CN116560109A

CN116560109A - Contact lens and contact lens product

Info

Publication number: CN116560109A
Application number: CN202310510830.8A
Authority: CN
Inventors: 赖奕玮; 邓钧鸿
Original assignee: Largan Medical Co Ltd
Current assignee: Largan Medical Co Ltd
Priority date: 2020-01-08
Filing date: 2020-03-27
Publication date: 2023-08-08
Also published as: CN113093405A; CN113093405B; CN212569331U

Abstract

A contact lens and a contact lens product, the contact lens comprises a central area, an annular area, a peripheral area and a round corner area from the center to the outside in sequence. The central zone includes a center point of the contact lens. The annular region surrounds the central region. The peripheral zone surrounds the annular zone. The fillet area surrounds the peripheral area, and the fillet area includes a front surface, a fillet face and a back surface, wherein the fillet face is adjacent to the front surface and the back surface, and the back surface includes at least one supporting back surface. When the specific conditions are met, the pressure of the contact lens attached to the cornea can be effectively reduced, so that the possibility of damage to the cornea structure is avoided, wearing comfort of a user is improved, and design and manufacturing difficulty of the contact lens can be reduced.

Description

Contact lens and contact lens product

The present application is a divisional application of patent application with application number 202010226282.2 and the name "contact lens and contact lens product" of day 2020, month 27.

Technical Field

The present invention relates to a contact lens and a contact lens product, and more particularly, to a contact lens and a contact lens product capable of effectively improving wearing comfort.

Background

The outermost edge area of the conventional contact lens is not well designed, and the outer edge of the contact lens with poor design has a sharp structure, which obviously affects the comfort of wearing the contact lens. Furthermore, contact lenses tend to feel uncomfortable during initial wear when they contact the sensitive cornea, and tend to deform the outer surface of the cornea over extended periods of wear, even further damaging the corneal structure.

Disclosure of Invention

According to the present invention, there is provided a contact lens comprising, in order from the center to the outside, a center region, an annular region, a peripheral region, and a rounded region. The central zone includes a center point of the contact lens. The annular region surrounds the central region. The peripheral zone surrounds the annular zone. The fillet area surrounds the peripheral area, and the fillet area includes a front surface, a fillet face and a back surface, wherein the fillet face is adjacent to the front surface and the back surface, and the back surface includes at least one supporting back surface. Wherein, the radius of curvature of the fillet face in the fillet area is RE, and at least one support back surface adjacent to the fillet face in the fillet area is a first support back surface, and the radius of curvature of the first support back surface is RB1s, which satisfies the following conditions:

10.00≤RB1s/RE≤1.00E+5。

in accordance with the present invention, there is further provided a contact lens product comprising a contact lens as described in the preceding paragraph, 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 a package. Wherein the contact lens comprises a beneficial agent, a wetting agent, a pigment or a myopia control agent.

There is further provided in accordance with the present invention a contact lens product comprising a contact lens as described in the preceding paragraph, 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 a package. Wherein the buffer solution comprises a beneficial agent, a wetting agent, a pigment or a myopia control agent.

According to the present invention, there is provided a contact lens comprising, in order from the center to the outside, a center region, an annular region, a peripheral region, and a rounded region. The central zone includes a center point of the contact lens. The annular region surrounds the central region. The peripheral zone surrounds the annular zone. The fillet area surrounds the peripheral area, and the fillet area includes a front surface, a fillet face and a back surface, wherein the fillet face is adjacent to the front surface and the back surface, and the back surface includes at least one supporting back surface. Wherein 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, and the maximum diameter of the contact lens is DiL, which satisfies the following conditions: RE is more than 0 and less than or equal to 1.00E+10; 0.05% or more and 2 XWRE/DiL or less and 10% or less.

Therefore, the contact lens is designed by continuously abutting the round corner area comprising at least three surfaces with different curvature radiuses through the outermost edge area, and the optimal curvature radius size and surface area size configuration are arranged among the front surface, the round corner surface and the multiple curvature radiuses of the rear surface of the round corner area, so that the pressure of the contact lens attached to the cornea can be effectively reduced, the possibility of damage of the cornea structure is avoided, the wearing comfort of a user is further improved, and the design and manufacturing difficulty of the contact lens can be reduced.

