Contact lenses and contact lens products

Abstract

A contact lens and a contact lens product, the contact lens comprising, in order from the center outward, a central zone, an annular zone, a peripheral zone, and a rounded corner zone. The central zone includes a center point of the contact lens. The annular zone surrounds the central zone. The peripheral zone surrounds the annular zone. The rounded corner zone surrounds the peripheral zone, and the rounded corner zone includes a front surface, a rounded corner surface, and a back surface, wherein the rounded corner surface is contiguous to the front surface and the back surface, and the back surface includes at least one support back surface. When certain conditions are met, the pressure of the contact lens on the cornea can be effectively reduced to avoid the possibility of corneal structure damage, thereby improving the wearing comfort of the user, and can help reduce the difficulty of design and manufacture of the contact lens.

Description

[0001] This application is a divisional application of the patent application filed on March 27, 2020, with application number 202010226282.2 and entitled "Contact Lenses and Contact Lens Products". Technical Field

[0002] This invention relates to a contact lens and a contact lens product, and more particularly to a contact lens and a contact lens product that can effectively improve wearing comfort. Background Technology

[0003] Conventional contact lenses often have poorly designed outer edges, and these poorly designed lenses have sharp edges that significantly affect wearing comfort. Furthermore, when contact lenses come into contact with a sensitive cornea, discomfort is likely to occur initially, and prolonged wear can easily lead to corneal surface deformation and even damage to the corneal structure. Summary of the Invention

[0004] According to the present invention, a contact lens is provided, comprising, from the center outwards, a central region, an annular region, a peripheral region, and a rounded corner region. The central region contains a center point of the contact lens. The annular region surrounds the central region. The peripheral region surrounds the annular region. The rounded corner region surrounds the peripheral region, and the rounded corner region includes a front surface, a rounded corner facet, and a rear surface, wherein the rounded corner facet is adjacent to the front surface and the rear surface, and the rear surface includes at least one supporting rear surface. The radius of curvature of the rounded corner facet in the rounded corner region is RE, the at least one supporting rear surface adjacent to the rounded corner facet in the rounded corner region is a first supporting rear surface, the radius of curvature of the first supporting rear surface is RB1s, and the radius of curvature of the front surface in the rounded corner region is RF, which satisfies the following conditions:

[0005] 10.00≤RB1s / RE≤1.00E+5; and

[0006] 0.10≤RB1s / (RF×RE)≤1.00E+05.

[0007] According to the present invention, another contact lens product is provided, comprising a contact lens as described above, a buffer solution, and a package. The contact lens is immersed in the buffer solution. The contact lens and the buffer solution are contained in the package. The contact lens comprises a stimulating agent, a humectant, a pigment, or a myopia control agent.

[0008] According to the present invention, another contact lens product is provided, comprising a contact lens as described above, a buffer solution, and a package. The contact lens is immersed in the buffer solution. The contact lens and the buffer solution are contained in the package. The buffer solution comprises a stimulating agent, a wetting agent, a pigment, or a myopia control agent.

[0009] According to the present invention, a contact lens is provided, which sequentially includes a central region, an annular region, a peripheral region, and a rounded corner region from the center outwards. The central region includes a center point of the contact lens. The annular region surrounds the central region. The peripheral region surrounds the annular region. The rounded corner region surrounds the peripheral region, and the rounded corner region includes a front surface, a rounded corner surface, and a rear surface, wherein the rounded corner surface is adjacent to the front surface and the rear surface, and the rear surface includes at least one supporting rear surface. Among them, the radius of curvature of the rounded corner surface in the rounded corner region is RE, the maximum width of the rounded corner surface in the rounded corner region is WRE, the maximum diameter of the contact lens is DiL, at least one supporting rear surface adjacent to the rounded corner surface in the rounded corner region is a first supporting rear surface, the radius of curvature of the first supporting rear surface is RB1s, and the radius of curvature of the front surface in the rounded corner region is RF, which satisfy the following conditions: 0 < RE ≤ 1.00E+10; 0.05% ≤ 2×WRE / DiL ≤ 10%; and 1.00E-08 ≤ RB1s / (RF×RE) ≤ 1.00E+05.

[0010] According to the present invention, another contact lens product is provided, which includes the contact lens as described in the previous paragraph, a buffer solution, and a package. The contact lens is immersed in the buffer solution. The contact lens and the buffer solution are placed in the package. Among them, the contact lens includes a beneficial agent, a wetting agent, a pigment, or a myopia control agent.

[0011] According to the present invention, another contact lens product is provided, which includes the contact lens as described in the previous paragraph, a buffer solution, and a package. The contact lens is immersed in the buffer solution. The contact lens and the buffer solution are placed in the package. Among them, the buffer solution includes a beneficial agent, a wetting agent, a pigment, or a myopia control agent.

[0012] Thus, through the design of the rounded corner region that continuously and adjacently includes at least three different radii of curvature surfaces at its outermost edge region, and with the optimal configuration of the radii of curvature sizes and surface area sizes among the front surface, the rounded corner surface, and the rear surface of the rounded corner region, the contact lens of the present invention can effectively reduce the pressure when the contact lens adheres to the cornea, avoid the possibility of corneal structure damage, thereby improving the wearing comfort of the user, and can also help reduce the difficulty of the design and manufacture of the contact lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1A is a schematic diagram of a contact lens according to an embodiment of the present invention;

[0014] Figure 1B is shown Figure 1A a cross-sectional schematic diagram of the contact lens along the cutting line 1b-1b in

[0015] Figure 1C is shown Figure 1B a partial enlarged schematic diagram of the contact lens in

[0016] Figure 2 It depicts a user wearing [the device]. Figure 1A A diagram illustrating the use of contact lenses;

[0017] Figure 3A This is a schematic diagram illustrating a contact lens according to a first embodiment of the present invention;

[0018] Figure 3B It is a drawing Figure 3A A cross-sectional view of a medium-sized contact lens along section line 3b-3b;

[0019] Figure 3C It is a drawing Figure 3B A magnified diagram of the rounded corner area of ​​a contact lens;

[0020] Figure 4A This is a schematic diagram illustrating a contact lens according to a second embodiment of the present invention;

[0021] Figure 4B It is a drawing Figure 4A A cross-sectional view of a medium-sized contact lens along section line 4b-4b;

[0022] Figure 4C It is a drawing Figure 4B A magnified diagram of the rounded corner area of ​​a contact lens;

[0023] Figure 5A This is a schematic diagram illustrating a contact lens according to a third embodiment of the present invention;

[0024] Figure 5B It is a drawing Figure 5A A cross-sectional view of a medium-sized contact lens along section line 5b-5b;

[0025] Figure 5C It is a drawing Figure 5B A magnified diagram of the rounded corner area of ​​a contact lens;

[0026] Figure 6A This is a schematic diagram illustrating a contact lens according to a fourth embodiment of the present invention;

[0027] Figure 6B It is a drawing Figure 6A A cross-sectional view of a medium-sized contact lens along section line 6b-6b;

[0028] Figure 6C It is a drawing Figure 6B A magnified diagram of the rounded corner area of ​​a contact lens;

[0029] Figure 7A This is a schematic diagram illustrating a contact lens according to a fifth embodiment of the present invention;

[0030] Figure 7B It is a drawing Figure 7A A schematic cross-sectional view of a medium-sized contact lens along section line 7b-7b; and

[0031] Figure 7C It is a drawing Figure 7B A magnified diagram of the rounded corner area of ​​a medium-sized contact lens.

[0032] [Symbol Explanation]

[0033] 100, 200, 300, 400, 500, 600… contact lenses

[0034] 110…Central District

[0035] 120… Circular area

[0036] 130…surrounding area

[0037] 140, 240, 340, 440, 540, 640… Rounded corner areas

[0038] 150, 250, 350, 450, 550, 650… front surface

[0039] 160, 260, 360, 460, 560, 660… Rounded corners

[0040] 170, 270, 370, 470, 570, 670… back surface

[0041] 170A…Support Area

[0042] 170B…flow channel area

[0043] 170C…Transition Zone

[0044] 171a…First support rear surface

[0045] 171b…First flow channel rear surface

[0046] 172a…Second support rear surface

[0047] 172b…Second flow channel rear surface

[0048] 173a… Third support rear surface

[0049] 173b… Third flow channel rear surface

[0050] 174a…Fourth support rear surface

[0051] 174b…Fourth flow channel rear surface

[0052] 175a… Fifth support rear surface

[0053] 175b… Fifth flow channel rear surface

[0054] 1b-1b, 3b-3b, 4b-4b, 5b-5b, 6b-6b, 7b-7b… secant lines

[0055] The radius of curvature of the fillet surface in the rounded corner area...

[0056] RF…Radius of curvature of the front surface in the rounded corner region

[0057] RB1s…Radius of curvature of the surface behind the first support

[0058] RB2s…Radius of curvature of the surface after the second support

[0059] RB3s…Relative of curvature of the surface after the third support

[0060] RB4s…Radius of curvature of the surface after the fourth support

[0061] RB5s…Radius of curvature of the surface after the fifth support

[0062] RB1f…Radius of curvature of the rear surface of the first flow channel

[0063] RB2f…Radius of curvature of the rear surface of the second flow channel

[0064] RB3f…Relative to curvature of the rear surface of the third flow channel

[0065] RB4f…Relative to curvature of the rear surface of the fourth flow channel

[0066] RB5f…Relative of curvature of the rear surface of the fifth flow channel

[0067] WRF…Maximum width of the front surface in the rounded corner area

[0068] WRE… The maximum width of the rounded corner surface in the rounded corner area

[0069] WRBmax…the maximum width of all supports on the rear surface.

[0070] WRMax…the largest of WRF, WRE, and WRBmax

[0071] WRZ… Width of rounded corner area

[0072] DiL… Maximum diameter of contact lenses Detailed Implementation

[0073] Please refer to Figure 1A , Figure 1B as well as Figure 1C , Figure 1A This is a schematic diagram illustrating a contact lens 100 according to an embodiment of the present invention. Figure 1B It is a drawing Figure 1AA cross-sectional view of the contact lens 100 along section line 1b-1b. Figure 1C It is a drawing Figure 1B A magnified view of a portion of the contact lens 100. The contact lens 100 includes, from the center outwards, a central area 110, a ring-shaped area 120, a peripheral area 130, and a rounded corner area 140.

