words, the human eye develops "resistance" to the contrast sensitivity of light and color perception or to defocus signals, which is not conducive to myopia prevention and control and can easily lead to poor control effects for myopia and other conditions.

[0004] In view of this, the present invention provides a contact lens assembly that can improve the prevention and control of myopia and other conditions.

[0005] To achieve the above objectives, this utility model provides a contact lens assembly, including multiple lenses for the same eye. Each lens has a central correction area and a patterned area surrounding the central correction area. The central correction area has a set optical power for correcting visual acuity or 0 optical power. At least one of the patterns or colors of the patterned areas of the multiple lenses is different, and the optical power of the central correction areas of the multiple lenses is the same.

[0006] With the above structure, the different patterned areas between the multiple lenses allow the wearer to wear these lenses in an orderly or disordered manner, thereby creating different and varying stimuli of light or color, or a combination of both, to the eyes. This can inhibit the development of "drug resistance" and effectively prevent and control myopia and other conditions.

[0007] As one possible implementation, the multiple lenses employ patterned areas between adjacent lenses to generate non-overlapping stimulation to the retina.

[0008] As one possible implementation, the pattern area includes an entrance pupil pattern area surrounding the central correction area, or it not only has an entrance pupil pattern area but also an external pupil pattern area on its outer periphery, with the entrance pupil pattern areas being different among the plurality of lenses.

[0009] By setting different patterns in the pupil entrance area (the area covering the pupil) of the lens, different stimuli are generated, which can more effectively inhibit the formation of stimuli and improve the prevention and control of myopia and other conditions.

[0010] As one possible implementation, the inner diameter of the ingress pupil pattern area is smaller than the threshold size of the outer diameter of the human pupil in a constricted state. This ensures that even when the pupil shrinks due to strong light or other reasons, the light flux can still be regulated by the ingress pupil pattern area, thus effectively controlling myopia. The outer diameter of the extra-pupil pattern area is larger than the threshold size of the outer diameter of the human pupil in a dilated state. This ensures that even if the pupil dilates due to weak ambient light or other reasons, the outer edge of the pupil will not extend beyond the pattern area. This allows for controllable regulation of the light flux entering the retina and the intensity of transmission of different colors of light, effectively controlling the contrast or color sensitivity on the retina.

[0011] As one possible implementation, the inner diameter of the entrance pupil pattern area is less than 1 mm. This reliably ensures that even when the pupil shrinks due to strong light, the entrance pupil pattern area can still regulate the light flux, thus effectively controlling myopia. The outer diameter of the external pupil pattern area is greater than 8 mm. This ensures that even if the pupil dilates due to weak ambient light, the outer edge of the pupil does not extend beyond the pattern area. This allows for controllable regulation of the light flux entering the retina and the intensity of different colors of light transmitted, effectively controlling the contrast or color sensitivity on the retina.

[0012] As one possible implementation, the pattern area may also include an iris pattern area disposed around the periphery of the extra-pupil pattern area. This would improve aesthetics.

[0013] As one possible implementation, the entrance pupil pattern area, the external pupil pattern area, and the iris pattern area are connected to form a single unit.

[0014] As one possible implementation, the inner diameter of the entrance pupil pattern area is A, and the lens diameter is C, satisfying... ,

[0015] Wherein, the lens diameter C=12-16mm, k1 is a constant: 8-11, k2 is a constant: 0.2-0.8, preferably, C=13-14mm, k1=9-10, k2=0.4-0.6.

[0016] The above design can effectively prevent and control myopia and other conditions.

[0017] As a possible implementation, the inner diameter A of the entrance pupil pattern area and the lens diameter C satisfy: A:C = (0.2-0.8):(2.4-8.0).

[0018] The lens diameter C = 12-16 mm, preferably C = 13-14 mm, and A = (0.4-0.6) : (2.8-6.5).

[0019] The above design can effectively prevent and control myopia and other conditions.

[0020] As a possible implementation, the area formed by the inner diameter of the entrance pupil pattern region is S1 and the lens area is S2, satisfying... ,

[0021] Where c1 is a constant: 0.01-0.3, c2 is a constant: 0.04-0.64, preferably c1=0.035-0.15, c2=0.16-0.36.

[0022] The above design can effectively prevent and control myopia and other conditions.

[0023] As one possible implementation, the lens further includes a defocus zone surrounding the central correction zone, the optical power of the defocus zone being greater than or equal to that of the central correction zone, and the pattern area being disposed within the defocus zone. Alternatively, the entrance pupil pattern area is disposed within the defocus zone.

[0024] Using the methods described above can effectively prevent and control myopia and other conditions.

[0025] As one possible implementation, the pattern on the patterned area of ​​the lens is a symmetrical pattern or an asymmetrical pattern.

[0026] As one possible implementation, the patterns in the entrance pupil pattern area and the exit pupil pattern area on a single lens pattern area of ​​the contact lens may be the same or different patterns.

[0027] As one possible implementation, the colors and patterns of the patterned areas of the lenses are different, at least the colors and patterns of the patterned areas of adjacent individual lenses are different.

[0028] As one possible implementation, the constituent elements of the entrance pupil pattern area and the external pupil pattern area on the pattern area of ​​the lens may be the same or different.

[0029] As one possible implementation, the patterned areas of each lens are different colors, or at least the patterned areas of adjacent individual lenses are different colors.

[0030] As one possible implementation, the patterned areas of adjacent individual lenses have a significant color difference and cannot be similar colors; preferably, they are contrasting colors.

[0031] As one possible implementation, at least one of the constituent elements, shape, size, and color of the pattern area between adjacent lenses is different.

[0032] As one possible implementation, the patterned areas between adjacent lenses are different colors, and the lens color reduces the light transmission intensity of at least one or two of the three spectral ranges for recognizing cone cells, namely 420-460, 500-600nm, and 520-620nm.

[0033] As one possible implementation, the lens can be used in one of the following ways: daily, weekly, bi-monthly, monthly, quarterly, semi-annual, or annual disposable types, preferably daily.

[0034] As one possible implementation, the plurality of lenses may include 2-365 lenses or 2-7 lenses.

[0035] As one possible implementation, the inner diameters of the patterned areas between the multiple lenses are different.

[0036] Thus, the inner diameter of the pattern area on the lens worn by the user each day is different. For the same wearer, the inner diameter of the pattern area on the lens worn each day is different, so the light flux entering the retina is different each day. As a result, the contrast of the image formed by the lens on the retina is different, and thus the stimulation to the retina is different, thereby achieving myopia correction and delaying the progression of myopia.

[0037] As one possible implementation, the inner diameter of the patterned area between the multiple lenses shows a trend of gradually increasing, gradually decreasing, increasing first and then decreasing, or decreasing first and then increasing according to the wearing order.

[0038] In this way, when worn in this trend sequence, the contrast of the image formed by the lenses on the human retina changes in a trend, and the stimulation to the human retina also shows different patterns, which can improve the myopia correction effect and effectively delay the progression of myopia.

[0039] As one possible implementation, the multiple lenses may have different packaging or marking symbols.

[0040] As one possible implementation, the lens is provided with markings that correspond one-to-one with the patterned areas. For example, laser markings are provided on the edge of the contact lens, and these laser markings are in a certain order so that the wearer can wear the lens in that order.

[0041] As one possible implementation, the patterned area is a dot matrix pattern capable of generating light scattering, wherein the individual dots of the dot matrix among multiple lenses are the same but arranged differently; or, the individual dots are different but arranged the same; or, both the individual dots and the arrangement are different; or, the coverage of the dot matrix pattern on the lens is different.