Drawings

FIG. 1A is a schematic diagram of a contact lens according to one embodiment of the present invention;

FIG. 1B is a schematic cross-sectional view of the contact lens of FIG. 1A along the cutting line 1B-1B;

FIG. 1C is an enlarged schematic view of a portion of the contact lens of FIG. 1B;

FIG. 2 is a schematic diagram illustrating a user wearing the contact lens of FIG. 1A;

FIG. 3A is a schematic view of a contact lens according to a first embodiment of the present invention;

FIG. 3B is a schematic cross-sectional view of the contact lens of FIG. 3A along the cutting line 3B-3B;

FIG. 3C is an enlarged schematic view illustrating the rounded region of the contact lens of FIG. 3B;

FIG. 4A is a schematic view of a contact lens according to a second embodiment of the present invention;

FIG. 4B is a schematic cross-sectional view of the contact lens of FIG. 4A along the cutting line 4B-4B;

FIG. 4C is an enlarged schematic view illustrating the rounded region of the contact lens of FIG. 4B;

FIG. 5A is a schematic view of a contact lens according to a third embodiment of the present invention;

FIG. 5B is a schematic cross-sectional view of the contact lens of FIG. 5A along the cutting line 5B-5B;

FIG. 5C is an enlarged schematic view illustrating the rounded region of the contact lens of FIG. 5B;

FIG. 6A is a schematic view of a contact lens according to a fourth embodiment of the present invention;

FIG. 6B is a schematic cross-sectional view of the contact lens of FIG. 6A along the cutting line 6B-6B;

FIG. 6C is an enlarged schematic view illustrating the rounded region of the contact lens of FIG. 6B;

FIG. 7A is a schematic view of a contact lens according to a fifth embodiment of the present invention;

FIG. 7B is a schematic cross-sectional view of the contact lens of FIG. 7A along the cutting line 7B-7B; and

fig. 7C is an enlarged schematic view illustrating the rounded corner region of the contact lens of fig. 7B.

[ symbolic description ]

100. 200, 300, 400, 500, 600, … contact lenses

110 … central region

120 … annular region

130 … peripheral region

140. 240, 340, 440, 540, 640 … fillet area

150. 250, 350, 450, 550, 650, … front surface

160. 260, 360, 460, 560, 660, … rounded surfaces

170. 270, 370, 470, 570, 670, … rear surface

170A … support area

170B … flow channel region

170C … transition region

171a … first support rear surface

171b … first flow passage rear surface

172a … second support rear surface

172b … second flow passage rear surface

173a … third support rear surface

173b … third flow passage rear surface

174a … fourth support rear surface

174b … fourth flow passage rear surface

175a … fifth support rear surface

175b … fifth flow passage rear surface

1b-1b, 3b-3b, 4b-4b, 5b-5b, 6b-6b, 7b-7b … cutting line

Radius of curvature of the rounded corner faces in the RE … fillet area

Radius of curvature of the front surface in the RF … fillet region

Radius of curvature of the back surface of the RB1s … first support

Radius of curvature of the back surface of the RB2s … second support

Radius of curvature of the back surface of the RB3s … third support

Radius of curvature of the rear surface of the RB4s … fourth support

Radius of curvature of the back surface of the RB5s … fifth support

Radius of curvature of the back surface of the RB1f … first flow passage

Radius of curvature of the rear surface of the RB2f … second flow passage

Radius of curvature of the rear surface of the RB3f … third flow passage

Radius of curvature of the rear surface of the RB4f … fourth flow path

Radius of curvature of the rear surface of the RB5f … fifth runner

Maximum width of front surface in WRF … fillet area

Maximum width of rounded face in WRE … fillet area

Maximum width in all support rear surfaces in WRBmax … rear surface

The largest of WRMax … WRF, WRE and WRBmax

Width of WRZ … fillet area

Maximum diameter of DiL … contact lens

Detailed Description

Referring to fig. 1A, 1B and 1C, fig. 1A is a schematic view of a contact lens 100 according to an embodiment of the invention, fig. 1B is a schematic view of a cross section of the contact lens 100 along a cutting line 1B-1B in fig. 1A, and fig. 1C is a schematic view of a partial enlargement of the contact lens 100 in fig. 1B. The contact lens 100 comprises, in order from the center to the outside, a center region 110, an annular region 120, a peripheral region 130, and a rounded region 140.

As shown in fig. 1A, 1B, and 1C, the central zone 110 comprises the center point of the contact lens 100. An annular region 120 surrounds the central region 110. The peripheral region 130 surrounds the annular region 120. The rounded region 140 surrounds the peripheral region 130, and the rounded region 140 comprises a front surface 150, a rounded surface 160 and a rear surface 170, wherein the rounded surface 160 abuts the front surface 150 and the rear surface 170, and the rear surface 170 comprises at least one supporting rear surface (not otherwise numbered). In detail, the central zone 110 comprises the optical zone of the contact lens 100, the annular zone 120 surrounds the central zone 110 and may comprise the optical zone of the contact lens 100, and neither the peripheral zone 130 nor the rounded zone 140 may comprise the optical zone of the contact lens 100. The rounded region 140 comprises the most peripheral cusp of the contact lens 100, wherein the front surface 150 of the rounded region 140 refers to the surface of the contact lens 100 that is distal from the cornea of the user's eye when properly worn (i.e., the outer surface of the contact lens 100), the rounded surface 160 comprises the cusp at the most peripheral corner of the contact lens 100 and abuts the surface midway between the front surface 150 and the rear surface 170, and the rear surface 170 refers to the surface that is proximate to the cornea of the user's eye when properly worn (i.e., the inner surface of the contact lens 100), with the front surface 150, the rounded surface 160, and the rear surface 170 forming a continuous spherical design. The back surface 170, which is the supporting surface of the back surface 170, is positioned closer to the cornea, and is primarily responsible for the supportive nature of the contact lens 100 from the cornea, providing the ability of the contact lens 100 to adhere to the surface of the cornea, and the superior design of the back surface can reduce the problems of corneal deformation and damage.