[0074] like Figure 1A , Figure 1B as well as Figure 1C As shown, the central region 110 includes the center point of the contact lens 100. An annular region 120 surrounds the central region 110. A peripheral region 130 surrounds the annular region 120. A rounded region 140 surrounds the peripheral region 130, and the rounded region 140 includes a front surface 150, a rounded corner surface 160, and a rear surface 170, wherein the rounded corner surface 160 is adjacent to the front surface 150 and the rear surface 170, and the rear surface 170 includes at least one supporting rear surface (not otherwise labeled). In detail, the central region 110 includes the optical area of ​​the contact lens 100, the annular region 120 surrounds the central region 110 and may include the optical area of ​​the contact lens 100, while the peripheral region 130 and the rounded region 140 may not include the optical area of ​​the contact lens 100. The rounded corner area 140 includes the outermost pointed tip of the contact lens 100. The anterior surface 150 of the rounded corner area 140 refers to the surface of the contact lens 100 that is furthest from the user's cornea when correctly worn (i.e., the outer surface of the contact lens 100). The rounded corner surface 160 includes the pointed tip at the outermost corner of the contact lens 100 and the surface adjacent to the middle of the anterior surface 150 and the posterior surface 170. The posterior surface 170 refers to the surface that is closest to the user's cornea when correctly worn (i.e., the inner surface of the contact lens 100). The anterior surface 150, rounded corner surface 160, and posterior surface 170 form a continuous spherical design. The supporting posterior surface of the posterior surface 170 is located closer to the cornea and is primarily responsible for providing support between the contact lens 100 and the cornea, enabling the contact lens 100 to adhere to the corneal surface. A well-designed supporting posterior surface can reduce corneal deformation and damage.

[0075] In the contact lens 100 of the present invention, as Figure 1CAs shown, the supporting rear surface adjacent to the rounded corner surface 160 in the rounded corner region 140 is the first supporting rear surface 171a. The radius of curvature of the rounded corner surface 160 in the rounded corner region 140 is RE, the radius of curvature of the front surface 150 in the rounded corner region 140 is RF, and the radius of curvature of the first supporting rear surface 171a is RB1s, satisfying the following condition: RE≤RF≤RB1s. Therefore, the outermost edge region of the contact lens 100 of the present invention is designed with rounded corner regions 140 that are continuously adjacent to surfaces containing at least three different radii of curvature. Furthermore, the multiple radii of curvature of the front surface 150, rounded corner surface 160, and rear surface 170 of the rounded corner region 140 have an optimal configuration of radius of curvature and surface area size. This effectively reduces the pressure of the contact lens 100 adhering to the cornea, avoiding the possibility of corneal structural damage, thereby improving user comfort and helping to reduce the design and manufacturing difficulty of the contact lens 100.

[0076] In the contact lens 100 of the present invention, the radius of curvature of the front surface 150 in the rounded corner region 140 is RF, which satisfies the following condition: 0 ≤ RF < infinity. Therefore, the optimally designed radius of curvature of the front surface 150 of the rounded corner region 140 of the contact lens 100 can optimize the shape of the front surface 150 and adjust the thickness of the rounded corner region 140, helping to maintain the structural strength of the rounded corner region 140 and improve wearing comfort. When the upper limit falls outside the range, the front surface 150 may not smoothly connect with the surface of the peripheral region 130, and the insufficient thickness of the rounded corner region 140 may lead to structural deformation. Conversely, when the lower limit falls outside the range, the front surface 150 may be too convex, easily causing a foreign body sensation and affecting wearing comfort. Alternatively, it can satisfy the following condition: 0.01 ≤ RF ≤ 1.00E+10. Or, it can satisfy the following condition: 0.10 ≤ RF ≤ 1.00E+05. Alternatively, it may satisfy the following condition: 0.50≤RF≤1000.00. Or, it may satisfy the following condition: 0.60≤RF≤8.00.

[0077] In the contact lens 100 of the present invention, the radius of curvature of the rounded corner surface 160 in the rounded corner region 140 is RE, which satisfies the following condition: 0 ≤ RE < infinity. Therefore, the optimally designed radius of curvature of the rounded corner surface 160 of the rounded corner region 140 of the contact lens 100 optimizes the surface shape of the rounded corner surface 160 and smoothly connects to the anterior surface 150 and the posterior surface 170, simplifying design and improving manufacturability. It also optimizes the rounded corner structure of the contact lens 100, avoiding damage to the cornea. If the upper limit falls outside the range, the rounded corner surface 160 may not smoothly connect to the anterior surface 150 and the posterior surface 170; if the lower limit falls outside the range, the rounded corner surface 160 may be too sharp, potentially damaging the cornea and causing corneal deformation. Alternatively, it can satisfy the following condition: 1.00E-05 ≤ RE ≤ 1.00E+10. Alternatively, it can satisfy the following condition: 0.01 ≤ RE ≤ 100.00. Alternatively, it can satisfy the following condition: 0.10 ≤ RE ≤ 10.00. Or, it can satisfy the following condition: 0.0200 ≤ RE ≤ 0.05.

[0078] In the contact lens 100 of the present invention, the radius of curvature of the first supporting rear surface 171a is RB1s, which satisfies the following condition: 0 ≤ RB1s < infinity. Therefore, the optimally designed radius of curvature of the first supporting rear surface 171a of the rounded corner area 140 of the contact lens 100 optimizes the surface shape of the first supporting rear surface 171a, providing support for the contact lens 100 to adhere to the cornea, helping to reduce corneal deformation and damage. When the upper limit falls outside the range, the supporting rear surface may not conform to the shape of the cornea and cannot adhere effectively, causing warping deformation of the rounded corner area 140. When the lower limit falls outside the range, the supporting rear surface may be too convex, easily causing corneal deformation and foreign body sensation. Alternatively, it can satisfy the following condition: 1.00E-03 ≤ RB1s ≤ 1.00E+10. Alternatively, it can satisfy the following condition: 0.10 ≤ RB1s ≤ 1.00E+05. Alternatively, it may satisfy the following condition: 0.50 ≤ RB1s ≤ 1000.00. Or, it may satisfy the following condition: 0.05 ≤ RB1s ≤ 9.00.

[0079] In the contact lens 100 of the present invention, the first supporting rear surface 171a of the rear surface 170 is spherical, and the front surface 150, the rounded corner surface 160, and the first supporting rear surface 171a can form a continuous spherical design, wherein all supporting rear surfaces of the rear surface 170 other than the first supporting rear surface 171a can be spherical, aspherical, or planar. Therefore, by optimally designing the multiple supporting rear surfaces of the rounded corner area 140 of the contact lens 100 with spherical, aspherical, or planar surface shapes, and adjusting the optimal supporting rear surface configuration, the support of the rounded corner area 140 of the contact lens 100 is improved and corneal deformation is avoided. Alternatively, at least one of the supporting rear surfaces of the rear surface 170 other than the first supporting rear surface 171a is spherical. Alternatively, at least one of the supporting rear surfaces of the rear surface 170 other than the first supporting rear surface 171a is aspherical. Alternatively, at least one of the supporting rear surfaces of the rear surface 170 other than the first supporting rear surface 171a is planar. Alternatively, at least one of the supporting rear surfaces of rear surface 170 that is not the first supporting rear surface 171a is a sphere and at least one is an aspherical surface. Alternatively, at least two of the supporting rear surfaces of rear surface 170 that is not the first supporting rear surface 171a are spherical. Alternatively, at least two of the supporting rear surfaces of rear surface 170 that is not the first supporting rear surface 171a are aspherical. Alternatively, at least one of the supporting rear surfaces of rear surface 170 that is not the first supporting rear surface 171a is a sphere and at least one is a plane. Alternatively, at least three of the supporting rear surfaces of rear surface 170 that is not the first supporting rear surface 171a are spherical. Alternatively, at least one of the supporting rear surfaces of rear surface 170 that is not the first supporting rear surface 171a is an aspherical surface and at least one is a plane. Alternatively, at least four of the supporting rear surfaces of rear surface 170 that is not the first supporting rear surface 171a are spherical. Alternatively, at least one of the supporting rear surfaces of the rear surface 170 that is not the first supporting rear surface 171a is a sphere, at least one is an aspherical surface, and at least one is a plane.

[0080] exist Figure 1C In the embodiments, the supporting rear surfaces of the rear surface 170 of the contact lens 100, from the rounded corner surface 160 to the center point of the contact lens 100, can be sequentially a first supporting rear surface 171a, a second supporting rear surface 172a, a third supporting rear surface 173a, a fourth supporting rear surface 174a, and a fifth supporting rear surface 175a, but the present invention is not limited thereto. Furthermore, in Figure 1C In the diagram, the lines between the first rear support surface 171a, the second rear support surface 172a, the third rear support surface 173a, the fourth rear support surface 174a and the fifth rear support surface 175a are only used to indicate the range of the five rear support surfaces, and the present invention is not limited thereto.

[0081] In the contact lens 100 of the present invention, the radius of curvature of the anterior surface 150 of the rounded corner region 140 is RF, and the radius of curvature of the first supporting posterior surface 171a of the rounded corner region 140 is RB1s, which can satisfy the following condition: 0.01≤RF / RB1s≤1.00E+10. Therefore, the optimally designed radius of curvature of the anterior surface 150 and the first supporting posterior surface 171a of the rounded corner region 140 of the contact lens 100 can achieve optimal thickness of the rounded corner region 140 and optimal support of the contact lens 100 on the cornea, helping to maintain the structural strength of the rounded corner region 140, reduce corneal deformation, and improve wearing comfort. Alternatively, it can satisfy the following condition: 0≤RF / RB1s<infinity. Alternatively, it can satisfy the following condition: 0.10≤RF / RB1s≤1.00E+03. Alternatively, it can satisfy the following condition: 1.00≤RF / RB1s≤20.00. Alternatively, it can satisfy the following condition: 0.05≤RF / RB1s≤7.00.

[0082] In the contact lens 100 of the present invention, the radius of curvature of the anterior surface 150 of the rounded corner region 140 is RF, and the radius of curvature of the first supporting posterior surface 171a of the rounded corner region 140 is RB1s, which can satisfy the following condition: 0 ≤ RB1s / RF < infinity. Therefore, the optimally designed radius of curvature of the anterior surface 150 and the first supporting posterior surface 171a of the rounded corner region 140 of the contact lens 100 can achieve the optimal thickness of the rounded corner region 140 and the optimal support of the contact lens 100 on the cornea, helping to maintain the structural strength of the rounded corner region 140, reduce corneal deformation, and improve wearing comfort. Alternatively, it can satisfy the following condition: 1.00E-09 ≤ RB1s / RF ≤ 1.00E+10. Alternatively, it can satisfy the following condition: 0.10 ≤ RB1s / RF ≤ 100.00. Alternatively, it can satisfy the following condition: 5.00 ≤ RB1s / RF ≤ 10.00. Alternatively, it can satisfy the following condition: 0.10≤RB1s / RF≤15.00.

[0083] In the contact lens 100 of the present invention, the radius of curvature of the anterior surface 150 of the rounded corner region 140 is RF, and the radius of curvature of the rounded corner surface 160 of the rounded corner region 140 is RE, which can satisfy the following condition: 1.00≤RF / RE≤1.00E+10. Therefore, the optimally designed radius of curvature of the anterior surface 150 and the rounded corner surface 160 of the rounded corner region 140 of the contact lens 100 can achieve the optimal thickness and surface shape of the rounded corner region 140, which helps to simplify design, improve manufacturability, and avoid damage to the cornea. Alternatively, it can satisfy the following condition: 0≤RF / RE<infinity. Alternatively, it can satisfy the following condition: 10.00≤RF / RE≤1.00E+05. Alternatively, it can satisfy the following condition: 100.00≤RF / RE≤1000.00. Alternatively, it can satisfy the following condition: 120.00≤RF / RE≤250.00.