[0042] As one possible implementation, the lens is a scleral contact lens or a corneal contact lens, wherein the corneal contact lens is a soft corneal contact lens, a rigid corneal contact lens, or a hybrid corneal contact lens, wherein the rigid corneal contact lens is a rigid non-permeable corneal contact lens, a rigid permeable corneal contact lens, or an orthokeratology lens.

[0043] The lens is preferably a colored contact lens.

[0044] As one possible implementation, the lens includes a first substrate and a second substrate, with the patterned area sandwiched between the first substrate and the second substrate.

[0045] This utility model also provides a method for selling a contact lens assembly, wherein the contact lens assembly is any of the contact lens assemblies described above. The method includes: obtaining a pupil size; determining the inner diameter of the pattern area of ​​the lens based on the pupil size, such that the inner diameter is smaller than the pupil size; and providing a lens having the inner diameter.

[0046] As one possible implementation, the pattern on the patterned area of ​​the lens is an asymmetrical pattern; the lens also includes a peripheral area located radially outside the patterned area and surrounding the patterned area, the peripheral area being provided with a self-rotating structure for automatically rotating the contact lens.

[0047] As one possible implementation, the self-rotating structure includes a tear channel disposed in the peripheral region, the tear channel being located on the front or rear surface of the contact lens, the tear channel extending radially along the contact lens, and the structure of the tear channel including at least one of the following:

[0048] The cross-sectional area or cross-sectional width of the tear channel gradually decreases from the first end to the second end of the tear channel;

[0049] At least one of the first and second ends of the tear channel forms a port at the edge of the contact lens;

[0050] The first and second ends of the tear channel are located at different positions in the circumferential direction of the contact lens;

[0051] The tear channel extends from the edge of the contact lens first toward the defocused area, and then toward the defocused area.

[0052] As one possible implementation, when the tear channel extends from the edge of the contact lens first toward the defocused area and then toward the defocused area, the structure of the tear channel includes at least one of the following:

[0053] The tear channel is V-shaped, C-shaped, or U-shaped;

[0054] The tear channel has opposing first and second sidewalls, both of which extend along the length of the tear channel; preferably, the first and second sidewalls have the same curvature, and the curvature of the first sidewall is greater than that of the second sidewall.

[0055] As one possible implementation, the self-rotating structure includes a plurality of tear channels, the tear channels comprising at least one of the following structures:

[0056] Multiple tear channels are arranged at circumferential intervals along the contact lens;

[0057] At least a portion of the tear channel is a groove-like structure disposed on the rear surface of the contact lens;

[0058] At least a portion of the tear channel is located inside the contact lens;

[0059] The cross-sectional area or cross-sectional width of the tear channel varies continuously or in stages along the length of the tear channel;

[0060] At least a portion of the tear channel extends radially along the contact lens;

[0061] At least a portion of the tear channel has a cross-sectional area or cross-sectional width that gradually decreases in the radial inward direction along the contact mirror. Attached Figure Description

[0062] Figure 1 This is a frontal view of a single lens in a contact lens assembly according to one embodiment;

[0063] Figure 2 This is a frontal view of a single lens in a contact lens assembly according to one embodiment;

[0064] Figure 3 This is a frontal structural schematic diagram of a single lens in a contact lens assembly according to an embodiment, wherein the lens has an iris pattern area;

[0065] Figure 4 This is a front view schematic diagram of a single lens in a contact lens assembly according to an embodiment, in which the lens has an edge pattern area;

[0066] Figures 5a-5g This is a front view structural schematic diagram of the lenses of a contact lens assembly according to an embodiment, which have the same pattern (symmetrical pattern) but different colors;

[0067] Figures 6a-6cThis is a front view schematic diagram of the lens structure of each lens of a contact lens assembly according to an embodiment, which have the same pattern (not a completely symmetrical pattern) but different colors;

[0068] Figures 7a-7d This is a frontal structural schematic diagram of the lenses of a contact lens assembly according to an embodiment, which have the same pattern (symmetrical pattern), different colors, and different inner diameters of the entrance pupil pattern area;

[0069] Figures 8a-8c This is a frontal structural schematic diagram of the lenses of a contact lens assembly according to an embodiment, which have the same pattern (symmetrical pattern) but different colors (reduced recognition spectral range of three types of cone cells).

[0070] Figures 9a-9g This is a front view structural diagram of each lens of a contact lens assembly according to an embodiment, wherein, Figures 9a-9d The lenses shown have different patterns (symmetrical patterns) but the same color. Figures 9e-9g The pattern density of the lenses shown continuously increases while the colors remain the same.

[0071] Figures 10a-10c This is a front view structural schematic diagram of the lenses of a contact lens assembly according to an embodiment, wherein the lenses have different patterns (not completely symmetrical patterns) but the same color;

[0072] Figures 11a-11j This is a front view structural diagram of each lens of a contact lens assembly according to an embodiment, wherein, Figures 11a-11g The lenses shown have different patterns (symmetrical patterns) and different colors. Figures 11h-11j The lenses shown have different patterns (not complete patterns) and different colors;

[0073] Figure 12a This is a schematic diagram of the structure of a single lens of a contact lens assembly according to one embodiment;

[0074] Figure 12b This is a schematic diagram of the structure of a single lens of a contact lens assembly according to an embodiment, wherein the light scattering dot pattern gradually intensifies towards the radially outer layer;

[0075] Figure 12c This is a schematic diagram of the structure of a single lens of a contact lens assembly according to an embodiment, wherein the light scattering dot pattern gradually weakens towards the outer periphery;

[0076] Figure 13a This is a schematic diagram of the structure of a single lens of a contact lens assembly according to an embodiment, wherein the patterned area covers the entire iris area;

[0077] Figure 13bThis is a schematic diagram of the structure of a single lens of a contact lens assembly according to an embodiment, wherein the patterned area extends into the peripheral area;

[0078] Figure 14 This is one of the cross-sectional structural schematic diagrams of the contact mirror provided in a specific embodiment of this utility model;

[0079] Figure 15 yes Figure 14 A partially enlarged structural diagram;

[0080] Figure 16 This is the second cross-sectional structural schematic diagram of the contact mirror provided in a specific embodiment of this utility model;

[0081] Figure 17 yes Figure 16 A partially enlarged structural diagram;

[0082] Figure 18 This is one of the main view structural schematic diagrams of the contact lens provided in a specific embodiment of this utility model;

[0083] Figure 19 yes Figure 18 A schematic diagram of the tear channel structure in the eye;

[0084] Figure 20 This is the second schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0085] Figure 21 This is the third schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0086] Figure 22 This is the fourth schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0087] Figure 23 This is the fifth schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0088] Figure 24 This is the sixth schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0089] Figure 25 This is the seventh schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0090] Figure 26 yes Figure 25 A schematic diagram of the tear channel structure in the eye;

[0091] Figure 27 This is the eighth schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0092] Figure 28 This is the ninth schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0093] Figure 29 This is the tenth schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0094] Figure 30 This is the eleventh schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0095] Figure 31 This is the twelfth schematic diagram of the main view structure of the contact mirror provided in a specific embodiment of this utility model;

[0096] Figure 32 This is one of the structural schematic diagrams of the tear channel provided in a specific embodiment of this utility model;

[0097] Figure 33 This is the second schematic diagram of the tear channel provided in a specific embodiment of this utility model;

[0098] Figure 34 This is the third schematic diagram of the tear channel provided in a specific embodiment of this utility model;

[0099] Figure 35 This is the fourth schematic diagram of the tear channel provided in a specific embodiment of this utility model.