In the contact lens 100 of the present invention, as shown in fig. 1C, the back support surface adjacent to the rounded corner surface 160 in the rounded corner region 140 is a first back support surface 171a, wherein 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 back support surface 171a is RB1s, which satisfies the following condition: RE is less than or equal to RF and less than or equal to RB1s. Therefore, the outermost edge region of the contact lens 100 of the present invention is designed with the rounded corner region 140 continuously adjacent to the surface at least comprising three different curvature radii, and the rounded corner region 140 has the optimal curvature radius size and surface area size configuration among the front surface 150, the rounded corner surface 160 and the multiple curvature radii of the rear surface 170, so as to effectively reduce the pressure of the contact lens 100 attached to the cornea, thereby avoiding the possibility of damage to the cornea structure, further improving the wearing comfort of the user, and helping to reduce the difficulty in designing and manufacturing the contact lens 100.

In the contact lens 100 of the present invention, wherein the radius of curvature of the anterior surface 150 in the rounded region 140 is RF, the following condition may be satisfied: RF is 0.ltoreq.RF < infinity. Therefore, the curvature radius of the front surface 150 of the rounded region 140 of the contact lens 100 can be optimized to adjust the thickness of the rounded region 140 by optimizing the shape of the front surface 150 of the rounded region 140, which is helpful for maintaining the structural strength of the rounded region 140 and improving wearing comfort. When the upper limit falls outside the range, the front surface 150 may not smoothly abut against the surface of the peripheral region 130, and structural deformation may be caused by insufficient thickness of the rounded region 140, while when the lower limit falls outside the range, the front surface 150 may be excessively convex, which may easily cause foreign body sensation to affect wearing comfort. Alternatively, it may satisfy the following condition: RF is more than or equal to 0.01 and less than or equal to 1.00E+10. Alternatively, it may satisfy the following condition: RF is more than or equal to 0.10 and less than or equal to 1.00E+05. Alternatively, it may satisfy the following condition: RF is more than or equal to 0.50 and less than or equal to 1000.00. Alternatively, it may satisfy the following condition: RF is more than or equal to 0.60 and less than or equal to 8.00.

In the contact lens 100 of the present invention, wherein the radius of curvature of the rounded surface 160 in the rounded region 140 is RE, the following condition is satisfied: RE is more than or equal to 0 and less than infinity. Therefore, the radius of curvature of the rounded surface 160 of the rounded region 140 of the contact lens 100 can be optimized to smoothly abut the front surface 150 and the rear surface 170 of the rounded region 140, thereby facilitating the simplification of design and the improvement of manufacturability, and optimizing the rounded structure of the contact lens 100 to avoid damage to cornea. While falling outside the upper limit may not smoothly abut anterior surface 150 and posterior surface 170, falling outside the lower limit may sharpen rounded surface 160 and may damage the cornea and create corneal deformation. Alternatively, it may satisfy the following condition: RE is more than or equal to 1.00E-05 and less than or equal to 1.00E+10. Alternatively, it may satisfy the following condition: RE is more than or equal to 0.01 and less than or equal to 100.00. Alternatively, it may satisfy the following condition: RE is more than or equal to 0.10 and less than or equal to 10.00. Alternatively, it may satisfy the following condition: RE is more than or equal to 0.0200 and less than or equal to 0.05.

In the contact lens 100 of the present invention, wherein the radius of curvature of the first supporting rear surface 171a is RB1s, the following condition can be satisfied: RB1s is more than or equal to 0 and is less than infinity. Thus, the radius of curvature of the first support back surface 171a of the rounded region 140 of the contact lens 100 can be optimized to optimize the shape of the first support back surface 171a to provide support for the contact lens 100 against the cornea, which helps to reduce corneal distortion and damage. When the upper limit is out of range, the supporting rear surface may not conform to the shape of the cornea and may not be attached effectively, resulting in buckling deformation of the rounded corner region 140, while when the lower limit is out of range, the supporting rear surface may be too convex, which may easily cause corneal deformation and foreign body sensation. Alternatively, it may satisfy the following condition: RB1s is more than or equal to 1.00E-03 and less than or equal to 1.00E+10. Alternatively, it may satisfy the following condition: RB1s is more than or equal to 0.10 and less than or equal to 1.00E+05. Alternatively, it may satisfy the following condition: RB1s is more than or equal to 0.50 and less than or equal to 1000.00. Alternatively, it may satisfy the following condition: RB1s is more than or equal to 0.05 and less than or equal to 9.00.