[0084] In the contact lens 100 of the present invention, the radius of curvature of the anterior surface 150 of the rounded corner region 140 is RF, and the radius of curvature of the rounded corner surface 160 of the rounded corner region 140 is RE, which can satisfy the following condition: 0 ≤ 1000 × RE / RF < infinity. Therefore, the optimally designed radius of curvature of the anterior surface 150 and the rounded corner surface 160 of the rounded corner region 140 of the contact lens 100 can achieve the optimal thickness and surface shape of the rounded corner region 140, which helps to simplify design, improve manufacturability, and avoid damage to the cornea. Alternatively, it can satisfy the following condition: 1.00E-05 ≤ 1000 × RE / RF ≤ 1.00E+10. Alternatively, it can satisfy the following condition: 0.01 ≤ 1000 × RE / RF ≤ 100.00. Alternatively, it can satisfy the following condition: 0.10 ≤ 1000 × RE / RF ≤ 10.00. Alternatively, it can satisfy the following condition: 1.00≤1000×RE / RF≤10.00.

[0085] In the contact lens 100 of the present invention, the radius of curvature of the rounded corner surface 160 in the rounded corner region 140 is RE, and the radius of curvature of the first supporting rear surface 171a in the rounded corner region 140 is RB1s, which can satisfy the following condition: 0.10≤RB1s / RE≤1.00E+05. Therefore, the optimally designed radius of curvature of the first supporting rear surface 171a and the rounded corner surface 160 of the rounded corner region 140 of the contact lens 100 can achieve optimal support and surface shape of the contact lens 100 when attached to the cornea, helping to reduce corneal deformation and avoid corneal damage. Alternatively, it can satisfy the following condition: 0≤RB1s / RE<infinity. Alternatively, it can satisfy the following condition: 1.00≤RB1s / RE≤100.00. Alternatively, it can satisfy the following condition: 5.00≤RB1s / RE≤10.00. Alternatively, it can satisfy the following condition: 10.00≤RB1s / RE≤1.00E+04.

[0086] In the contact lens 100 of the present invention, the radius of curvature of the rounded corner surface 160 in the rounded corner region 140 is RE, and the radius of curvature of the first supporting rear surface 171a in the rounded corner region 140 is RB1s, which can satisfy the following condition: 0 ≤ 1000 × RE / RB1s < infinity. Therefore, the optimally designed radius of curvature of the first supporting rear surface 171a and the rounded corner surface 160 of the rounded corner region 140 of the contact lens 100 can achieve optimal support and surface shape of the contact lens 100 when attached to the cornea, helping to reduce corneal deformation and avoid corneal damage. Alternatively, it can satisfy the following condition: 1.00E-05 ≤ 1000 × RE / RB1s ≤ 1.00E+10. Alternatively, it can satisfy the following condition: 0.01 ≤ 1000 × RE / RB1s ≤ 100.00. Alternatively, it can satisfy the following condition: 0.10 ≤ 1000 × RE / RB1s ≤ 10.00. Alternatively, it can satisfy the following condition: 0.10≤1000×RE / RB1s≤25.00.

[0087] In the contact lens 100 of the present invention, the radius of curvature of the rounded corner surface 160 in the rounded corner region 140 is RE, the radius of curvature of the front surface 150 in the rounded corner region 140 is RF, and the radius of curvature of the first supporting rear surface 171a is RB1s, which satisfies the following condition: 0 ≤ RB1s / (RF×RE) < infinity. Therefore, the optimally designed radius of curvature of the first supporting rear surface 171a, the front surface 150, and the rounded corner surface 160 of the rounded corner region 140 of the contact lens 100 achieves optimal support, thickness, and surface shape, helping to reduce corneal deformation, avoid corneal damage, and improve wearing comfort. Alternatively, it can satisfy the following condition: 1.00E-08 ≤ RB1s / (RF×RE) ≤ 1.00E+05. Alternatively, it can satisfy the following condition: 0.10 ≤ RB1s / (RF×RE) ≤ 1000.00. Alternatively, it may satisfy the following condition: 5.00≤RB1s / (RF×RE)≤100.00. Alternatively, it may satisfy the following condition: 8.00≤RB1s / (RF×RE)≤1.00E+04.

[0088] In the contact lens 100 of the present invention, the maximum width of the front surface 150 in the rounded corner region 140 is WRF, which satisfies the following condition: 0.01mm ≤ WRF ≤ 0.90mm. Therefore, the optimally designed maximum width of the front surface 150 in the rounded corner region 140 of the contact lens 100 achieves an optimal thickness configuration range for the rounded corner region 140, which helps to strengthen the structural strength of the rounded corner region 140 and improve wearing comfort. Alternatively, it can satisfy the following condition: 0.005mm ≤ WRF ≤ 1.00mm. Alternatively, it can satisfy the following condition: 0.05mm ≤ WRF ≤ 0.80mm. Alternatively, it can satisfy the following condition: 0.10mm ≤ WRF ≤ 0.70mm. Alternatively, it can satisfy the following condition: 0.50mm ≤ WRF ≤ 0.60mm.

[0089] In the contact lens 100 of the present invention, the maximum width of the rounded corner surface 160 in the rounded corner area 140 is WRE, which satisfies the following condition: 0.008mm ≤ WRE ≤ 0.45mm. Therefore, the optimally designed maximum width of the rounded corner surface 160 in the rounded corner area 140 of the contact lens 100 achieves an optimal surface configuration range for the rounded corner surface 160 and avoids excessively sharp corners, enhancing the comfortable rounded corner structure design of the contact lens 100 and protecting the cornea. Alternatively, it can satisfy the following condition: 0.005mm ≤ WRE ≤ 0.55mm. Alternatively, it can satisfy the following condition: 0.015mm ≤ WRE ≤ 0.35mm. Alternatively, it can satisfy the following condition: 0.025mm ≤ WRE ≤ 0.25mm. Alternatively, it can satisfy the following condition: 0.12mm ≤ WRE ≤ 0.15mm.

[0090] In the contact lens 100 of the present invention, the maximum width among all supporting rear surfaces in the rear surface 170 is WRBmax, which satisfies the following condition: 0.005mm ≤ WRBmax ≤ 1.00mm. Specifically, in the contact lens 100, the maximum width WRBmax among all supporting rear surfaces in the rear surface 170 of the rounded corner area 140 can be the maximum width among the first supporting rear surface 171a, the second supporting rear surface 172a, the third supporting rear surface 173a, the fourth supporting rear surface 174a, and the fifth supporting rear surface 175a. However, if the supporting rear surface of the rear surface 170 is formed by the first supporting rear surface 171a, then the width of the first supporting rear surface 171a is the maximum width among all supporting rear surfaces in the rear surface 170. Thus, the optimally designed maximum width of the rear surface 170 in the rounded corner area 140 of the contact lens 100 achieves the optimal surface shape design of the rear surface 170, enhancing the balance between surface support and fluidity in the rounded corner area 140. Alternatively, it may satisfy the following conditions: 0mm ≤ WRBmax ≤ 1.00mm. Alternatively, it may satisfy the following conditions: 0.02mm ≤ WRBmax ≤ 0.80mm. Alternatively, it may satisfy the following conditions: 0.03mm ≤ WRBmax ≤ 0.50mm. Alternatively, it may satisfy the following conditions: 0.05mm ≤ WRBmax ≤ 0.30mm.

[0091] In the contact lens 100 of the present invention, the maximum width of the anterior surface 150 in the rounded corner area 140 is WRF, the maximum width of the rounded corner surface 160 in the rounded corner area 140 is WRE, and the maximum width among all supporting rear surfaces in the rear surface 170 is WRBmax. The largest of WRF, WRE, and WRBmax is WRMax, which satisfies the following condition: 0.20mm ≤ WRMax ≤ 1.20mm. This balanced design of the maximum width of the anterior surface 150, the maximum width of the rounded corner surface 160, and the maximum width of the rear surface 170 in the rounded corner area 140 enhances structural strength, comfort, and corneal protection. Alternatively, it can satisfy the following condition: 0.10mm ≤ WRMax ≤ 1.50mm. Alternatively, it can satisfy the following condition: 0.30mm ≤ WRMax ≤ 0.95mm. Alternatively, it can satisfy the following condition: 0.40mm ≤ WRMax ≤ 0.85mm. Alternatively, it can satisfy the following condition: 0.50mm≤WRMax≤0.75mm.

[0092] In the contact lens 100 of the present invention, the width of the rounded corner area 140 is WRZ, which satisfies the following condition: 0.05mm ≤ WRZ ≤ 1.20mm. More specifically, the width of the rounded corner area 140 is the width of the rounded corner area 140 from the periphery of the peripheral area 130 to the periphery of the contact lens 100. Thus, the optimally designed range of the rounded corner area 140 of the contact lens 100 enhances support, structural strength, comfort, and corneal protection. Alternatively, it may satisfy the following condition: 0.01mm ≤ WRZ ≤ 1.50mm. Alternatively, it may satisfy the following condition: 0.10mm ≤ WRZ ≤ 0.95mm. Alternatively, it may satisfy the following condition: 0.15mm ≤ WRZ ≤ 0.75mm. Alternatively, it may satisfy the following condition: 0.20mm ≤ WRZ ≤ 0.45mm.

[0093] In the contact lens 100 of the present invention, the maximum diameter of the contact lens 100 is DiL, which satisfies the following condition: 11.00mm ≤ DiL ≤ 15.00mm. This optimally designed maximum diameter of the contact lens 100 helps avoid the problem of the contact lens 100 being too large and difficult to wear, or too small and prone to falling out. Alternatively, it can satisfy the following condition: 12.00mm ≤ DiL ≤ 14.50mm. Alternatively, it can satisfy the following condition: 13.00mm ≤ DiL ≤ 14.50mm. Alternatively, it can satisfy the following condition: 14.00mm ≤ DiL ≤ 14.50mm. Alternatively, it can satisfy the following condition: 14.20mm ≤ DiL ≤ 14.40mm.

[0094] In the contact lens 100 of the present invention, the maximum width of the front surface 150 in the rounded corner region 140 is WRF, and the maximum diameter of the contact lens 100 is DiL, which satisfies the following condition: 0.5% ≤ 2 × WRF / DiL ≤ 12%. Therefore, the optimally designed maximum width of the front surface 150 in the rounded corner region 140 of the contact lens 100 achieves an optimal range for the thickness configuration of the rounded corner region 140, which helps to strengthen the structural strength of the rounded corner region 140 and improve wearing comfort. Alternatively, it can satisfy the following condition: 0.1% ≤ 2 × WRF / DiL ≤ 15%. Alternatively, it can satisfy the following condition: 1% ≤ 2 × WRF / DiL ≤ 10%. Alternatively, it can satisfy the following condition: 3% ≤ 2 × WRF / DiL ≤ 8%. Alternatively, it can satisfy the following condition: 5% ≤ 2 × WRF / DiL ≤ 7%.