[0100] Explanation of reference numerals in the attached figures

[0101] 10-Lens; 1-Central correction zone; 2-Pattern zone; 21-Entrance pupil pattern zone; 22-External pupil pattern zone; 23-Iris pattern zone; 3-Peripheral zone. Detailed Implementation

[0102] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0103] Implementation Method 1

[0104] Figure 1 This is a frontal view schematic diagram of a single lens in a contact lens assembly according to an embodiment. The lens 10 is generally circular when viewed from the front and has a central correction area 1, a patterned area 2 located on the outer periphery of the central correction area 1, and a peripheral area 3 located on the outer periphery of the patterned area 2. The central correction area 1 has a set optical power (prescription optical power) or 0 optical power for correcting visual acuity.

[0105] The "pattern area" refers to the area with a pattern, which can be various graphics, patterns, or patterns composed of dot matrix (DOT), and the pattern can be black and white or colored. By setting the pattern area 2, the amount of light entering the human eye can be controlled, thereby stimulating the human eye to help prevent and control myopia.

[0106] As mentioned above, Figure 1 The image shows one lens 10 in a contact lens assembly; however, a contact lens assembly may include multiple lenses 10 for the same eye, each lens 10 having the same set power (prescription power) or 0 power for vision correction. Additionally, as different product forms, contact lens assemblies may also include other lenses for different eyes. For ease of explanation, only multiple lenses 10 for the same eye will be described below.

[0107] In this embodiment, the lenses 10 have different pattern areas 2. Here, different pattern areas 2 means that at least one of the patterns and colors of the pattern areas 2 are different. More specifically, at least one of the constituent elements, shape, size, and color of the pattern may be different. The constituent elements of the pattern are, for example, dots that form a dot matrix, specifically circular dots, polygonal dots (triangular dots, square dots, rhomboid dots, etc.), star-shaped dots, etc., or for example, shadow lines, fish scale lines, array symbols, meshes, or grids. By making the lenses 10 have different pattern areas 2, the wearer can wear these lenses 10 in an orderly or disordered manner, thereby creating different and varying stimuli of light or color perception, or a combination of both, to the eyes, thereby suppressing the development of "drug resistance" and effectively controlling myopia and other conditions.

[0108] In this embodiment, the pattern area 2 includes an entrance pupil pattern area 21, which covers a portion of the pupil of the human eye, and during lens wear, a portion of incident light continuously passes through the entrance pupil pattern area 21 and enters the pupil. For ease of explanation, the boundary of the pupil 20 is indicated by a thick black line in the figure (hereinafter the same). Figure 1 As shown, the pupil pattern area 21 is configured such that when the lens 10 is worn, it extends inward to the inner periphery and enters the pupil area, thereby covering part of the pupil. In this way, the amount of light entering the human eye retina can be effectively controlled through the pupil pattern area 21, thereby controlling the contrast on the human eye retina and thus effectively achieving myopia prevention and control.

[0109] The inner diameter of the pattern area 21 entering the pupil (i.e. the diameter of the unpatterned center correction area 1) is preferably less than 1 mm. In this way, even if the pupil becomes smaller due to abnormal conditions such as emotional changes or strong light, the pattern area 2 can still enter the pupil, thereby reliably ensuring the control effect of myopia and other diseases.

[0110] In addition, in this embodiment, the pattern area 2 also includes an extra-pupil pattern area 22, which is located on the outer periphery of the entrance pupil pattern area 21. Its pattern or color may be the same as or different from that of the entrance pupil pattern area 21. Furthermore, in this embodiment, the extra-pupil pattern area 22 and the entrance pupil pattern area 21 are connected and transitioned (i.e., continuous).

[0111] The outer diameter of the extra-pupil pattern area 22 is preferably greater than 8mm. In this way, even if the pupil dilates under abnormal conditions, such as in a dim light environment, the pattern area 2 can still enter the pupil, thereby reliably ensuring the prevention and control of myopia.

[0112] Furthermore, in this embodiment, the lens 10 includes a defocus area 14 located on the periphery of the central correction area. The optical power of the defocus area 14 is greater than or equal to that of the central correction area 1, and is used to form defocus on the retina, thereby effectively controlling myopia and other conditions. In this embodiment, a pattern area 2 is provided on the defocus area 14.

[0113] In this embodiment, the inner diameter of the defocus area 14 is the same as the inner diameter of the pattern area 2, so that the defocus area 14 includes the area entering the pupil, thus enabling more effective control of myopia and other conditions. However, the present invention is not limited to this; the inner diameter of the defocus area 14 may be different from the inner diameter of the pattern area 2, or the lens 10 may not have a defocus area 14, that is, the lens 10 may not be a defocus lens.

[0114] When multiple lenses 10 are worn in an orderly manner, to facilitate differentiation by the wearer, the packaging of the multiple lenses 10 can be different, for example, by setting a unique mark on the packaging that corresponds to the pattern area. Alternatively, the mark can be set on the lens 10 itself to facilitate differentiation by the wearer. For example, a laser marking is provided on the outer area 3 of the contact lens, and the laser marking is in a certain order so that the wearer can wear the lenses in that order.

[0115] Reference Figure 1 In this embodiment, the diameter of the extra-pupil pattern area 22 is more than 1 / 2 of the diameter of the lens 10.

[0116] As lens 10 (contact lens), a soft corneal contact lens (i.e., a contact lens) is preferred, and a colored contact lens is more preferred. Alternatively, it can be a rigid corneal contact lens or a hybrid corneal contact lens, wherein the rigid corneal contact lens can be a rigid non-permeable corneal contact lens, a rigid permeable corneal contact lens, or an orthokeratology lens. Additionally, it can be a scleral contact lens.

[0117] In addition, Figure 1 In the central correction area 1, it is roughly circular; however, the present invention is not limited to this, and it may also be flattened or circular.

[0118] Implementation Method 2

[0119] Figure 2 This is a frontal view of a single lens in a contact lens assembly according to one embodiment.

[0120] Figure 2 The main difference between the illustrated embodiment and the above-described embodiment is that, in this embodiment, the outer peripheral region 3 is larger, and the diameter of the extra-pupil pattern region 22 is less than half the diameter of the lens 10. Other structures are basically the same as in the above-described embodiment, and their descriptions are simplified or omitted here.

[0121] In addition, the inner diameter of the ingress pattern area 21 of the lens 10 is set to be smaller than the outer diameter threshold of the human eye pupil in the constricted state (usually 1 mm), and the outer diameter of the extra-pupil pattern area 22 is larger than the outer diameter threshold of the human eye pupil in the enlarged state (usually 8 mm). This ensures that after the human eye wears the lens, the inner diameter of the ingress pattern area 21 is located inside the pupil in the normal state, thus making the pattern area 2 located inside the pupil in the normal state. The outer diameter of the extra-pupil pattern area 22 is set mainly considering the different pupil sizes of human eyes, or the pupil size of the same human eye in the constricted state under different light intensities, so that the outer diameter of the extra-pupil pattern area 22 satisfies that even when the human eye pupil is in the maximum state, the outer edge of the pupil does not exceed the pattern area 2. This allows for the controllable regulation of the light flux entering the human retina and the transmittance of different colors of light, effectively controlling the contrast or color sensitivity on the human retina. Furthermore, by combining multiple sets of lenses with at least one different pattern or color in the pattern area of ​​adjacent individual lenses, different stimuli are produced to the retina, reducing "drug resistance" and improving the effectiveness of myopia prevention and control.

[0122] Implementation Method 3

[0123] Figure 3 This is a frontal structural diagram of a single lens in a contact lens assembly according to one embodiment. The main difference between this embodiment and the embodiments described above is that, as... Figure 3 As shown, pattern area 2 also has an iris pattern area 23, which completely covers the iris. Furthermore, the pattern of this iris pattern area 23 differs from the other parts of pattern area 2, and can also be described as different from the patterns of the entrance pupil pattern area 21 and the external pupil pattern area 22. The iris pattern area 23 effectively enhances the aesthetics.