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 may form a continuous spherical design, wherein all supporting rear surfaces of the rear surface 170 other than the first supporting rear surface 171a may be spherical, aspherical or planar. Therefore, the plurality of support rear surfaces of the rounded region 140 of the contact lens 100 are optimally designed in a spherical, aspherical or planar shape, and the optimal support rear surface configuration is adjusted to help to improve the support of the rounded region 140 of the contact lens 100 and avoid the deformation of cornea. Alternatively, at least one of all the support rear surfaces other than the first support rear surface 171a of the rear surface 170 is spherical. Alternatively, at least one of all the support rear surfaces other than the first support rear surface 171a of the rear surface 170 is aspherical. Alternatively, at least one of all the support rear surfaces other than the first support rear surface 171a of the rear surface 170 is planar. Alternatively, at least one of all the support rear surfaces other than the first support rear surface 171a of the rear surface 170 is spherical and at least one is aspherical. Alternatively, at least two of all the support rear surfaces other than the first support rear surface 171a of the rear surface 170 are spherical. Alternatively, at least two of all of the rear surfaces 170 other than the first support rear surface 171a are aspherical. Alternatively, at least one of all the support rear surfaces other than the first support rear surface 171a of the rear surface 170 is spherical and at least one is planar. Alternatively, at least three of all the support rear surfaces other than the first support rear surface 171a of the rear surface 170 are spherical. Alternatively, at least one of all the support rear surfaces other than the first support rear surface 171a of the rear surface 170 is aspherical and at least one is planar. Alternatively, at least four of all the rear support surfaces other than the first rear support surface 171a of the rear surface 170 are spherical. Alternatively, at least one of all the support rear surfaces of the rear surface 170 that is not the first support rear surface 171a is spherical, at least one is aspherical, and at least one is planar.

In the embodiment of fig. 1C, the supporting rear surface of the rear surface 170 of the contact lens 100 from the rounded surface 160 to the center point of the contact lens 100 may be, but is not limited to, 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 in this order. In fig. 1C, the lines between the first support rear surface 171a, the second support rear surface 172a, the third support rear surface 173a, the fourth support rear surface 174a and the fifth support rear surface 175a are only used to illustrate the range of five support rear surfaces, and the present invention is not limited thereto.

In the contact lens 100 of the present invention, wherein the radius of curvature of the anterior surface 150 in the rounded region 140 is RF and the radius of curvature of the first support posterior surface 171a in the rounded region 140 is RB1s, the following condition may be satisfied: RF/RB1s is more than or equal to 0.01 and less than or equal to 1.00E+10. Therefore, the curvature radii of the front surface 150 and the first supporting rear surface 171a of the rounded region 140 of the contact lens 100 with the optimal design can obtain the optimal thickness of the rounded region 140 and the supporting property of the contact lens 100 attached to the cornea, which helps to maintain the structural strength of the rounded region 140, reduce the deformation of the cornea and improve the wearing comfort. Alternatively, it may satisfy the following condition: RF/RB1s < infinity is 0.ltoreq.RF/RB 1s < infinity. Alternatively, it may satisfy the following condition: RF/RB1s is more than or equal to 0.10 and less than or equal to 1.00E+03. Alternatively, it may satisfy the following condition: RF/RB1s is 1.00-20.00. Alternatively, it may satisfy the following condition: RF/RB1s is more than or equal to 0.05 and less than or equal to 7.00.

In the contact lens 100 of the present invention, wherein the radius of curvature of the anterior surface 150 in the rounded region 140 is RF and the radius of curvature of the first support posterior surface 171a in the rounded region 140 is RB1s, the following condition may be satisfied: RB1s/RF is 0.ltoreq.Rb1 < infinity. Therefore, the curvature radii of the front surface 150 and the first supporting rear surface 171a of the rounded region 140 of the contact lens 100 with the optimal design can obtain the optimal thickness of the rounded region 140 and the supporting property of the contact lens 100 attached to the cornea, which helps to maintain the structural strength of the rounded region 140, reduce the deformation of the cornea and improve the wearing comfort. Alternatively, it may satisfy the following condition: RB1s/RF is less than or equal to 1.00E-09 is less than or equal to 1.00E+10. Alternatively, it may satisfy the following condition: RB1s/RF is more than or equal to 0.10 and less than or equal to 100.00. Alternatively, it may satisfy the following condition: RB1s/RF is less than or equal to 5.00 and less than or equal to 10.00. Alternatively, it may satisfy the following condition: RB1s/RF is more than or equal to 0.10 and less than or equal to 15.00.