[0095] In the contact lens 100 of the present invention, the maximum width of the rounded corner surface 160 in the rounded corner area 140 is WRE, and the maximum diameter of the contact lens 100 is DiL, which satisfies the following condition: 0.1% ≤ 2 × WRE / DiL ≤ 8%. Therefore, the optimally designed maximum width of the rounded corner surface 160 in the rounded corner area 140 of the contact lens 100 achieves an optimal surface configuration range for the rounded corner surface 160 and avoids excessively sharp corners, enhancing the comfortable rounded corner structure design of the contact lens 100 and protecting the cornea. Alternatively, it can satisfy the following condition: 0.05% ≤ 2 × WRE / DiL ≤ 10%. Alternatively, it can satisfy the following condition: 0.5% ≤ 2 × WRE / DiL ≤ 5%. Alternatively, it can satisfy the following condition: 1% ≤ 2 × WRE / DiL ≤ 4%. Alternatively, it can satisfy the following condition: 2% ≤ 2 × WRE / DiL ≤ 3%.

[0096] In the contact lens 100 of the present invention, the maximum width of all supporting rear surfaces in the rear surface 170 is WRBmax, and the maximum diameter of the contact lens 100 is DiL, which can satisfy the following condition: 1% ≤ 2 × WRBmax / DiL ≤ 14%. Thus, the maximum width of the rear surface 170 in the rounded corner area 140 of the optimally designed contact lens 100 can achieve an optimal surface shape design of the rear surface 170, enhancing the balance between surface support and flowability of the rounded corner area 140. Alternatively, it can satisfy the following condition: 0.5% ≤ 2 × WRBmax / DiL ≤ 15%. Alternatively, it can satisfy the following condition: 2% ≤ 2 × WRBmax / DiL ≤ 13%. Alternatively, it can satisfy the following condition: 3% ≤ 2 × WRBmax / DiL ≤ 12%. Alternatively, it can satisfy the following condition: 4% ≤ 2 × WRBmax / DiL ≤ 11%.

[0097] In the contact lens 100 of the present invention, the maximum width of the anterior surface 150 in the rounded corner region 140 is WRF, the maximum width of the rounded corner surface 160 in the rounded corner region 140 is WRE, the maximum width of all supporting rear surfaces in the rear surface 170 is WRBmax, and the largest of WRF, WRE, and WRBmax is WRMax. The width of the rounded corner region 140 is WRZ, which satisfies the following condition: 45% ≤ WRMax / WRZ ≤ 100%. This balanced design of the maximum width of the anterior surface 150, the maximum width of the rounded corner surface 160, and the maximum width of the rear surface 170 in the rounded corner region 140 enhances structural strength, comfort, and corneal protection. Alternatively, it can satisfy the following condition: 55% ≤ WRMax / WRZ ≤ 90%. Alternatively, it can satisfy the following condition: 65% ≤ WRMax / WRZ ≤ 80%. Alternatively, it can satisfy the following condition: 55% ≤ WRMax / WRZ ≤ 70%.

[0098] In the contact lens 100 of the present invention, the width of the rounded corner area 140 is WRZ, and the maximum diameter of the contact lens 100 is DiL, which satisfies the following condition: 1% ≤ 2 × WRZ / DiL ≤ 14%. Specifically, the width WRZ of the rounded corner area 140 is less than 15% of the diameter of the contact lens 100, and when the radius of curvature of the first support rear surface 171a is equal to the base curve of the contact lens 100, the inner boundary of the rounded corner area 140 is defined as 7.5% inward from the outermost edge of one side of the lens. Thus, the optimally designed range of the rounded corner area 140 of the contact lens 100 enhances support, structural strength, comfort, and corneal protection. Alternatively, it can satisfy the following condition: 0.5% ≤ 2 × WRZ / DiL ≤ 15%. Alternatively, it can satisfy the following condition: 3% ≤ 2 × WRZ / DiL ≤ 11%. Alternatively, it can satisfy the following condition: 5% ≤ 2 × WRZ / DiL ≤ 9%. Alternatively, it can satisfy the following condition: 7% ≤ 2 × WRZ / DiL ≤ 8%.

[0099] In the contact lens 100 of the present invention, the posterior surface 170 may further include at least one channel posterior surface (not otherwise labeled). The at least one channel posterior surface of the posterior surface 170 is the channel surface of the posterior surface 170, located further away from the cornea. It is primarily responsible for the flow between the contact lens 100 and the cornea, improving the flow of the thin tear film inside and outside the contact lens 100. This helps promote the flow and exchange of the thin tear film, providing the tear film with the pressure of the upper eyelid closing during blinking. The downward closing of the eyelid allows the tear film to be squeezed from the outside through one channel into the interior between the contact lens 100 and the cornea, and then flows out through the other channel for exchange. This helps improve the oxygen exchange efficiency and moisturizing effect of the cornea covered by the contact lens 100.

[0100] In the contact lens 100 of the present invention, as Figure 1CAs shown, at least one posterior surface of the flow channel adjacent to the rounded corner surface 160 in the rounded corner region 140 is the first posterior surface 171b. This allows the contact lens 100 to further incorporate a flow channel design with tear exchange functionality, enhancing the tear exchange effect between the contact lens 100 and the eye. The radius of curvature of the first posterior surface 171b is RB1f, which satisfies the following condition: 0 ≤ RB1f < infinity. Therefore, the optimally designed radius of curvature of the first posterior surface 171b of the rounded corner region 140 of the contact lens 100 optimizes the surface shape of the first posterior surface 171b, helping to improve the flow of thin tear film between the inner and outer parts of the contact lens 100 and the corner of the eye. When the upper limit falls outside this range, the posterior surface of the flow channel may not be smoothly adjacent, causing design and manufacturing difficulties; conversely, when the lower limit falls outside this range, the flow channel shape may be unsatisfactory, resulting in insufficient tear flow. Alternatively, it can satisfy the following condition: 0.10 ≤ RB1f ≤ 1.00E+10. Alternatively, it may satisfy the following condition: 0.50≤RB1f≤10.00. Or, it may satisfy the following condition: 1.00≤RB1f≤5.00.

[0101] In the contact lens 100 of the present invention, the anterior surface 150, the rounded corner surface 160, and the first channel rear surface 171b can form a continuous spherical design, wherein all channel rear surfaces in the rear surface 170 can be spherical, aspherical, or planar. This allows for optimal design of the plurality of channel rear surfaces in the rounded corner area 140 of the contact lens 100 with spherical, aspherical, or planar surface shapes, and adjustment of the optimal channel rear surface configuration helps improve tear flow in the contact lens 100. Alternatively, at least one of the channel rear surfaces in the rear surface 170 that is not the first channel rear surface 171b is spherical. Alternatively, at least one of the channel rear surfaces in the rear surface 170 that is not the first channel rear surface 171b is aspherical. Alternatively, at least one of the channel rear surfaces in the rear surface 170 that is not the first channel rear surface 171b is planar. Alternatively, at least one of the rear surfaces of all flow channels in rear surface 170 that are not the first flow channel rear surface 171b is a spherical surface and at least one is an aspherical surface. Alternatively, at least two of the rear surfaces of all flow channels in rear surface 170 that are not the first flow channel rear surface 171b are spherical surfaces. Alternatively, at least two of the rear surfaces of all flow channels in rear surface 170 that are not the first flow channel rear surface 171b are aspherical surfaces. Alternatively, at least two of the rear surfaces of all flow channels in rear surface 170 that are not the first flow channel rear surface 171b are planar surfaces. Alternatively, at least one of the rear surfaces of all flow channels in rear surface 170 that are not the first flow channel rear surface 171b are a spherical surface and at least one is a planar surface. Alternatively, at least three of the rear surfaces of all flow channels in rear surface 170 that are not the first flow channel rear surface 171b are planar surfaces. Alternatively, at least one of the rear surfaces of all flow channels in rear surface 170 that are not the first flow channel rear surface 171b are an aspherical surface and at least one is a planar surface. Alternatively, at least four of the rear surfaces of all flow channels in rear surface 170 that are not the first flow channel rear surface 171b are planar. Alternatively, at least one of the rear surfaces of all flow channels in rear surface 170 that are not the first flow channel rear surface 171b is spherical, at least one is aspherical, and at least one is planar.

[0102] exist Figure 1C In the embodiments, the rear surface of the flow channel of the rear surface 170 of the contact lens 100, from the rounded corner surface 160 to the center point of the contact lens 100, can be sequentially a first flow channel rear surface 171b, a second flow channel rear surface 172b, a third flow channel rear surface 173b, a fourth flow channel rear surface 174b, and a fifth flow channel rear surface 175b, but the present invention is not limited thereto. Furthermore, in Figure 1C In the diagram, the lines between the first flow channel rear surface 171b, the second flow channel rear surface 172b, the third flow channel rear surface 173b, the fourth flow channel rear surface 174b, and the fifth flow channel rear surface 175b are only used to indicate the range of the five flow channel rear surfaces, and the present invention is not limited thereto.

[0103] In the contact lens 100 of the present invention, the radii of curvature of the first support rear surface 171a and the first flow channel rear surface 171b can be equal to the base arc of the contact lens 100, but the radii of curvature of the support rear surface that is not the first support rear surface 171a and the flow channel rear surface that is not the first flow channel rear surface 171b are not equal to the base arc of the contact lens 100.

[0104] In the contact lens 100 of the present invention, the contact lens 100 may have a rotationally stable structure, and at least one flow channel rear surface in the rounded corner region 140 may be configured as asymmetric. This helps maintain the asymmetric flow channel position, which promotes the flow and exchange of the tear film, allowing more tears to flow into the lens from the top and out from the bottom, or improving flowability through more flow channels, thereby facilitating the flow and exchange of the tear film.

[0105] Please refer to Figure 2 It depicts a user wearing Figure 1A A diagram illustrating the effect of contact lenses at 100%. (See diagram for example.) Figure 2 As shown, the supporting rear surface of the rear surface 170 forms a supporting region 170A, and the flow channel rear surface of the rear surface 170 forms a flow channel region 170B. The supporting region 170A and the flow channel region 170B do not overlap, and there is a transition region 170C of appropriate width between the supporting region 170A and the flow channel region 170B. The transition region 170C is used to smoothly connect the supporting region 170A and the flow channel region 170B. When viewed from above, the number of lenses on the ring in the rounded corner area 140 can be designed as a symmetrical even number, a balanced odd number, an asymmetrical odd number, or an asymmetrical even number. For example, more on the forehead side than the labial side, more on the labial side than the forehead side, more on the temporal side than the nasal side, or more on the nasal side than the temporal side. Their positions can be designed symmetrically or asymmetrically, and their width can be adjusted as needed. This helps to increase the flow of tears from the upper part into the lens, then through the lower part as an outlet, or through a wider flow channel to improve flowability. Furthermore, the pressure of the upper eyelid closing during blinking forces tears to be squeezed from the top down into the space between the contact lens 100 and the cornea via one flow channel, and then out through the other flow channel for exchange. This helps to improve the oxygen exchange efficiency and moisturizing effect of the cornea covered by the contact lens 100. Additionally, Figure 2 In the embodiments, the support region 170A, the flow channel region 170B and the transition region 170C may also be multiple, but the present invention is not limited thereto.

[0106] The various technical features of the contact lenses of the present invention can be combined and configured to achieve corresponding effects.

[0107] The contact lens according to the present invention can be an astigmatism corrective contact lens. This provides effective corrective treatment for astigmatism patients, resulting in clear vision.