[0124] In other embodiments, the pattern of the iris pattern area 23 may also be the same as that of the entrance pupil pattern area 21 and / or the external pupil pattern area 22.

[0125] In addition, in this embodiment, the lens 10 includes a defocus area surrounding the central correction area 1. The optical power of the defocus area is greater than or equal to that of the central correction area. The defocus area is at least the area between the central correction area 1 and the peripheral area 3, i.e., the area corresponding to the pattern area 2. It can also be understood that the entrance pupil pattern area 21, the external pupil pattern area 22 and the iris pattern area 23 are set in the defocus area.

[0126] In addition, in this embodiment, the entrance pupil pattern area 21, the external pupil pattern area 22 and the iris pattern area 23 are connected to form a whole.

[0127] Implementation Method 4

[0128] Figure 4 This is a frontal view of a single lens in a contact lens assembly according to one embodiment. The main difference between this embodiment and the embodiments described above is that, as... Figure 4 As shown, the pattern area 2 includes an edge pattern area 24, which is located on the outer periphery of the iris pattern area 23 and has a pattern different from that of the iris pattern area 23.

[0129] The edge pattern area 24 is the area that extends beyond the iris of the human eye. The lens 10 forms the entrance pupil pattern area 21, the external pupil pattern area 22, the iris pattern area 23, and the edge pattern area 24, which are arranged sequentially from the inside to the outside along the radius of the lens and are connected to each other to form an integrated pattern area 2.

[0130] In summary, in this utility model, the pattern area 2 can have a uniform pattern throughout the entire area, or it can be composed of multiple sub-pattern areas with different patterns. The number of each sub-pattern area can be two or more. In addition, the patterns of each pattern area can be completely different or can be arranged alternately.

[0131] Furthermore, the arrangement of the sub-pattern areas is not limited to radial arrangement; they can also be arranged circumferentially. That is, in the above description, pattern area 2 (entrance pupil pattern area 21), external pupil pattern area 22, and iris pattern... Figure 23 The edge pattern area 24 is a symmetrical pattern; however, it can also be configured as an asymmetrical pattern. Entrance pupil pattern area 21, external pupil pattern area 22, iris pattern. Figure 23 The edge pattern area 24 may include multiple different pattern areas arranged in the circumferential or radial direction, and the intersection of these different pattern areas may be regular or irregular.

[0132] Implementation Method 5

[0133] Based on any of the above embodiments, the inner diameter A of the entrance pupil pattern area 21 and the lens diameter C are designed to satisfy:

[0134]

[0135] The lens diameter C is 12-16mm;

[0136] The diameter of the human eye pupil B = C - k1 (k1 is a constant: 8-11);

[0137] The inner diameter of the entrance pupil pattern area is A = k2B (k2 is a constant: 0.2-0.8);

[0138] The following lists the design dimensions of the inner diameter A of the pupil pattern area, the diameter B of the human pupil, and the diameter C of the lens.

[0139] Referring to the table below, for items 1-4, the minimum lens diameter is 12mm; for items 5-8, the median lens diameter is 16mm; and for items 9-12, the maximum lens diameter is 14mm. The minimum and maximum values ​​of k1 (8 and 11) and k2 (0.2 and 0.8) are selected for size design, respectively. For items 13-18 and 19-27, the minimum, median, and maximum lens diameters are 12mm, 14mm, and 16mm, respectively. The median values ​​of k2 (0.4) and k1 (9.5) are selected for size design, respectively. The calculated inner diameter A of the pupil pattern area and the pupil diameter B both satisfy the condition that the inner diameter A of the pupil pattern area is less than the variation size of the pupil under abnormal conditions (1-8mm). This ensures that the pupil pattern area can reliably be located within the pupil under abnormal conditions.

[0140] Serial numbers 28-45 are designed based on the endpoints and intermediate values ​​of the preferred parameters “C= 13-14mm, k1=9-10, k2=0.4-0.6”. The inner diameter A of the pupil pattern area is calculated to be less than the change size of the human eye pupil under normal conditions, i.e., 2-5mm, to ensure that the pupil pattern area can be reliably located inside the pupil under normal conditions.

[0141] Table 1. Lens Examples (Implementation Method 5)

[0142]

[0143] Implementation Method Six

[0144] Based on the settings of any of the embodiments one to four, the inner diameter A of the pupil pattern area 21, the diameter B of the human eye pupil, and the lens diameter C are designed to satisfy:

[0145]

[0146] C = 12-16mm.

[0147] The following lists some of the design dimensions of the inner diameter of the pupil pattern area: A) human eye pupil diameter; B) lens diameter; C) design dimensions.

[0148] For examples 1-27, the minimum and maximum lens diameters of 12mm and 16mm are selected respectively. Based on the minimum value of A (0.2), the median value of A (0.5), and the maximum value of C (2.4), the minimum value of C (5.2), and the maximum value of C (8.0) within the A:B:C ratio range, the inner diameter A of the pupil pattern area and the diameter B of the human pupil are calculated. Both satisfy that the inner diameter A of the pupil pattern area is less than the variation size of the human pupil under abnormal conditions, i.e., 1-8mm, to ensure that the pupil pattern area can be reliably located inside the pupil under abnormal conditions.

[0149] Serial numbers 28-45 are designed based on the endpoints and intermediate values ​​of the preferred parameters “C = 13-14mm, A:B:C = (0.4-0.6):1: (2.8-6.5)”. The inner diameter A of the pupil pattern area and the diameter B of the human eye pupil are calculated. The inner diameter A of the pupil pattern area is less than the change size of the human eye pupil under normal conditions, i.e., 2-5mm, to ensure that the pupil pattern area can be reliably located inside the pupil under normal conditions.

[0150] Table 2. Lens Examples (Implementation Method Six)

[0151]

[0152] Implementation Method Seven

[0153] Based on any one of the embodiments one to four, with the area formed by the inner diameter of the pupil pattern area being S1, the area of ​​the human pupil being S3, and the lens area being S2, the design satisfies:

[0154] ,

[0155] Where c1 is a constant: 0.01-0.3, c2 is a constant: 0.04-0.64, and the lens diameter is 12-16mm.

[0156] The following lists the area S formed by the inner diameter of the pupil pattern area (intra-pupil pattern area), the human eye pupil area S3, and the lens area S2, and the corresponding diameter design dimensions:

[0157] For numbers 1-12, 13-24, and 25-36, the minimum, intermediate, and maximum lens diameters of 12mm, 14mm, and 16mm, respectively, are selected as examples. Based on the minimum value of S1 (0.01), the intermediate value of S2 (0.15), and the maximum value of S3 (0.3), the dimensions are calculated. The inner diameter of the entrance pupil pattern area is less than the variation size of the human eye pupil under abnormal conditions, i.e., 1-8mm, ensuring that the entrance pupil pattern area can be reliably located inside the pupil under abnormal conditions.

[0158] Serial numbers 37-54 are designed based on the endpoints and midpoints of the preferred parameters "lens diameter = 13-14mm, c1 = 0.035-0.15, c2 = 0.16-0.36". The inner diameter A and diameter B of the pupil pattern area are calculated. The inner diameter A of the pupil pattern area is less than the change size of the human pupil under normal conditions, i.e., 2-5mm, to ensure that the pupil pattern area can be reliably located within the pupil under abnormal conditions.