In the contact lens 100 of the present invention, wherein the radius of curvature of the anterior surface 150 in the rounded region 140 is RF and the radius of curvature of the rounded surface 160 in the rounded region 140 is RE, the following condition may be satisfied: RF/RE is 1.00-1.00E+10. Thus, the radius of curvature of the anterior surface 150 and the rounded surface 160 of the rounded region 140 of the contact lens 100 can be optimally designed to achieve the optimal thickness and surface profile of the rounded region 140, which helps to simplify the design, enhance manufacturability and avoid damage to the cornea. Alternatively, it may satisfy the following condition: RF/RE 0.ltoreq.RF/RE < infinity. Alternatively, it may satisfy the following condition: RF/RE is less than or equal to 10.00 and less than or equal to 1.00E+05. Alternatively, it may satisfy the following condition: RF/RE not less than 100.00 and not more than 1000.00. Alternatively, it may satisfy the following condition: RF/RE not less than 120.00 and not more than 250.00.

In the contact lens 100 of the present invention, wherein the radius of curvature of the anterior surface 150 in the rounded region 140 is RF and the radius of curvature of the rounded surface 160 in the rounded region 140 is RE, the following condition may be satisfied: 0.ltoreq.1000xRE/RF < infinity. Thus, the radius of curvature of the anterior surface 150 and the rounded surface 160 of the rounded region 140 of the contact lens 100 can be optimally designed to achieve the optimal thickness and surface profile of the rounded region 140, which helps to simplify the design, enhance manufacturability and avoid damage to the cornea. Alternatively, it may satisfy the following condition: 1.00E-05 is less than or equal to 1000 xRE/RF is less than or equal to 1.00E+10. Alternatively, it may satisfy the following condition: 0.01-1000 xRE/RF-100.00. Alternatively, it may satisfy the following condition: 0.10.ltoreq.1000xRE/RF.ltoreq.10.00. Alternatively, it may satisfy the following condition: 1.00-1000 xRE/RF-10.00.

In the contact lens 100 of the present invention, wherein the radius of curvature of the rounded surface 160 in the rounded region 140 is RE and the radius of curvature of the first support rear surface 171a in the rounded region 140 is RB1s, the following condition may be satisfied: RB1s/RE not less than 0.10 and not more than 1.00E+05. Thus, the radius of curvature of the rounded region 140 of the contact lens 100 and the rounded surface 160 can be optimized to achieve the optimal support and surface shape of the contact lens 100 for adhering to the cornea, which helps to reduce the deformation of the cornea and avoid damage to the cornea. Alternatively, it may satisfy the following condition: RB1s/RE is more than or equal to 0 and is less than infinity. Alternatively, it may satisfy the following condition: RB1s/RE not less than 1.00 and not more than 100.00. Alternatively, it may satisfy the following condition: RB1s/RE not less than 5.00 and not more than 10.00. Alternatively, it may satisfy the following condition: RB1s/RE not less than 10.00 and 1.00E+04.

In the contact lens 100 of the present invention, wherein the radius of curvature of the rounded surface 160 in the rounded region 140 is RE and the radius of curvature of the first support rear surface 171a in the rounded region 140 is RB1s, the following condition may be satisfied: 0.ltoreq.1000xRE/RB 1s < infinity. Thus, the radius of curvature of the rounded region 140 of the contact lens 100 and the rounded surface 160 can be optimized to achieve the optimal support and surface shape of the contact lens 100 for adhering to the cornea, which helps to reduce the deformation of the cornea and avoid damage to the cornea. Alternatively, it may satisfy the following condition: 1.00E-05 is less than or equal to 1000 xRE/RB 1s is less than or equal to 1.00E+10. Alternatively, it may satisfy the following condition: 1000 xRE/RB 1s is more than or equal to 0.01 and less than or equal to 100.00. Alternatively, it may satisfy the following condition: 1000 xRE/RB 1s more than or equal to 0.10 and less than or equal to 10.00. Alternatively, it may satisfy the following condition: 1000 xRE/RB 1s more than or equal to 0.10 and less than or equal to 25.00.

In the contact lens 100 of the present invention, wherein the radius of curvature of the rounded surface 160 in the rounded region 140 is RE, the radius of curvature of the anterior surface 150 in the rounded region 140 is RF, and the radius of curvature of the first support posterior surface 171a is RB1s, the following condition is satisfied: RB1 s/(rf×re) < infinity. Thus, the radii of curvature of the first support posterior surface 171a, anterior surface 150, and rounded surface 160 of the rounded region 140 of the contact lens 100 of the optimal design can achieve optimal support, thickness, and surface profile, which helps to reduce corneal distortion, avoid damage to the cornea, and promote comfort of wear. Alternatively, it may satisfy the following condition: RB1 s/(RF×RE) 1.00E+05 less than or equal to 1.00E-08. Alternatively, it may satisfy the following condition: RB1 s/(RF×RE) is less than or equal to 0.10 and less than or equal to 1000.00. Alternatively, it may satisfy the following condition: RB1 s/(RF×RE) is less than or equal to 5.00 and less than or equal to 100.00. Alternatively, it may satisfy the following condition: RB1 s/(RF×RE) 1.00E+04.