[0108] According to the present invention, the contact lens may be a multifocal contact lens that controls, slows down, delays, or prevents the progression of myopia. This provides the effect of myopia control and slowing down, thus controlling the problem of myopia progression in patients.

[0109] According to the present invention, the contact lens may be a continuously variable multifocal contact lens. This smooth zoom design allows for gentler refractive changes, improving peripheral vision clarity and reducing the likelihood of dizziness.

[0110] According to the present invention, the contact lens can be a myopia-correcting contact lens, a hyperopia-correcting contact lens, or a presbyopia-correcting contact lens. This provides effective corrective treatment for myopic, hyperopic, or presbyopic patients, offering clear vision. Alternatively, the contact lens of the present invention can be an orthokeratology (corneal reshaping) contact lens.

[0111] The radius of curvature described in this invention is defined as the radius of curvature through a cross-sectional view of the center point of the contact lens, while the width is measured and calculated as the perpendicular distance from the optical axis through the center point of the contact lens.

[0112] The diopter of the contact lenses described in this invention is expressed as a D value. For example, the central diopter of a lens for correcting myopia is a negative value, and the central diopter of a lens for correcting hyperopia is a positive value.

[0113] In this invention, the worsening of myopia refers to an increase in the degree of myopia. The larger the absolute value of the negative refractive power, such as from -0.5D to -2.0D.

[0114] In this invention, the front surface of a contact lens refers to the surface away from the cornea, and the back surface refers to the surface close to the cornea.

[0115] The surface shape variations of contact lenses described in this invention, such as spherical, planar, or aspherical, are based on the curved surface shape viewed through the center.

[0116] The contact lenses described in this invention can be colored lenses composed of at least two layers; colored contact lenses can be composed of two layers, such as a lens body layer and a color layer; colored contact lenses can be composed of three layers, such as a lens body layer, a color layer, and an anti-fall-off protective layer; colored contact lenses can be composed of four layers, such as a lens body layer, a first color layer, a second color layer, and an anti-fall-off protective layer; colored contact lenses can be composed of five layers, such as a lens body layer, a first color layer, a second color layer, a third color layer, and an anti-fall-off protective layer; colored contact lenses can also be composed of another five layers, such as a lens body layer, a first color layer, a separating layer, a second color layer, and an anti-fall-off protective layer.

[0117] The hydrogel used in this invention for preparing contact lenses can be, but is not limited to, contact lens materials classified by the U.S. Food and Drug Administration (FDA) as Group 1, i.e., nonionic polymers with low water content (less than 50% by weight), such as Helfilcon A&B, Hioxifilcon B, Mafilcon, Polymacon, Tefilcon, Tetrafilcon A, etc. Alternatively, the aforementioned hydrogel can be contact lens materials classified by the FDA as Group 2, i.e., nonionic polymers with high water content (greater than 50% by weight), such as Acofilcon A, Alfafilcon A, Hilafilcon B, Hioxifilcon A, Hioxifilcon B, Hioxifilcon D, Nelfilcon A, Nesofilcon A, Omafilcon A, and Samfilcon A, etc. Alternatively, the aforementioned hydrogel can be contact lens materials classified by the FDA as Group 3, i.e., ionic polymers with low water content (less than 50% by weight), such as Deltafilcon A, etc. Alternatively, the aforementioned hydrogel can be a Group 4 contact lens material classified by the U.S. Food and Drug Administration, namely an ionic polymer with a high water content (greater than 50% by weight), such as Etafilcon A, Focofilcon A, Methafilcon A, Methafilcon B, Ocufilcon A, Ocufilcon B, Ocufilcon C, Ocufilcon D, Ocufilcon E, Phemfilcon A, Vifilcon A, etc.

[0118] The silicone hydrogel for contact lenses described in this invention may be, but is not limited to, contact lens materials classified into Group 5 by the U.S. Food and Drug Administration (USFDA), such as Balafilcon A, Comfilcon A, Efrofilcon A, Enfilcon A, Galyfilcon A, Lotrafilcon A, Lotrafilcon B, Narafilcon A, Narafilcon B, Senofilcon A, Delefilcon A, Somofilcon A, etc.

[0119] The rotational stabilization structure of the contact lens described in this invention can be a lower part thickened for weight support, a side part thickened for balance, or a top and bottom thinned for stability.

[0120] This invention provides a contact lens product comprising the aforementioned contact lens, a buffer solution, and packaging. The contact lens is immersed in the buffer solution, and the contact lens and buffer solution are contained in the packaging. The contact lens comprises a beneficial agent, a wetting agent, and a dye or a myopia control agent. The addition of the beneficial agent provides antibacterial, therapeutic, and nourishing effects to the eyes; the addition of the wetting agent enhances moisturizing, hydrophilic, and lubricating effects; the addition of the dye provides light-blocking, stray light elimination, and aesthetic effects; and the addition of the myopia control agent provides myopia control and mitigation effects.

[0121] The present invention also provides a contact lens product comprising the aforementioned contact lens, a buffer solution, and a package. The contact lens is immersed in the buffer solution, and the contact lens and the buffer solution are contained in the package. The buffer solution comprises a stimulating agent, a humectant, a pigment, or a myopia control agent. The addition of the stimulating agent provides antibacterial, therapeutic, and nourishing effects to the eyes; the addition of the humectant enhances moisturizing, hydrophilic, and lubricating effects; and the addition of the myopia control agent provides myopia control and mitigation effects.

[0122] The contact lenses or buffer solutions described in this invention may contain: monomers, UV absorbers, blue absorbers, auxiliaries, humectants, pigments, myopia control agents, salts of weak acids and their conjugate bases, salts of weak bases and their conjugate acids, anionic agents, cationic agents, and other auxiliaries. The packaging may be made of a combination of a plastic container and an aluminum foil cover. The plastic container may be made of polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), or other plastic materials. The aluminum foil cover may be a composite aluminum foil material with a plastic coating.

[0123] The monomers of the contact lenses described in this invention may include: hydroxyethyl methacrylate (HEMA), methacrylic acid (MAA), 2-methyl-2-acrylate-2,3-dihydroxypropyl ester (GMA), N-vinyl-2-pyrrolidinone (NVP), methyl methacrylate (MMA), N,N-dimethylacrylamide (DMAA), etc.

[0124] The UV absorber for contact lenses described in this invention may include: 2-[2-hydroxy-5-[2-(methacryloxy)ethyl]phenyl]-2H-benzotriazole (2-(2'-Hydroxy-5'-methacryloxyethylphenyl)-2H-benzotriazole), 2-(4-benzoyl-3-hydroxyphenoxy)ethyl acrylate (2-(4-Benzoyl-3-hydroxyphenoxy)ethyl acrylate), etc.

[0125] The blue light absorber for contact lenses described in this invention may include: tetraphenyldimethylacrylate (4-(phenyldiazenyl)phenyl methacrylate), etc.

[0126] The contact lens aids described in this invention may include: antibiotics, bacteriostatic agents, antiviral agents, antifungal drugs, antiallergic agents, steroids, non-steroidal anti-inflammatory drugs (NSAIDs), surfactants, miotics, enzyme inhibitors, anesthetics, vasoconstrictors, vitamins, antioxidants, and nutrients.

[0127] The humectant for contact lenses described in this invention may include: 2-methacryloyloxyphosphorylcholine (MPC), hyaluronic acid, etc.

[0128] The pigments in the contact lenses described in this invention may include: anthocyanidin, beta-carotene, curcumin, luciferin, lutein, lycopene, phycobillin, phycoerythrim, phycocyanin, riboflavin (Vitamin B2), zeaxanthin, photochromic dyes, thermochromic dyes, and their derivatives.

[0129] The myopia control agents for contact lenses described in this invention may include: cycloplegic agents, pupil dilators (mydriatics), selective / non-selective muscarinic receptor antagonists, etc., which have the effect of controlling, slowing down, delaying or preventing the aggravation of myopia. For example, by blocking the M-type muscarinic receptors of the parasympathetic nerve, the ciliary muscle that controls the pupil can be relaxed and paralyzed, thereby dilating the pupil. Examples include atropine ((3-endo)-8-Methyl-8-azabicyclo[3.2.1]oct-3-yltropate), atropine sulfate, cyclopentolate (2-(Dimethylamino)ethyl(1-hydroxycyclopentyl)(phenyl)acetate), cyclopentolate HCl, eucatropine (1,2,2,6-Tetramethyl-4-piperidinylhydroxy(phenyl)acetate), homatropine ((3-endo)-8-Methyl-8-azabicyclo[3.2.1]oct-3-ylhydroxy(phenyl)acetate), nuvenzepine, and phenylephrine hydrochloride. HCl), Pirenzepine, Raceanisodamine, Rispenzepine, Scopolamine ((1R,2R,4S,5S,7s)-9-Methyl-3-oxa-9-azatricyclo[3.3.1.02,4]non-7-yl(2S)-3-hydroxy-2-phenylpropanoate), Scopolamine hydrobromide (Scopolamine HBr), Telenzepine, and Tropicamide (N-Ethyl-3-hydroxy-2-phenyl-N-(4-pyridinylmethyl)propanamide), and their salts.

[0130] Other beneficial agents for contact lenses described in this invention may include: apomorphine, bromocriptine, dopamine receptor agonists, levodopa, or quinpirole, etc.

[0131] The various technical features of the contact lenses of the present invention can be combined and configured to achieve corresponding effects.

[0132] Based on the above implementation methods, specific embodiments are presented below and described in detail with reference to the accompanying drawings.

[0133] <First Embodiment>

[0134] Please refer to Figure 3A , Figure 3B and Figure 3C , Figure 3A This is a schematic diagram illustrating a contact lens 200 according to a first embodiment of the present invention. Figure 3B It is a drawing Figure 3A A cross-sectional view of the 200-type contact lens along section line 3b-3b. Figure 3C It is a drawing Figure 3B An enlarged schematic diagram of the rounded corner area 240 of the contact lens 200. The contact lens 200 includes, from the center outwards, a central area (not shown in the figure), a ring area (not shown in the figure), a peripheral area (not shown in the figure), and a rounded corner area 240.

[0135] The rounded corner area 240 includes a front surface 250, a rounded corner surface 260, and a rear surface 270, wherein the rounded corner surface 260 is adjacent to the front surface 250 and the rear surface 270, and the rear surface 270 includes at least one supporting rear surface (unless otherwise labeled). Figure 3C As shown, in the first embodiment, the rear surface 270 includes only one supporting rear surface, which is the first supporting rear surface in the first embodiment (that is, the supporting rear surface in the first embodiment is formed by the first supporting rear surface, and will be described below using the first supporting rear surface), and the first supporting rear surface is adjacent to the rounded corner surface 260. The radius of curvature of the rounded corner surface 260 in the rounded corner area 240 is RE, the radius of curvature of the front surface 250 in the rounded corner area 240 is RF, and the radius of curvature of the first supporting rear surface is RB1s. The values ​​and designs of parameters such as RE, RF, RB1s, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) in the first embodiment are recorded in Table 1.