[0159] Table 3. Lens Examples (Implementation Method Seven)

[0160]

[0161]

[0162]

[0163] Implementation Method Eight

[0164] Based on the above implementation method, the main idea of ​​this implementation method is to make the pattern area of ​​each lens have different colors. As long as the colors of the lenses worn one after another are different, the light transmission intensity can be controlled by different colors, thereby forming different stimuli on the retina, which is conducive to improving the myopia prevention and control effect. Figures 5a-5g This diagram illustrates that the patterned areas of the seven lenses in the contact lens assembly according to this embodiment have the same (symmetrical) pattern but different colors. The patterns in these areas are alternating colored and black-and-white grids. Furthermore, the entrance pupil patterned area 21, the external pupil patterned area 22, and the iris patterned area 23 have the same pattern and color. As another embodiment, the same pattern can also be as follows: Figures 6a-6c The asymmetrical pattern shown, such as Figures 6a-6c As shown, pattern area 2 includes a grid-like pattern in the left semicircle and an irregular dot matrix pattern in the right semicircle, and the dots that form the constituent elements are round dots.

[0165] In addition, the patterned areas of each lens 10 can be colored, and the colored parts can be opaque or semi-transparent. This not only increases the stimulation effect and improves the control effect, but also enhances the aesthetics.

[0166] In this embodiment, the lenses 10 are provided with markings that correspond one-to-one with the pattern areas. These lenses 10 are used for the same eye. When wearing them, they can be arbitrarily combined according to the principle that the patterns of adjacent lenses 10 are different. Alternatively, they can be worn in sequence according to the markings corresponding to the given wearing order. The wearing time interval can be daily, or it can be changed periodically or irregularly at other time intervals to form dynamic color changes. This can produce different stimuli to the peripheral visual field of the wearer's retina, inhibit the eye from developing "drug resistance", and improve the prevention and control of myopia and other conditions.

[0167] In this embodiment, the lens 10 is a contact lens. The lens is a daily disposable, weekly disposable, bi-monthly disposable, monthly disposable, quarterly disposable, semi-annual disposable, or annual disposable lens. The number of lenses 10 in a set (the plurality of lenses) can be 2-365 or 2-7.

[0168] Furthermore, the contact lens of this utility model is not limited to this. Specifically, the contact lens of this utility model can be a scleral contact lens or a corneal contact lens. The corneal contact lens can be a soft corneal contact lens, a rigid corneal contact lens, or a hybrid corneal contact lens. Among them, the rigid corneal contact lens can be a rigid non-permeable corneal contact lens, a rigid permeable corneal contact lens, or an orthokeratology lens.

[0169] Furthermore, in this embodiment, the patterned area of ​​the lens is formed by ink printing, with the ink (patterned area) sandwiched between two lens materials (substrate, with a shape consistent with the shape of lens 10, and the two superimposed), thereby preventing ink (pigment) penetration and adverse effects on the eyeball. Moreover, the method of forming the patterned area is not limited to this; for example, it can also be formed by laser etching or other methods.

[0170] In this embodiment, the central correction area 1 is circular, and the pattern area and defocus area are annular (an example of annularity). However, the present invention is not limited to this; for example, the central correction area 1 may also be elliptical, and the pattern area and defocus area may be an elliptical annular (an example of annularity). In addition, when the present invention is applied to other contact lenses, more peripheral areas 3 may be designed.

[0171] In addition, the peripheral myopia defocus can be designed in the pattern area according to the wearer's central correction prescription refractive power. The difference in refractive power between the peripheral defocus area and the central correction area can be set between 0.5 and 10.0D, such as 3D, 5D and 8D.

[0172] Implementation Method Nine

[0173] Reference Figures 7a-7dBased on the above embodiments, the main concept of this embodiment is that the inner diameter of the pattern area of ​​a single lens (i.e., the diameter of the central correction area) is designed to be different, so that the inner diameter of the pattern area of ​​the worn single lens is different (i.e., the inner diameter of the pattern area of ​​the lens worn by the user at different times is different). For the same wearer, because the inner diameter of the pattern area of ​​the lens worn at different times is different, the pattern area entering the pupil is different relative to the pupil every day, so the light flux entering the retina of the human eye is different, and thus the contrast formed by the image formed by the lens on the human eye's retina is different, which in turn creates different stimulation to the human eye's retina, thereby achieving myopia correction and delaying the progression of myopia. In addition, Figure 7- Figure 7d The pattern shown is a regular dot matrix pattern, and the dots that form the composition are round dots.

[0174] Furthermore, the inner diameter of the patterned area of ​​the lens (i.e., the diameter of the central correction area) is designed with a gradually increasing, gradually decreasing, increasing-then-decreasing, or decreasing-then-increasing trend, allowing the wearer to follow this trend sequentially. Wearing the lens in this sequence results in a trend-changing contrast in the image formed on the retina, leading to different patterns of stimulation to the retina, which can improve myopia correction and effectively slow down myopia progression.

[0175] Furthermore, with different inner diameter designs, the pattern area can present at least one different pattern and color. More specifically, the patterns and colors of the inner pupil pattern area, outer pupil pattern area, iris pattern area, and peripheral pattern area can all be designed differently.

[0176] The design incorporates elements such as gradually increasing inner diameter of the lens entering the pupil, individual lenses with the same pattern but different colors, identical patterns and colors in the entering pupil and outer pupil pattern areas, and different patterns but the same color in the entering pupil, outer pupil, and iris pattern areas. Figures 7a-7b In this implementation, considering a pupil diameter of 4mm, the inner diameter of the ingress pattern area is set to 20%, 40%, 60%, and 80% of the pupil diameter, i.e., an increase of 0.8mm, 1.6mm, 2.4mm, and 3.6mm, respectively. Correspondingly, the outer pattern area is set to 180%, 160%, 140%, and 110% of the pupil diameter, i.e., 7.2mm, 6.4mm, 5.6mm, and 4.4mm, respectively.

[0177] Preferably, the colors of the patterned areas between adjacent lenses (e.g., daily disposable lenses, where the lenses worn today and tomorrow are adjacent lenses) are not similar colors, but rather contrasting colors, such as red, green, and blue.

[0178] Implementation Method Ten

[0179] Unlike embodiment nine, the colors of the patterned areas between the lenses are set differently, and the lenses are configured to irregularly reduce (filter, reduce light transmission intensity) at least one or two wavelength ranges (of light) within the three cone cell recognition spectral ranges of 420-460 nm, 500-600 nm, and 520-620 nm. Figures 8a-8c This refers to three different colored lenses that alternately reduce the light transmission intensity of two wavelengths: 420-460 nm (blue), 500-600 nm (green), and 520-620 nm (red). The pattern area is designed as asymmetrical blue, red, and green lenses with the same pattern but different colors (for the blue pattern, it reduces the light of both red and green wavelengths; for the red pattern, it reduces the light of both blue and green wavelengths; and for the green pattern, it reduces the light of both red and blue wavelengths). Figures 8a-8c The image shows pattern areas 2, which are blue, red, and green respectively.

[0180] Implementation Method Eleven:

[0181] Unlike embodiment nine, this embodiment uses a component composed of lenses with the same color in the patterned area but different patterns, which can be as follows: Figures 9a-9d The symmetrical pattern shown (point symmetry + axial symmetry) includes, Figure 9a The pattern shown is a diamond grid. Figure 9b The image shown is a shaded line pattern. Figure 9c The image shown is a bold, shaded pattern. Figure 9d What is shown is a brick-grid pattern; or as... Figures 9e-9g The pattern shown is symmetrical, but the pattern density of each lens gradually changes (i.e., the coverage gradually changes). It could also be like... Figures 10a-10c The pattern shown is not perfectly symmetrical. Figures 9a-9d The lens shown Figures 9e-9g The lenses shown and Figures 10a-10c The three lenses shown can belong to the same group of lenses, or they can be three independent groups, or any two of the three lenses can form a group.