In the contact lens 100 of the present invention, wherein the maximum width of the anterior surface 150 in the rounded region 140 is WRF, the following condition may be satisfied: WRF is more than or equal to 0.01mm and less than or equal to 0.90mm. Thus, the maximum width of the front surface 150 in the rounded region 140 of the contact lens 100 can be optimally designed to obtain an optimal thickness configuration range of the rounded region 140, which is helpful for enhancing the structural strength of the rounded region 140 and enhancing wearing comfort. Alternatively, it may satisfy the following condition: WRF is more than or equal to 0.005mm and less than or equal to 1.00mm. Alternatively, it may satisfy the following condition: WRF is more than or equal to 0.05mm and less than or equal to 0.80mm. Alternatively, it may satisfy the following condition: WRF is more than or equal to 0.10mm and less than or equal to 0.70mm. Alternatively, it may satisfy the following condition: WRF is more than or equal to 0.50mm and less than or equal to 0.60mm.

In the contact lens 100 of the present invention, wherein the maximum width of the rounded surface 160 in the rounded region 140 is WRE, the following conditions are satisfied: WRE is more than or equal to 0.008mm and less than or equal to 0.45mm. Therefore, the maximum width of the rounded corner surface 160 in the rounded corner region 140 of the contact lens 100 can be optimized to obtain the optimal surface configuration range of the rounded corner surface 160 and avoid the over-sharp rounded corners, thereby enhancing the comfortable rounded corner structure design of the contact lens 100 and protecting the cornea. Alternatively, it may satisfy the following condition: WRE is more than or equal to 0.005mm and less than or equal to 0.55mm. Alternatively, it may satisfy the following condition: WRE is more than or equal to 0.015mm and less than or equal to 0.35mm. Alternatively, it may satisfy the following condition: WRE is more than or equal to 0.025mm and less than or equal to 0.25mm. Alternatively, it may satisfy the following condition: WRE is more than or equal to 0.12mm and less than or equal to 0.15mm.

In the contact lens 100 of the present invention, wherein the maximum width in all supporting rear surfaces in the rear surface 170 is WRBmax, the following condition may be satisfied: WRBmax is more than or equal to 0.005mm and less than or equal to 1.00mm. In detail, in the contact lens 100, the maximum width WRBmax of all of the support rear surfaces in the rear surface 170 in the rounded region 140 may be the maximum width of the first support rear surface 171a, the second support rear surface 172a, the third support rear surface 173a, the fourth support rear surface 174a, and the fifth support rear surface 175a, however, if the support rear surface of the rear surface 170 is formed of the first support rear surface 171a, the width of the first support rear surface 171a is the maximum width of all of the support rear surfaces in the rear surface 170. Thus, the maximum width of the posterior surface 170 in the rounded region 140 of the optimally designed contact lens 100 can result in an optimal posterior surface 170 profile design that enhances the balance between surface support and flow through of the rounded region 140. Alternatively, it may satisfy the following condition: WRBmax is more than or equal to 0mm and less than or equal to 1.00mm. Alternatively, it may satisfy the following condition: WRBmax is more than or equal to 0.02mm and less than or equal to 0.80mm. Alternatively, it may satisfy the following condition: WRBmax is more than or equal to 0.03mm and less than or equal to 0.50mm. Alternatively, it may satisfy the following condition: WRBmax is more than or equal to 0.05mm and less than or equal to 0.30mm.

In the contact lens 100 of the present invention, wherein the maximum width of the anterior surface 150 in the rounded region 140 is WRF, the maximum width of the rounded surface 160 in the rounded region 140 is WRE, and the maximum width of all supporting posterior surfaces in the posterior surface 170 is WRBmax, wherein the maximum of WRF, WRE, and WRBmax is WRMax, the following conditions may be satisfied: WRMax is more than or equal to 0.20mm and less than or equal to 1.20mm. Thus, the design of the maximum width of the anterior surface 150, the maximum width of the rounded surface 160, and the maximum width of the posterior surface 170 in the rounded region 140 in a balanced manner enhances structural strength, comfort, and corneal protection. Alternatively, it may satisfy the following condition: WRMax is more than or equal to 0.10mm and less than or equal to 1.50mm. Alternatively, it may satisfy the following condition: WRMax is more than or equal to 0.30mm and less than or equal to 0.95mm. Alternatively, it may satisfy the following condition: WRMax is more than or equal to 0.40mm and less than or equal to 0.85mm. Alternatively, it may satisfy the following condition: WRMax is more than or equal to 0.50mm and less than or equal to 0.75mm.