[0136]

[0137] In the first embodiment, the maximum width of the front surface 250 in the rounded corner area 240 is WRF, the maximum width of the rounded corner surface 260 in the rounded corner area 240 is WRE, the maximum width of all supporting rear surfaces in the rear surface 270 is WRBmax (i.e., the width of the first supporting rear surface in the first embodiment), the largest of WRF, WRE and WRBmax is WRMax, the width of the rounded corner area 240 is WRZ, and the maximum diameter of the contact lens 200 is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the first embodiment are recorded in Table 2.

[0138]

[0139]

[0140] <Second Embodiment>

[0141] Please refer to Figure 4A , Figure 4B and Figure 4C , Figure 4A This is a schematic diagram illustrating a contact lens 300 according to a second embodiment of the present invention. Figure 4B It is a drawing Figure 4A A cross-sectional view of the 300 contact lens along section line 4b-4b. Figure 4C It is a drawing Figure 4B An enlarged schematic diagram of the rounded corner area 340 of the contact lens 300. The contact lens 300 includes, from the center outwards, a central area (not shown in the figure), a ring-shaped area (not shown in the figure), a peripheral area (not shown in the figure), and a rounded corner area 340.

[0142] The rounded corner area 340 includes a front surface 350, a rounded corner surface 360, and a rear surface 370, wherein the rounded corner surface 360 ​​is adjacent to the front surface 350 and the rear surface 370, and the rear surface 370 includes at least one supporting rear surface (unless otherwise labeled). Figure 4CAs shown, in the second embodiment, the rear surface 370 includes only one supporting rear surface, which is the same as the first supporting rear surface in the second embodiment (that is, the supporting rear surface in the second embodiment is formed by the first supporting rear surface, and will be described below using the first supporting rear surface), and the first supporting rear surface is adjacent to the rounded corner surface 360. The radius of curvature of the rounded corner surface 360 ​​in the rounded corner area 340 is RE, the radius of curvature of the front surface 350 in the rounded corner area 340 is RF, and the radius of curvature of the first supporting rear surface is RB1s. The values ​​and designs of parameters such as RE, RF, RB1s, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) in the second embodiment are recorded in Table 3.

[0143]

[0144] In the second embodiment, the maximum width of the front surface 350 in the rounded corner area 340 is WRF, the maximum width of the rounded corner surface 360 ​​in the rounded corner area 340 is WRE, the maximum width of all supporting rear surfaces in the rear surface 370 is WRBmax (i.e., the width of the first supporting rear surface in the second embodiment), the largest of WRF, WRE and WRBmax is WRMax, the width of the rounded corner area 340 is WRZ, and the maximum diameter of the contact lens 300 is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the second embodiment are recorded in Table 4.

[0145]

[0146] <Third Embodiment>

[0147] Please refer to Figure 5A , Figure 5B and Figure 5C , Figure 5A This is a schematic diagram illustrating a contact lens 400 according to a third embodiment of the present invention. Figure 5B It is a drawing Figure 5A A cross-sectional view of the 400 medium-sized contact lens along section line 5b-5b. Figure 5C It is a drawing Figure 5B An enlarged schematic diagram of the rounded corner area 440 of the contact lens 400. The contact lens 400 includes, from the center outwards, a central area (not shown in the figure), a ring area (not shown in the figure), a peripheral area (not shown in the figure), and a rounded corner area 440.

[0148] The rounded corner area 440 includes a front surface 450, a rounded corner surface 460, and a rear surface 470, wherein the rounded corner surface 460 is adjacent to the front surface 450 and the rear surface 470, and the rear surface 470 includes at least one supporting rear surface (unless otherwise labeled). Figure 5C As shown, in the third embodiment, the supporting rear surface of the rear surface 470 includes only one supporting rear surface, which is the first supporting rear surface in the third embodiment (that is, the supporting rear surface in the third embodiment is formed by the first supporting rear surface, and the following will describe it using the first supporting rear surface), and the first supporting rear surface is adjacent to the rounded corner surface 460. The radius of curvature of the rounded corner surface 460 in the rounded corner area 440 is RE, the radius of curvature of the front surface 450 in the rounded corner area 440 is RF, and the radius of curvature of the first supporting rear surface is RB1s. The values ​​and designs of parameters such as RE, RF, RB1s, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) in the third embodiment are recorded in Table 5.

[0149]

[0150] In the third embodiment, the maximum width of the front surface 450 in the rounded corner area 440 is WRF, the maximum width of the rounded corner surface 460 in the rounded corner area 440 is WRE, the maximum width of all supporting rear surfaces in the rear surface 470 is WRBmax (which is the width of the first supporting rear surface in the third embodiment), the largest of WRF, WRE and WRBmax is WRMax, the width of the rounded corner area 440 is WRZ, and the maximum diameter of the contact lens 400 is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the third embodiment are recorded in Table 6.

[0151]

[0152] <Fourth Embodiment>

[0153] Please refer to Figure 6A , Figure 6B and Figure 6C , Figure 6A This is a schematic diagram illustrating a contact lens 500 according to a fourth embodiment of the present invention. Figure 6B It is a drawing Figure 6A A cross-sectional view of the 500 contact lens along section line 6b-6b. Figure 6C It is a drawing Figure 6BAn enlarged schematic diagram of the rounded corner area 540 of the contact lens 500. The contact lens 500 includes, from the center outwards, a central area (not shown in the figure), a ring-shaped area (not shown in the figure), a peripheral area (not shown in the figure), and a rounded corner area 540.

[0154] The rounded corner area 540 includes a front surface 550, a rounded corner surface 560, and a rear surface 570, wherein the rounded corner surface 560 is adjacent to the front surface 550 and the rear surface 570, and the rear surface 570 includes at least one supporting rear surface (unless otherwise labeled). Figure 6C As shown, in the fourth embodiment, the supporting rear surface of the rear surface 570 includes only one supporting rear surface, which is the first supporting rear surface in the fourth embodiment (that is, the supporting rear surface in the fourth embodiment is formed by the first supporting rear surface, and the following will describe it using the first supporting rear surface), and the first supporting rear surface is adjacent to the rounded corner surface 560. The radius of curvature of the rounded corner surface 560 in the rounded corner area 540 is RE, the radius of curvature of the front surface 550 in the rounded corner area 540 is RF, and the radius of curvature of the first supporting rear surface is RB1s. The values ​​and designs of parameters such as RE, RF, RB1s, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) in the fourth embodiment are recorded in Table 7.

[0155]

[0156]

[0157] In the fourth embodiment, the maximum width of the front surface 550 in the rounded corner area 540 is WRF, the maximum width of the rounded corner surface 560 in the rounded corner area 540 is WRE, the maximum width of all supporting rear surfaces in the rear surface 570 is WRBmax (which is the width of the first supporting rear surface in the fourth embodiment), the largest of WRF, WRE and WRBmax is WRMax, the width of the rounded corner area 540 is WRZ, and the maximum diameter of the contact lens 500 is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the fourth embodiment are recorded in Table 8.

[0158]

[0159] <Fifth Embodiment>

[0160] Please refer to Figure 7A , Figure 7B and Figure 7C , Figure 7AThis is a schematic diagram illustrating a contact lens 600 according to a fifth embodiment of the present invention. Figure 7B It is a drawing Figure 7A A cross-sectional view of the 600 contact lens along section line 7b-7b. Figure 7C It is a drawing Figure 7B An enlarged schematic diagram of the rounded corner area 640 of the contact lens 600. The contact lens 600 includes, from the center outwards, a central area (not shown in the figure), a ring area (not shown in the figure), a peripheral area (not shown in the figure), and a rounded corner area 640.

[0161] The rounded corner area 640 includes a front surface 650, a rounded corner surface 660, and a rear surface 670, wherein the rounded corner surface 660 is adjacent to the front surface 650 and the rear surface 670, and the rear surface 670 includes at least one supporting rear surface (unless otherwise labeled). Figure 7C As shown, in the fifth embodiment, the supporting rear surface of the rear surface 670 includes only one supporting rear surface, which is the first supporting rear surface in the fifth embodiment (that is, the supporting rear surface in the fifth embodiment is formed by the first supporting rear surface, and will be described below using the first supporting rear surface), and the first supporting rear surface is adjacent to the rounded corner surface 660. The radius of curvature of the rounded corner surface 660 in the rounded corner area 640 is RE, the radius of curvature of the front surface 650 in the rounded corner area 640 is RF, and the radius of curvature of the first supporting rear surface is RB1s. The values ​​and designs of parameters such as RE, RF, RB1s, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) in the fifth embodiment are recorded in Table 9.

[0162]

[0163] In the fifth embodiment, the maximum width of the front surface 650 in the rounded corner area 640 is WRF, the maximum width of the rounded corner surface 660 in the rounded corner area 640 is WRE, the maximum width of all supporting rear surfaces in the rear surface 670 is WRBmax (which is the width of the first supporting rear surface in the fifth embodiment), the largest of WRF, WRE and WRBmax is WRMax, the width of the rounded corner area 640 is WRZ, and the maximum diameter of the contact lens 600 is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the fifth embodiment are recorded in Table 10.

[0164]

[0165] <Sixth Embodiment>

[0166] The contact lens of the sixth embodiment (not shown) includes, from the center outwards, a central region, a ring region, a peripheral region, and a rounded corner region. The rounded corner region includes a front surface, a rounded corner facet, and a rear surface, wherein the rounded corner facet is adjacent to the front surface and the rear surface, and the rear surface includes a supporting rear surface.

[0167] In the contact lens of the sixth embodiment, the supporting rear surface of the rear surface includes only one supporting rear surface, which is the first supporting rear surface in the sixth embodiment (that is, the supporting rear surface of the sixth embodiment is formed by the first supporting rear surface, and will be described below using the first supporting rear surface), and the first supporting rear surface is adjacent to the rounded corner surface. The radius of curvature of the rounded corner surface in the rounded corner area is RE, the radius of curvature of the front surface in the rounded corner area is RF, and the radius of curvature of the first supporting rear surface is RB1s. The values ​​and designs of parameters such as RE, RF, RB1s, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) in the sixth embodiment are recorded in Table 11.

[0168]

[0169] In the contact lens of the sixth embodiment, the maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax (which is the width of the first supporting rear surface in the sixth embodiment), the largest of WRF, WRE and WRBmax is WRMax, the width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL. The values ​​and design of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the sixth embodiment are recorded in Table Twelve.

[0170]

[0171] <Seventh Embodiment>

[0172] The contact lens of the seventh embodiment (not shown) sequentially comprises a central region, a ring-shaped region, a peripheral region, and a rounded corner region from the center outwards. The rounded corner region includes a front surface, a rounded corner surface, and a rear surface, wherein the rounded corner surface is adjacent to the front surface and the rear surface. In the seventh embodiment, the rear surface includes two supporting rear surfaces, and the two supporting rear surfaces are, in order from the rounded corner surface to the center point of the contact lens, a first supporting rear surface and a second supporting rear surface, and the first supporting rear surface is adjacent to the rounded corner surface.