[0182] Implementation Method Twelve:

[0183] Unlike embodiment nine, this embodiment uses a component composed of lenses with different colors and patterns in the patterned areas, which can be as follows: Figures 11a-11f The perfectly symmetrical pattern shown, in which, Figure 11c It shows a pattern resembling fish scales. Figure 11d It shows a mesh-like pattern. Figure 11e The pattern shown is a grid; it could also be... Figure 11g The illustrated axisymmetric pattern, wherein, Figure 11g The image shows a pattern of multiple short lines arranged in multiple rows; it could also be like... Figures 11h-11j Non-perfectly symmetrical patterns (non-centrally symmetrical).

[0184] Implementation Method Thirteen:

[0185] Based on the above embodiments, the constituent elements of the pattern area are dot patterns capable of generating light scattering, causing light passing through the lens to scatter and reducing the contrast of the image on the retina. Individual dot patterns on lenses within the same component are identical but arranged differently; or, individual dot patterns are different but arranged the same; or, both individual dot patterns and arrangements are different, producing completely different contrast-reduction effects, further improving myopia control. (Refer to...) Figure 12a Enlarged views A1, A2, and A3 show three examples of local areas A in the light scattering pattern region. In A1, there are light scattering dot patterns with the same individual dot pattern but different arrangement. In A2, there are patterns with different individual dot patterns but the same arrangement. In A3, there are patterns with both different individual dot patterns and different arrangement.

[0186] like Figure 12a and Figure 12b As shown, the density of the lattice pattern that produces light scattering can also gradually increase or decrease from the center of the lens outwards along the radial direction.

[0187] Implementation Method Fourteen:

[0188] Based on the above embodiments, the patterned area of ​​each lens in the contact lens assembly can be configured such that the constituent elements overlap and continuously extend into the iris area of ​​the human eye. For example... Figure 13a As shown, the entrance pupil pattern area and the external pupil pattern area are composed of petals (parts of them). The iris pattern area is mainly composed of multiple overlapping and circumferentially arranged circles, and also includes the outer periphery of the petals, which overlaps with the multiple circular patterns. Furthermore, the color of the pattern in this figure is nearly orange-yellow, but not uniform; rather, it exhibits a gradient. Alternatively, a uniform color can be used in other embodiments.

[0189] In addition, such as Figure 13b As shown, the pattern area consists of multiple rings (3 rings in this image) of water droplet patterns, with a color that is almost light green but has a gradient. In this pattern area, the inner periphery of the entrance pupil pattern area consists of multiple circumferentially arranged water droplet tips, while the outer periphery extends to the edge of the lens.

[0190] Implementation Method Fifteen

[0191] This invention also provides design methods, manufacturing methods, and sales methods for contact lens assemblies, through which the contact lens assemblies described in the above embodiments can be obtained.

[0192] The design and manufacturing methods include the following:

[0193] To obtain the size of a human eye pupil, one can use a computer (or not) by scanning an electronic tag or manually entering the pupil size. The pupil size can include the diameter of the pupil in its normal state, or it can further include the upper limit and / or lower limit of the pupil size.

[0194] The inner diameter of the patterned area of ​​the lens is determined based on the pupil size, and this inner diameter is made smaller than the pupil size.

[0195] Determine (design method, manufacturing method, sales method), process (manufacturing method), and supply (sales method) a lens having the stated inner diameter size.

[0196] In addition, this utility model also provides a method of using a contact lens assembly, which is the contact lens assembly described above, wherein the wearer wears the lenses in the order indicated by the marking symbols or the order indicated by adjacent markings.

[0197] In another embodiment of this utility model, based on the asymmetrical pattern on the patterned area of ​​the lens, the lens further includes a peripheral area located radially outside the patterned area and surrounding the patterned area, the peripheral area being provided with a self-rotating structure for automatically rotating the contact lens. Figure 14 and Figure 15 As shown, the contact lens has a central region 11 (equivalent to the combination of the central correction region and the patterned region in the aforementioned embodiments) and a peripheral region 12, the central region 11 adopting any of the structures described above. The peripheral region 12 is located on the outer periphery of the central region 11, and the peripheral region 12 is annular. The contact lens has a posterior surface 9 facing the cornea of ​​the human eye (…). Figure 14 The lower surface of the contact lens) and the anterior surface facing away from the human cornea 8 ( Figure 14 The upper surface of the contact lens. The contact lens has a tear channel 6 (shown by the shaded line in the figure). The tear channel 6 extends radially along the rear surface 9 or the front surface 8 of the contact lens, allowing tears to flow into the tear channel 6 from one end near the geometric center. Under the action of fluid dynamics, a force is generated on the contact lens along the direction of the front surface 8 or the rear surface 9, causing the contact lens to rotate. This allows the dynamic defocusing performance of the contact lens to be better utilized, thereby improving the myopia control effect.

[0198] With this structure, when wearing contact lenses, tears usually flow from the edge of the contact lens to its geometric center. This flow is based on natural physiological function and is a continuous process, not entirely dependent on blinking. Therefore, whether it is day or night, whether the wearer is working, studying, or sleeping (including any rest time such as lunch break), the flow of tears can be used to rotate the contact lens, thereby improving the applicability of contact lens technology.

[0199] Furthermore, the force generated by tears is gentler than that of the eyelids, thus allowing the contact lens to rotate more stably and slowly, improving the safety of wearing it.

[0200] Furthermore, the cross-sectional area or width of the tear channel 6 can gradually change from one end to the other, thereby promoting hydrodynamics and enabling the contact lens to rotate more reliably and stably. The dimension of the tear channel 6 extending along the rear surface 9 or the front surface 8 is called the length, the dimension in the thickness direction of the contact lens is called the height, and the dimension in the direction perpendicular to the length direction of the tear channel 6 is called the width.

[0201] In this embodiment, the tear channel 6 has an opening on its rear surface 9, thereby forming a groove-like structure. Tear fluid flows into the groove-like structure through the opening and along the groove-like structure. By forming a groove-like structure with an opening, the thickness of the contact lens can be effectively utilized to increase the volume of the tear channel 6, enhance the hydrodynamic effect, and enable the contact lens to rotate reliably. At the same time, this design also facilitates the processing of the contact lens.

[0202] The radially outer end of the tear channel 6 is located at the edge of the contact lens. A port 7, communicating with the tear channel 6, is located at the edge of the contact lens at the end of the tear channel 6, allowing tears to flow into the tear channel 6 from the port 7, thus generating a large rotational torque. It should be noted that the tear channel 6 is located in the peripheral region 12 of the central region 11, which helps to suppress any adverse effects on the optical properties of the central region 11.

[0203] like Figure 14 and Figure 15 As shown, the tear channel 6 extends from the radially outer side (outer peripheral side) to the radially inner side (inner peripheral side or central side), which can accommodate the radial flow of tears and enable the tear flow to reliably exert force on the contact lens.

[0204] Because the central zone 11 has asymmetrical defocus optical characteristics, and the contact lens rotates under the action of its self-rotating structure, the myopia defocus signal changes in the 360-degree direction (circumferential direction). This causes variations in the stimulation received at different locations on the retina, preventing the effective stimulation received by the human eye from gradually weakening under the long-term effect of a fixed signal (that is, preventing the human eye from developing "drug resistance" to the defocus signal). With this design, the contact lens itself can slowly rotate under the action of tears. In this way, the defocus signal stimulation received at different locations on the retina will change cyclically with the rotation of the contact lens, thereby achieving a long-term myopia control effect and breaking "drug resistance".

[0205] It should be noted that the front-to-back direction can also be referred to as the optical axis direction (the direction perpendicular to the axis of the front surface 8 or rear surface 9 at the center of the contact lens). In this embodiment, the central area 11 is circular, but its shape is not limited to this; it can also be elliptical or other shapes. To promote tear flow, a through-hole penetrating the contact lens in the thickness direction can be provided to improve tear flow, for example, a through-hole can be provided in the central area 11 or the peripheral area 12.