In the contact lens 100 of the present invention, wherein the width of the rounded region 140 is WRZ, the following condition may be satisfied: WRZ is more than or equal to 0.05mm and less than or equal to 1.20mm. In detail, the width of the rounded region 140 is the width of the rounded region 140 from the periphery of the peripheral region 130 to the periphery of the contact lens 100. Thus, the extent of the rounded region 140 of the contact lens 100 of the preferred design enhances support, structural strength, comfort and corneal protection. Alternatively, it may satisfy the following condition: WRZ is more than or equal to 0.01mm and less than or equal to 1.50mm. Alternatively, it may satisfy the following condition: WRZ is more than or equal to 0.10mm and less than or equal to 0.95mm. Alternatively, it may satisfy the following condition: WRZ is more than or equal to 0.15mm and less than or equal to 0.75mm. Alternatively, it may satisfy the following condition: WRZ is more than or equal to 0.20mm and less than or equal to 0.45mm.

In the contact lens 100 of the present invention, wherein the maximum diameter of the contact lens 100 is DiL, the following conditions may be satisfied: diL is more than or equal to 11.00mm and less than or equal to 15.00mm. Thus, the maximum diameter of the optimally designed contact lens 100 helps avoid problems of the contact lens 100 being too large to wear easily, and too small to wear easily. Alternatively, it may satisfy the following condition: diL is more than or equal to 12.00mm and less than or equal to 14.50mm. Alternatively, it may satisfy the following condition: diL is more than or equal to 13.00mm and less than or equal to 14.50mm. Alternatively, it may satisfy the following condition: diL is more than or equal to 14.00mm and less than or equal to 14.50mm. Alternatively, it may satisfy the following condition: diL is more than or equal to 14.20mm and less than or equal to 14.40mm.

In the contact lens 100 of the present invention, wherein the maximum width of the anterior surface 150 in the rounded region 140 is WRF and the maximum diameter of the contact lens 100 is DiL, the following condition may be satisfied: 2 XWRF/DiL is more than or equal to 0.5% and less than or equal to 12%. Thus, the maximum width of the front surface 150 in the rounded region 140 of the contact lens 100 can be optimally designed to obtain an optimal thickness configuration range of the rounded region 140, which is helpful for enhancing the structural strength of the rounded region 140 and enhancing wearing comfort. Alternatively, it may satisfy the following condition: 2 XWRF/DiL is more than or equal to 0.1% and less than or equal to 15%. Alternatively, it may satisfy the following condition: 2 XWRF/DiL is more than or equal to 1% and less than or equal to 10%. Alternatively, it may satisfy the following condition: 2 XWRF/DiL is more than or equal to 3% and less than or equal to 8%. Alternatively, it may satisfy the following condition: 2 XWRF/DiL is more than or equal to 5% and less than or equal to 7%.

In the contact lens 100 of the present invention, wherein the maximum width of the rounded surface 160 in the rounded region 140 is WRE and the maximum diameter of the contact lens 100 is DiL, the following conditions may be satisfied: 2 XWRE/DiL is more than or equal to 0.1% and less than or equal to 8%. Therefore, the maximum width of the rounded corner surface 160 in the rounded corner region 140 of the contact lens 100 can be optimized to obtain the optimal surface configuration range of the rounded corner surface 160 and avoid the over-sharp rounded corners, thereby enhancing the comfortable rounded corner structure design of the contact lens 100 and protecting the cornea. Alternatively, it may satisfy the following condition: 2 XWRE/DiL is more than or equal to 0.05% and less than or equal to 10%. Alternatively, it may satisfy the following condition: 2 XWRE/DiL is more than or equal to 0.5% and less than or equal to 5%. Alternatively, it may satisfy the following condition: 2 XWRE/DiL is more than or equal to 1% and less than or equal to 4%. Alternatively, it may satisfy the following condition: 2% or more and 2 XWRE/DiL or less than 3%.

In the contact lens 100 of the present invention, wherein the maximum width in all supporting rear surfaces in the rear surface 170 is WRBmax, the maximum diameter of the contact lens 100 is DiL, which may satisfy the following condition: 2 XWRBmax/DiL is more than or equal to 1% and less than or equal to 14%. Thus, the maximum width of the posterior surface 170 in the rounded region 140 of the optimally designed contact lens 100 can result in an optimal posterior surface 170 profile design that enhances the balance between surface support and flow through of the rounded region 140. Alternatively, it may satisfy the following condition: 2 XWRBmax/DiL is more than or equal to 0.5% and less than or equal to 15%. Alternatively, it may satisfy the following condition: 2% or more and 2% or less WRBmax/DiL or less and 13% or less. Alternatively, it may satisfy the following condition: 2 XWRBmax/DiL is more than or equal to 3% and less than or equal to 12%. Alternatively, it may satisfy the following condition: 4% or more and 2% or less WRBmax/DiL or less and 11% or less.