[0173] In the contact lens of the seventh embodiment, the radius of curvature of the rounded corner surface in the rounded corner area is RE, the radius of curvature of the front surface in the rounded corner area is RF, the radius of curvature of the first support rear surface is RB1s, and the radius of curvature of the second support rear surface is RB2s. The values ​​and designs of parameters such as RE, RF, RB1s, RB2s, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) of the seventh embodiment are recorded in Table Thirteen.

[0174]

[0175] In the contact lens of the seventh embodiment, the maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax (in the seventh embodiment, the largest of the widths of the first supporting rear surface and the second supporting rear surface), the largest of WRF, WRE and WRBmax is WRMax, the width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the seventh embodiment are recorded in Table 14.

[0176]

[0177] <Eighth Embodiment>

[0178] The contact lens of the eighth embodiment (not shown) sequentially comprises a central region, a ring-shaped region, a peripheral region, and a rounded corner region from the center outwards. The rounded corner region includes a front surface, a rounded corner surface, and a rear surface, wherein the rounded corner surface is adjacent to the front surface and the rear surface. In the eighth embodiment, the rear surface includes three supporting rear surfaces, and the three supporting rear surfaces are, in order from the rounded corner surface to the center point of the contact lens, a first supporting rear surface, a second supporting rear surface, and a third supporting rear surface, and the first supporting rear surface is adjacent to the rounded corner surface.

[0179] In the contact lens of the eighth embodiment, the radius of curvature of the rounded corner surface in the rounded corner area is RE, the radius of curvature of the front surface in the rounded corner area is RF, the radius of curvature of the first support rear surface is RB1s, the radius of curvature of the second support rear surface is RB2s, and the radius of curvature of the third support rear surface is RB3s. The values ​​and designs of parameters such as RE, RF, RB1s, RB2s, RB3s, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) of the eighth embodiment are recorded in Table 15.

[0180]

[0181] In the contact lens of the eighth embodiment, the maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax (in the eighth embodiment, the largest of the widths of the first supporting rear surface, the second supporting rear surface, and the third supporting rear surface), the largest of WRF, WRE, and WRBmax is WRMax, the width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the eighth embodiment are recorded in Table 16.

[0182]

[0183] <Ninth Embodiment>

[0184] The contact lens of the ninth embodiment (not shown) sequentially comprises a central region, a ring-shaped region, a peripheral region, and a rounded corner region from the center outwards. The rounded corner region includes a front surface, a rounded corner surface, and a rear surface, wherein the rounded corner surface is adjacent to the front surface and the rear surface. In the ninth embodiment, the rear surface includes four supporting rear surfaces, and the four supporting rear surfaces are, in order from the rounded corner surface to the center point of the contact lens, a first supporting rear surface, a second supporting rear surface, a third supporting rear surface, and a fourth supporting rear surface, and the first supporting rear surface is adjacent to the rounded corner surface.

[0185] In the contact lens of the ninth embodiment, the radius of curvature of the rounded corner surface in the rounded corner area is RE, the radius of curvature of the front surface in the rounded corner area is RF, the radius of curvature of the first support rear surface is RB1s, the radius of curvature of the second support rear surface is RB2s, the radius of curvature of the third support rear surface is RB3s, and the radius of curvature of the fourth support rear surface is RB4s. The values ​​and designs of parameters such as RE, RF, RB1s, RB2s, RB3s, RB4s, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) of the ninth embodiment are recorded in Table 17.

[0186]

[0187] In the contact lens of the ninth embodiment, the maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax (in the ninth embodiment, the largest of the widths of the first supporting rear surface, the second supporting rear surface, the third supporting rear surface, and the fourth supporting rear surface), the largest of WRF, WRE, and WRBmax is WRMax, the width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the ninth embodiment are recorded in Table 18.

[0188]

[0189] <Tenth Embodiment>

[0190] The contact lens of the tenth embodiment (not shown) sequentially includes a central region, a ring-shaped region, a peripheral region, and a rounded corner region from the center outwards. The rounded corner region includes a front surface, a rounded corner surface, and a rear surface, wherein the rounded corner surface is adjacent to the front surface and the rear surface. In the tenth embodiment, the rear surface includes five supporting rear surfaces, and the five supporting rear surfaces are, in order from the rounded corner surface to the center point of the contact lens, a first supporting rear surface, a second supporting rear surface, a third supporting rear surface, a fourth supporting rear surface, and a fifth supporting rear surface, and the first supporting rear surface is adjacent to the rounded corner surface.

[0191] In the contact lens of the tenth embodiment, the radius of curvature of the rounded corner surface in the rounded corner area is RE, the radius of curvature of the front surface in the rounded corner area is RF, the radius of curvature of the first support rear surface is RB1s, the radius of curvature of the second support rear surface is RB2s, the radius of curvature of the third support rear surface is RB3s, the radius of curvature of the fourth support rear surface is RB4s, and the radius of curvature of the fifth support rear surface is RB5s. The values ​​and designs of parameters such as RE, RF, RB1s, RB2s, RB3s, RB4s, RB5s, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) of the tenth embodiment are recorded in Table 19.

[0192]

[0193] In the contact lens of the tenth embodiment, the maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax (in the tenth embodiment, the largest of the widths of the first supporting rear surface, the second supporting rear surface, the third supporting rear surface, the fourth supporting rear surface, and the fifth supporting rear surface), the largest of WRF, WRE, and WRBmax is WRMax, the width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the tenth embodiment are recorded in Table 20.

[0194]

[0195] <Eleventh Embodiment>

[0196] The contact lens of the eleventh embodiment (not shown) sequentially comprises a central region, a ring region, a peripheral region, and a rounded corner region from the center outwards. The rounded corner region includes a front surface, a rounded corner surface, and a rear surface, wherein the rounded corner surface is adjacent to the front surface and the rear surface. In the eleventh embodiment, the rear surface only includes a supporting rear surface and a channel rear surface. The supporting rear surface in the eleventh embodiment is the first supporting rear surface (that is, the supporting rear surface of the eleventh embodiment is formed by the first supporting rear surface, and will be described below using the first supporting rear surface), and the channel rear surface is the first channel rear surface (that is, the channel rear surface of the eleventh embodiment is formed by the first channel rear surface, and will be described below using the first channel rear surface), and the first supporting rear surface and the first channel rear surface are adjacent to the rounded corner surface.

[0197] In the contact lens of the eleventh embodiment, the radius of curvature of the rounded corner surface in the rounded corner area is RE, the radius of curvature of the front surface in the rounded corner area is RF, the radius of curvature of the rear surface of the first support is RB1s, and the radius of curvature of the rear surface of the first flow channel is RB1f. The values ​​and designs of parameters such as RE, RF, RB1s, RB1f, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) of the eleventh embodiment are recorded in Table 21.

[0198]

[0199] In the contact lens of the eleventh embodiment, the maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax (i.e., the width of the first supporting rear surface in the eleventh embodiment), the largest of WRF, WRE and WRBmax is WRMax, the width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the eleventh embodiment are recorded in Table 22.

[0200]

[0201]

[0202] <Twelfth Embodiment>

[0203] The contact lens of the twelfth embodiment (not shown) includes, from the center outwards, a central region, an annular region, a peripheral region, and a rounded corner region. The rounded corner region includes a front surface, a rounded corner surface, and a rear surface, wherein the rounded corner surface is adjacent to the front surface and the rear surface. In the twelfth embodiment, the rear surface includes two supporting rear surfaces and a channel rear surface. The two supporting rear surfaces are, from the rounded corner surface to the center point of the contact lens, a first supporting rear surface and a second supporting rear surface, respectively. The channel rear surface is the first channel rear surface (that is, the channel rear surface of the twelfth embodiment is formed by the first channel rear surface, and will be described hereinafter using the first channel rear surface), and the first supporting rear surface and the first channel rear surface are adjacent to the rounded corner surface.

[0204] In the contact lens of the twelfth embodiment, the radius of curvature of the rounded corner surface in the rounded corner area is RE, the radius of curvature of the front surface in the rounded corner area is RF, the radius of curvature of the rear surface of the first support is RB1s, the radius of curvature of the rear surface of the second support is RB2s, and the rear surface of the first flow channel is RB1f. The values ​​and designs of parameters such as RE, RF, RB1s, RB2s, RB1f, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) of the twelfth embodiment are recorded in Table 23.

[0205]

[0206] The rear surface of the first flow channel is a plane.

[0207] In the contact lens of the twelfth embodiment, the maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax (in the twelfth embodiment, the largest of the widths of the first supporting rear surface and the second supporting rear surface), the largest of WRF, WRE and WRBmax is WRMax, the width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the twelfth embodiment are recorded in Table 24.

[0208]

[0209] <Thirteenth Embodiment>

[0210] The contact lens of the thirteenth embodiment (not shown) includes, from the center outwards, a central region, a ring-shaped region, a peripheral region, and a rounded corner region. The rounded corner region includes a front surface, a rounded corner surface, and a rear surface, wherein the rounded corner surface is adjacent to the front surface and the rear surface. In the thirteenth embodiment, the rear surface includes three supporting rear surfaces and three channel rear surfaces. The three supporting rear surfaces are, from the rounded corners towards the center of the contact lens, a first supporting rear surface, a second supporting rear surface, and a third supporting rear surface. The three channel rear surfaces are, from the rounded corners towards the center of the contact lens, a first channel rear surface, a second channel rear surface, and a third channel rear surface. The first supporting rear surface and the first channel rear surface are adjacent to the rounded corner surface.

[0211] In the contact lens of the thirteenth embodiment, the radius of curvature of the rounded corner surface in the rounded corner area is RE, the radius of curvature of the front surface in the rounded corner area is RF, the radius of curvature of the first support rear surface is RB1s, the radius of curvature of the second support rear surface is RB2s, the third support rear surface is RB3s, the rear surface of the first flow channel is RB1f, the radius of curvature of the rear surface of the second flow channel is RB2f, and the rear surface of the third flow channel is RB3f. The values ​​and designs of parameters such as RE, RF, RB1s, RB2s, RB3s, RB1f, RB2f, RB3f, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) of the thirteenth embodiment are recorded in Table 25.

[0212]

[0213] Among them, the rear surface of the third support is a plane, the rear surface of the first flow channel is an aspherical surface, and the rear surface of the third flow channel is a plane.

[0214] In the contact lens of the thirteenth embodiment, the maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax (in the thirteenth embodiment, the largest of the widths of the first supporting rear surface, the second supporting rear surface, and the third supporting rear surface), the largest of WRF, WRE, and WRBmax is WRMax, the width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the thirteenth embodiment are recorded in Table 26.

[0215]

[0216] <Fourteenth Embodiment>

[0217] The contact lens of the fourteenth embodiment (not shown) includes, from the center outwards, a central region, a ring-shaped region, a peripheral region, and a rounded corner region. The rounded corner region includes a front surface, a rounded corner surface, and a rear surface, wherein the rounded corner surface is adjacent to the front surface and the rear surface. In the fourteenth embodiment, the rear surface includes four supporting rear surfaces and four channel rear surfaces. The four supporting rear surfaces are, in order from the rounded corners towards the center point of the contact lens, a first supporting rear surface, a second supporting rear surface, a third supporting rear surface, and a fourth supporting rear surface. The four channel rear surfaces are, in order from the rounded corners towards the center of the contact lens, a first channel rear surface, a second channel rear surface, a third channel rear surface, and a fourth channel rear surface. The first supporting rear surface and the first channel rear surface are adjacent to the rounded corner surface.