[0206] like Figure 14 and Figure 15 As shown, in this embodiment, the contact lens is a daily wear contact lens, such as a regular contact lens. The contact lens is provided with two tear channels 6. Of course, the number of tear channels 6 is not limited to this; it can also be provided with only one, or three or more.

[0207] In another specific embodiment of this utility model, such as Figure 16 and Figure 17 As shown, the difference between this embodiment and the above embodiment is that the tear channel 6 is entirely inside the contact lens, that is, the tear channel 6 does not form an opening on the front surface 8 or the rear surface 9 of the contact lens, that is, the tear channel 6 is a closed channel.

[0208] A tear channel 6 is located in the peripheral region 12 of the contact lens. The tear channel 6 is closed on the inner (or outer) surface of the contact lens. The end of the tear channel 6 furthest from the geometric center has a port 7, which is located on the end face of the outer peripheral edge of the contact lens. The end of the tear channel 6 closest to the geometric center is closed; however, the end of the tear channel 6 closest to the geometric center can also have a port 7. Tears flow into the tear channel 6 through the port 7, causing the contact lens to rotate, thereby achieving the same technical effect as the above-described embodiment, which will not be described in detail here.

[0209] In another specific embodiment of this utility model, a closed channel can be formed by stacking two substrates together. In this case, one or both of the two opposing surfaces of the two substrates have grooves, and the two substrates can be joined together to form a closed channel. If the contact lens is a contact lens, it can be integrally molded by molding. The male mold and female mold correspond to the rear surface 9 and front surface 8 of the lens, and the insert corresponds to the channel portion. After liquid injection curing, the mold and insert can be removed.

[0210] In another specific embodiment of this utility model, such as Figure 18 and Figure 19As shown, the contact lens has a tear channel 6 in the peripheral region 12. The tear channel 6 extends radially from the outer peripheral edge of the contact lens to the edge of the central region 11, and is partially crescent-shaped when viewed from the front-back direction. Specifically, the tear channel 6 has a first sidewall 4 and a second sidewall 5 disposed opposite each other. Both the first sidewall 4 and the second sidewall 5 extend along the length of the tear channel 6. The distance between the first sidewall 4 and the second sidewall 5 gradually decreases in the radially inward direction. The first sidewall 4 and the second sidewall 5 have the same curvature, and the curvature of the first sidewall 4 is greater than that of the second sidewall 5, thus making the tear channel 6 partially crescent-shaped.

[0211] Figure 19 The first sidewall 4, which has a greater degree of curvature, is located counterclockwise from the second sidewall 5, thus facilitating the contact mirror's orientation. Figure 19 The contact mirror rotates clockwise; that is, by setting the first sidewall 4 and the second sidewall 5 to different degrees of curvature, the rotation direction of the contact mirror can be controlled.

[0212] In this embodiment, the tear channel 6 can be an open channel (i.e., an opening communicating with the tear channel 6 is provided on the front surface 8 or the rear surface 9 of the contact lens) or a closed channel. When the tear channel 6 is an open channel, the two ends of the tear channel 6 have ports 7 (i.e., a radially inner port 7 and a radially outer port 7), and the tear channel 6 extends in a curved manner so that the two ports 7 are located at different positions in the circumferential direction.

[0213] In this embodiment, the first sidewall 4 and the second sidewall 5 bend in the same direction, and the distance between the first sidewall 4 and the second sidewall 5 gradually decreases in the radial inward direction. Of course, the tear channel 6 can also have one or two sidewalls extending in a straight line, and their extension direction can be completely consistent with the radial direction, or it can extend at an angle relative to the radial direction.

[0214] In another specific embodiment of this utility model, such as Figures 20 to 23 As shown, the difference from the above embodiment is that, Figure 20 The contact lens has two tear channels. Figure 21 The contact lens has three tear channels. Figure 22 The contact lens has four tear channels. Figure 23 The contact lens has six tear channels 6, which are evenly spaced in the circumferential direction. Of course, the distribution of the tear channels 6 is not limited to this and can also be uneven.

[0215] In another specific embodiment of this utility model, such as Figure 24As shown, the difference between this embodiment and the above embodiment is that the bending direction of the tear channel 6 is different. Specifically, among the two side walls of the tear channel 6 arranged opposite each other in the circumferential direction, the bending degree of the side wall in the clockwise direction is greater than that of the side wall in the counterclockwise direction. That is, the bending degree of the right side wall is greater than that of the left side wall, so that the contact lens can be rotated in the counterclockwise direction.

[0216] In another specific embodiment of this utility model, such as Figure 25 and Figure 26 As shown, the difference between this embodiment and the previous embodiment lies in the shape of the tear channel 6. In this embodiment, the tear channel 6 is V-shaped. Specifically, the contact lens has a tear channel 6 in the peripheral region 12. The tear channel 6 extends from the edge of the contact lens towards the defocus area and then away from the defocus area; that is, the tear channel 6 extends radially outward to radially inward and then turns back to radially outward, thus forming a V-shaped tear channel 6. Tears flow into the tear channel 6 through the port 7, causing the contact lens to rotate under the action of fluid dynamics. Of course, the shape of the tear channel 6 is not limited to V-shape; it can also be C-shaped or U-shaped.

[0217] In another specific embodiment of this utility model, the tear channel 6 extends from the outer peripheral edge of the contact lens to the outer peripheral edge of the central region 11, or extends to the junction of the peripheral region 12 and the central region 11, thereby forming a channel as long as possible to allow the contact lens to rotate.

[0218] In another specific embodiment of this utility model, such as Figure 26 As shown, the tear channel 6 has two ports 7 at different positions on the outer peripheral edge of the contact lens. The cross-sectional area or cross-sectional width of the tear channel 6 gradually decreases from one end to the other, thereby enhancing the force exerted on the contact lens and reliably causing the contact lens to rotate.

[0219] The cross-sectional area or width of the tear channel 6 gradually decreases from the counterclockwise end to the clockwise end, that is, from the left end to the right end, thus allowing the contact lens to rotate clockwise. The larger portion of the cross-sectional area or width is located on the counterclockwise side, and the smaller portion is located on the clockwise side, which enables the contact lens to rotate clockwise.

[0220] In another specific embodiment of this utility model, such as Figure 27 and Figure 30 As shown, the difference between this embodiment and the above embodiments is that, Figure 27 The contact lens has two tear channels. Figure 28The contact lens has three tear channels. Figure 29 The contact lens has four tear channels. Figure 30 The contact lens has six tear channels 6, which are evenly spaced in the circumferential direction. Of course, the distribution of the tear channels 6 is not limited to this and can also be uneven.

[0221] In another specific embodiment of this utility model, such as Figure 31 As shown, the difference between this embodiment and the previous embodiment lies in the direction of change of the cross-sectional area or cross-sectional width of the tear channel 6. Specifically, the tear channel 6 has two ends at the outer peripheral edge of the contact lens, and the cross-sectional area or cross-sectional width of the tear channel 6 gradually decreases from the clockwise end to the counterclockwise end. This arrangement allows the contact lens to rotate counterclockwise. The cross-section of the tear channel 6 is square, triangular, circular, or regular pentagonal.

[0222] In another specific embodiment of this utility model, such as Figure 32 As shown, the difference between this embodiment and the above embodiment is that the cross-sectional area or cross-sectional width of the tear channel 6 in this embodiment changes in stages, presenting a stepped shape with stepped end faces.

[0223] In another specific embodiment of this utility model, such as Figure 33 As shown, the difference between this embodiment and the above embodiment is that the cross-sectional area or cross-sectional width of the tear channel 6 in this embodiment changes in stages, presenting a stepped shape with stepped end faces.

[0224] In another specific embodiment of this utility model, such as Figure 34 As shown, the difference between this embodiment and the above embodiment is that the cross-sectional area or cross-sectional width of the tear channel 6 in this embodiment changes continuously along the length direction of the tear channel 6.

[0225] In another specific embodiment of this utility model, such as Figure 35 As shown, the difference between this embodiment and the above embodiment is that the cross-sectional area or cross-sectional width of the tear channel 6 in this embodiment changes in stages, presenting a stepped shape with a transition slope.

[0226] The term "comprising" as used throughout this application should not be construed as limited to what is listed thereafter; it does not exclude other structural elements or steps. Therefore, it should be interpreted as specifying the presence of the mentioned technical features, integrals, steps, or components, but does not exclude the presence or addition of one or more other technical features, integrals, steps, or components and groups thereof.

[0227] It is understood that those skilled in the art can combine the features mentioned in one or more embodiments throughout this application with features from other embodiments in any appropriate manner to implement this application.

Claims

1. A contact lens assembly comprising a plurality of lenses for the same eye, characterized in that, The lens has a central correction zone and a patterned area surrounding the central correction zone. The central correction zone has a set optical power for correcting visual acuity or 0 optical power. The pattern and color of the patterned areas among the multiple lenses are different in at least one of them. The central correction zone of the multiple lenses has the same optical power.

2. The contact lens assembly of claim 1, wherein, The pattern area includes an entrance pupil pattern area surrounding the central correction area, or it may have not only an entrance pupil pattern area but also an extra-pupil pattern area on its outer periphery. The entrance pupil pattern areas of the multiple lenses are different.

3. The contact lens assembly according to claim 2, characterized in that, The inner diameter of the pupil pattern area is smaller than the threshold value of the outer diameter of the human pupil in a constricted state; and / or The outer diameter of the extra-pupil pattern area is greater than the threshold value of the outer diameter of the human eye pupil in a magnified state.

4. The contact lens assembly according to claim 2, characterized in that, The inner diameter of the pupil pattern area is less than 1 mm, and the outer diameter of the pupil pattern area is greater than 8 mm.

5. The contact lens assembly of claim 2, wherein, The pattern area also includes an iris pattern area disposed around the outer periphery of the extra-pupil pattern area.

6. The contact lens assembly according to any one of claims 2-5, characterized in that, The inner diameter A of the entrance pupil pattern area and the diameter C of the lens satisfy , wherein the lens diameter k1 is a constant: 8-11, k2 is a constant: 0.2-0.

8.

7. The contact lens assembly of claim 6, wherein, ， ， 。 8. The contact lens assembly of any one of claims 2-5, wherein, The inner diameter A of the entrance pupil pattern area and the lens diameter C satisfy: , wherein the lens diameter .

9. The contact lens assembly of claim 8, wherein, Lens diameter C = 13-14 mm, .

10. The contact lens assembly of any one of claims 2-5, wherein, The area formed by the inner diameter of the entrance pupil pattern area is S1 and the area of the lens is S2, satisfying , Where c1 is a constant: 0.01-0.3, and c2 is a constant: 0.04-0.

64.

11. The contact lens assembly of claim 10, wherein, ， 。 12. The contact lens assembly according to claim 1, characterized in that, The lens also includes a defocus zone surrounding the central correction zone, wherein the optical power of the defocus zone is greater than or equal to that of the central correction zone. The pattern area is located within the defocus area.

13. The contact lens assembly of claim 1, wherein, The pattern on the patterned area of ​​the lens is either a symmetrical or asymmetrical pattern.

14. The contact lens assembly of claim 2, wherein, The elements constituting the entrance pupil pattern area and the external pupil pattern area on the pattern area of ​​the lens may be the same or different.

15. The contact lens assembly of any one of claims 1-5, wherein, Among the plurality of lenses, at least one of the constituent elements, shape, size, and color of the pattern area differs between adjacent lenses.

16. The contact lens assembly of any one of claims 1-5, wherein, The patterned areas of adjacent lenses are different in color, and the lens color reduces the light transmission intensity of at least one or two of the three spectral ranges for cone cell recognition: 420-460, 500-600nm, and 520-620nm.

17. The contact lens assembly of any one of claims 1-5, wherein, The inner diameters of the patterned areas between the multiple lenses are different.

18. The contact lens assembly of any one of claims 1-5, wherein, The inner diameter of the patterned area between the multiple lenses shows a trend of gradually increasing, gradually decreasing, increasing first and then decreasing, or decreasing first and then increasing, depending on the wearing order.

19. The contact lens assembly of any one of claims 1-5, wherein, The multiple lenses have different packaging or marking symbols.

20. The contact lens assembly of any one of claims 1-5, wherein, The patterned area is a dot matrix pattern capable of producing light scattering. The individual dots in the dot matrix of multiple lenses are the same, but the arrangement is different; or, the individual dots are different, but the arrangement is the same; or, both the individual dots and the arrangement are different; or, the coverage of the dot matrix pattern on the lens is different.

21. The contact lens assembly of any one of claims 1-5, wherein, The lens is a scleral contact lens or a corneal contact lens. The corneal contact lens is a soft corneal contact lens, a rigid corneal contact lens, or a hybrid corneal contact lens, wherein the rigid corneal contact lens is a rigid non-permeable corneal contact lens, a rigid permeable corneal contact lens, or an orthokeratology lens.

22. The contact lens assembly of any one of claims 1-5, wherein, The lens is a colored contact lens.

23. The contact lens assembly of any one of claims 1-5, wherein, The lens includes a first substrate and a second substrate, and the patterned area is covered between the first substrate and the second substrate.

24. The contact lens assembly of any one of claims 1-5, wherein, The lenses are daily disposable, weekly disposable, bi-monthly disposable, monthly disposable, quarterly disposable, semi-annual disposable, or annual disposable.

25. The contact lens assembly of claim 1, wherein, The pattern on the patterned area of ​​the lens is an asymmetrical pattern; the lens also includes a peripheral area located radially outside the patterned area and surrounding the patterned area, the peripheral area being provided with a self-rotating structure for automatically rotating the contact lens.

26. The contact lens assembly of claim 25, wherein, The self-rotating structure includes a tear channel disposed in the peripheral region, the tear channel being located on the front or rear surface of the contact lens, the tear channel extending radially along the contact lens, and the structure of the tear channel including at least one of the following: The cross-sectional area or cross-sectional width of the tear channel gradually decreases from the first end to the second end of the tear channel; At least one of the first and second ends of the tear channel forms a port at the edge of the contact lens; The first and second ends of the tear channel are located at different positions in the circumferential direction of the contact lens; The tear channel extends from the edge of the contact lens first toward the defocus area, and then toward the defocus area.

27. The contact lens assembly of claim 26, wherein, When the tear channel extends from the edge of the contact lens first toward the defocused area and then toward the defocused area, the structure of the tear channel includes at least one of the following: The tear channel is V-shaped, C-shaped, or U-shaped; The tear channel has opposing first and second sidewalls, both of which extend along the length of the tear channel.

28. The contact lens assembly of claim 27, wherein, The first sidewall and the second sidewall have the same bending direction, and the curvature of the first sidewall is greater than that of the second sidewall.

29. The contact lens assembly of any one of claims 26-28, wherein, The self-rotating structure includes multiple tear channels, and the structure of the tear channels includes at least one of the following: Multiple tear channels are arranged at circumferential intervals along the contact lens; At least a portion of the tear channel is a groove-like structure disposed on the rear surface of the contact lens; At least a portion of the tear channel is located inside the contact lens; The cross-sectional area or cross-sectional width of the tear channel varies continuously or in stages along the length of the tear channel; At least a portion of the tear channel extends radially along the contact lens; At least a portion of the tear channel has a cross-sectional area or cross-sectional width that gradually decreases in the radial inward direction along the contact mirror.

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