[0218] In the contact lens of the fourteenth embodiment, the radius of curvature of the rounded corner surface in the rounded corner area is RE, the radius of curvature of the front surface in the rounded corner area is RF, the radius of curvature of the first support rear surface is RB1s, the second support rear surface is RB2s, the third support rear surface is RB3s, the fourth support rear surface is RB4s, the radius of curvature of the first flow channel rear surface is RB1f, the second flow channel rear surface is RB2f, the third flow channel rear surface is RB3f, and the fourth flow channel rear surface is RB4f. The values ​​and designs of parameters such as RE, RF, RB1s, RB2s, RB3s, RB4s, RB1f, RB2f, RB3f, RB4f, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) of the fourteenth embodiment are recorded in Table 27.

[0219]

[0220] Among them, the rear surface of the second support is aspherical, the rear surface of the fourth support is aspherical, the rear surface of the second flow channel is aspherical, and the rear surface of the fourth flow channel is aspherical.

[0221] In the contact lens of the fourteenth embodiment, the maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax (in the fourteenth embodiment, the largest of the widths of the first supporting rear surface, the second supporting rear surface, the third supporting rear surface, and the fourth supporting rear surface), the largest of WRF, WRE, and WRBmax is WRMax, the width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the fourteenth embodiment are recorded in Table 28.

[0222]

[0223] <Fifteenth Embodiment>

[0224] The contact lens of the fifteenth embodiment (not shown) sequentially comprises a central region, a ring-shaped region, a peripheral region, and a rounded corner region from the center outwards. The rounded corner region comprises a front surface, a rounded corner surface, and a rear surface, wherein the rounded corner surface is adjacent to the front surface and the rear surface. In the fifteenth embodiment, the rear surface comprises five supporting rear surfaces and five channel rear surfaces. The five supporting rear surfaces are, in order from the rounded corners towards the center of the contact lens, a first supporting rear surface, a second supporting rear surface, a third supporting rear surface, a fourth supporting rear surface, and a fifth supporting rear surface. The five channel rear surfaces are, in order from the rounded corners towards the center of the contact lens, a first channel rear surface, a second channel rear surface, a third channel rear surface, a fourth channel rear surface, and a fifth channel rear surface. The first supporting rear surface and the first channel rear surface are adjacent to the rounded corner surface.

[0225] In the contact lens of the fifteenth embodiment, the radius of curvature of the rounded corner surface in the rounded corner region is RE, the radius of curvature of the front surface in the rounded corner region is RF, the radius of curvature of the first support rear surface is RB1s, the radius of curvature of the second support rear surface is RB2s, the radius of curvature of the third support rear surface is RB3s, the radius of curvature of the fourth support rear surface is RB4s, the radius of curvature of the fifth support rear surface is RB5s, the radius of curvature of the first flow channel rear surface is RB1f, the radius of curvature of the second flow channel rear surface is RB2f, the radius of curvature of the third flow channel rear surface is RB3f, and the radius of curvature of the fifth flow channel rear surface is RB5s. The rear surface of the fourth flow channel is RB4f, and the rear surface of the fifth flow channel is RB5f. The values ​​and design of parameters such as RE, RF, RB1s, RB2s, RB3s, RB4s, RB5s, RB1f, RB2f, RB3f, RB4f, RB5f, RF / RB1s, RB1s / RF, RF / RE, 1000×RE / RF, RB1s / RE, 1000×RE / RB1s, and RB1s / (RF×RE) of the fifteenth embodiment are recorded in Table 29.

[0226]

[0227] Among them, the rear surface of the third support is aspherical, the rear surface of the fourth support is planar, the rear surface of the second flow channel is planar, the rear surface of the third flow channel is planar, the rear surface of the fourth flow channel is planar, and the rear surface of the fifth flow channel is planar.

[0228] In the contact lens of the fifteenth embodiment, the maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax (in the fifteenth embodiment, the largest of the widths of the first supporting rear surface, the second supporting rear surface, the third supporting rear surface, the fourth supporting rear surface, and the fifth supporting rear surface), the largest of WRF, WRE, and WRBmax is WRMax, the width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL. The values ​​and designs of parameters such as WRF, WRE, WRBmax, WRMax, WRZ, DiL, 2×WRF / DiL, 2×WRE / DiL, 2×WRBmax / DiL, WRMax / WRZ, and 2×WRZ / DiL in the fifteenth embodiment are recorded in Table Thirty.

[0229]

[0230] Although the present invention has been disclosed above by way of embodiments, it is not intended to limit the present invention. Any person skilled in the art may make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A contact lens, characterized in that, From the center outwards, the following are included in order: A central region, containing a central point of the contact lens; A ring-shaped area surrounds the central area; A surrounding area, encircling the ring-shaped area; and A rounded corner area surrounds the peripheral area, and the rounded corner area includes a front surface, a rounded corner face and a rear surface, wherein the rounded corner face is adjacent to the front surface and the rear surface, and the rear surface includes at least one supporting rear surface. Wherein, the radius of curvature of the rounded surface in the rounded corner region is RE, the at least one supporting rear surface adjacent to the rounded corner surface in the rounded corner region is a first supporting rear surface, the radius of curvature of the first supporting rear surface is RB1s, and the radius of curvature of the front surface in the rounded corner region is RF, which satisfies the following conditions: 10.00≤RB1s / RE≤1.00E+5; and 0.10≤RB1s / (RF×RE)≤1.00E+05.

2. The contact lens according to claim 1, characterized in that, The radius of curvature of the front surface in the rounded corner region is RF, and the radius of curvature of the rear surface of the first support in the rounded corner region is RB1s, which satisfy the following conditions: 0.10≤RF / RB1s≤1.00E+10.

3. The contact lens according to claim 2, characterized in that, The maximum width of all the supported surfaces in the rounded corner area is WRBmax, and the maximum diameter of the contact lens is DiL, which satisfies the following conditions: 1% ≤ 2 × WRBmax / DiL ≤ 14%.

4. The contact lens according to claim 3, characterized in that, The radius of curvature of the rounded corner surface in the rounded corner region is RE, and the radius of curvature of the rear surface of the first support in the rounded corner region is RB1s, which satisfy the following conditions: RE <RB1s。 5. The contact lens according to claim 3, characterized in that, The radius of curvature of the front surface in the rounded corner region is RF, and the radius of curvature of the rear surface of the first support in the rounded corner region is RB1s, which satisfy the following conditions: RF <RB1s。 6. The contact lens according to claim 1, characterized in that, The rear surface also includes at least one flow channel rear surface.

7. The contact lens according to claim 6, characterized in that, The contact lens has a rotationally stable structure, and the rear surface of at least one flow channel in the rounded corner region is configured to be asymmetric.

8. The contact lens according to claim 1, characterized in that, This contact lens is an astigmatism corrective contact lens.

9. The contact lens according to claim 1, characterized in that, This contact lens is a multifocal contact lens designed to control, slow down, delay, or prevent the progression of myopia.

10. The contact lens according to claim 9, characterized in that, This contact lens is a multifocal contact lens with continuous zoom.

11. The contact lens according to claim 1, characterized in that, The contact lens can be a myopia-correcting contact lens, a hyperopia-correcting contact lens, or a presbyopia-correcting contact lens.

12. A contact lens product, characterized in that, Include: The contact lens as described in claim 1; A buffer solution in which the contact lens is immersed; and A package in which the contact lens and the buffer solution are contained; The contact lens contains a stimulant, a humectant, a pigment, or a myopia control agent.

13. A contact lens product, characterized in that, Include: The contact lens as described in claim 1; A buffer solution in which the contact lens is immersed; and A package in which the contact lens and the buffer solution are contained; The buffer solution contains a stimulant, a humectant, a pigment, or a myopia control agent.

14. A contact lens, characterized in that, From the center outwards, the following are included in order: A central region, containing a central point of the contact lens; A ring-shaped area surrounds the central area; A surrounding area, encircling the ring-shaped area; and A rounded corner area surrounds the peripheral area, and the rounded corner area includes a front surface, a rounded corner face and a rear surface, wherein the rounded corner face is adjacent to the front surface and the rear surface, and the rear surface includes at least one supporting rear surface. Wherein, the radius of curvature of the rounded surface in the rounded corner region is RE, the maximum width of the rounded surface in the rounded corner region is WRE, the maximum diameter of the contact lens is DiL, the at least one supporting rear surface adjacent to the rounded surface in the rounded corner region is a first supporting rear surface, the radius of curvature of the first supporting rear surface is RB1s, and the radius of curvature of the front surface in the rounded corner region is RF, which satisfies the following conditions: 0 <RE≤1.00E+10; 0.05% ≤ 2 × WRE / DiL ≤ 10%; and 1.00E-08≤RB1s / (RF×RE)≤1.00E+05.

15. The contact lens according to claim 14, characterized in that, The maximum width of the front surface in the rounded corner area is WRF, and the maximum diameter of the contact lens is DiL, which satisfies the following conditions: 0.5% ≤ 2 × WRF / DiL ≤ 15%.

16. The contact lens according to claim 15, characterized in that, The radius of curvature of the front surface in the fillet region is RF, and the radius of curvature of the fillet surface in the fillet region is RE, which satisfies the following conditions: 1.00 <RF / RE≤1.00E+10。 17. The contact lens according to claim 14, characterized in that, The maximum width of all supporting rear surfaces in the rear surface is WRBmax, and the maximum diameter of the contact lens is DiL, which satisfies the following conditions: 1% ≤ 2 × WRBmax / DiL ≤ 15%.

18. The contact lens according to claim 17, characterized in that, The radius of curvature of the rounded corner surface in the rounded corner region is RE, and the radius of curvature of the rear surface of the first support in the rounded corner region is RB1s, which satisfy the following conditions: 1.00 <RB1s / RE≤1.00E+05。 19. The contact lens according to claim 14, characterized in that, The maximum width of the front surface in the rounded corner area is WRF, the maximum width of the rounded corner surface in the rounded corner area is WRE, the maximum width of all supporting rear surfaces in the rear surface is WRBmax, where the largest of WRF, WRE and WRBmax is WRMax, and the width of the rounded corner area is WRZ, which satisfies the following conditions: 55% ≤ WRMax / WRZ ≤ 100%.

20. The contact lens according to claim 14, characterized in that, The width of the rounded corner area is WRZ, and the maximum diameter of the contact lens is DiL, which satisfies the following conditions: 1% ≤ 2 × WRZ / DiL ≤ 14%.

21. A contact lens product, characterized in that, Include: The contact lens as described in claim 14; A buffer solution in which the contact lens is immersed; and A package in which the contact lens and the buffer solution are contained; The contact lens contains a stimulant, a humectant, a pigment, or a myopia control agent.

22. A contact lens product, characterized in that, Include: The contact lens as described in claim 14; A buffer solution in which the contact lens is immersed; and A package in which the contact lens and the buffer solution are contained; The buffer solution contains a stimulant, a humectant, a pigment, or a myopia control agent.

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