In the contact lens 100 of the present invention, wherein the maximum width of the anterior surface 150 in the rounded region 140 is WRF, the maximum width of the rounded surface 160 in the rounded region 140 is WRE, the maximum width of all supporting posterior surfaces in the posterior surface 170 is WRBmax, wherein the maximum of WRF, WRE and WRBmax is WRMax, and the width of the rounded region 140 is WRZ, the following conditions may be satisfied: WRMax/WRZ is more than or equal to 45% and less than or equal to 100%. Thus, the design of the maximum width of the anterior surface 150, the maximum width of the rounded surface 160, and the maximum width of the posterior surface 170 in the rounded region 140 in a balanced manner enhances structural strength, comfort, and corneal protection. Alternatively, it may satisfy the following condition: WRMax/WRZ is more than or equal to 55% and less than or equal to 90%. Alternatively, it may satisfy the following condition: WRMax/WRZ is more than or equal to 65% and less than or equal to 80%. Alternatively, it may satisfy the following condition: WRMax/WRZ is more than or equal to 55% and less than or equal to 70%.

In the contact lens 100 of the present invention, wherein the rounded region 140 has a width WRZ and the contact lens 100 has a maximum diameter DiL, the following conditions may be satisfied: 2 XWRZ/DiL is more than or equal to 1% and less than or equal to 14%. In detail, the width WRZ of the rounded region 140 is less than 15% of the diameter of the contact lens 100, and when the radius of curvature of the first support back surface 171a is equal to the base curve (base curve) of the contact lens 100, the inner boundary of the rounded region 140 is 7.5% inward from the outermost edge of the lens. Thus, the extent of the rounded region 140 of the contact lens 100 of the preferred design enhances support, structural strength, comfort and corneal protection. Alternatively, it may satisfy the following condition: 2 XWRZ/DiL is more than or equal to 0.5% and less than or equal to 15%. Alternatively, it may satisfy the following condition: 2 XWRZ/DiL is more than or equal to 3% and less than or equal to 11%. Alternatively, it may satisfy the following condition: 2 XWRZ/DiL is more than or equal to 5% and less than or equal to 9%. Alternatively, it may satisfy the following condition: 2 XWRZ/DiL is more than or equal to 7% and less than or equal to 8%.

In the contact lens 100 of the present invention, the posterior surface 170 may further comprise at least one posterior surface of the flow channel (not otherwise numbered). At least one of the flow channels of the back surface 170 is a flow channel surface of the back surface 170, which is located further away from the cornea and is mainly responsible for the flow between the contact lens 100 and the cornea, and improves the flow of thin tear fluid between the inner and outer sides of the contact lens 100. Therefore, the flow and exchange of the tear thin layer are promoted, the upper eyelid closing pressure can be provided when tear blinks, tear is provided from top to bottom through closing, the tear is extruded to the inner part between the contact lens 100 and the cornea from the outside through one side flow passage, and then flows out through the other side flow passage for exchange, so that the oxygen exchange efficiency and the moisturizing effect of the cornea covered by the contact lens 100 are promoted.

In the contact lens 100 of the present invention, as shown in FIG. 1C, at least one of the posterior surfaces of the channel in the rounded region 140 adjacent to the rounded surface 160 is the first posterior surface 171b of the channel. Therefore, the contact lens 100 can further have a flow channel design with a tear exchange function, so that the tear exchange effect between the contact lens 100 and the eye is improved. The radius of curvature of the first flow passage rear surface 171b is RB1f, which can satisfy the following conditions: RB1f is more than or equal to 0 and is less than infinity. Thus, the radius of curvature of the first flow path back surface 171b of the rounded region 140 of the contact lens 100 can be optimally designed to optimize the shape of the first flow path back surface 171b, which helps to promote the flow of thin tear fluid between the inner and outer sides of the contact lens 100 and the canthus. When the upper limit is out of the range, the rear surface of the flow channel may not be smoothly adjacent, which may cause difficulty in design and manufacturing, and when the upper limit is out of the range, the shape of the flow channel may be poor, which may cause insufficient tear flow. Alternatively, it may satisfy the following condition: RB1f is more than or equal to 0.10 and less than or equal to 1.00E+10. Alternatively, it may satisfy the following condition: RB1f is more than or equal to 0.50 and less than or equal to 10.00. Alternatively, it may satisfy the following condition: RB1f is more than or equal to 1.00 and less than or equal to 5.00.

In the contact lens 100 of the present invention, the anterior surface 150, the rounded surface 160, and the first channel posterior surface 171b can form a continuously spherical design, wherein all of the channel posterior surfaces in the posterior surface 170 can be spherical, aspherical, or planar. Therefore, the rounded corner regions 140 of the contact lens 100 are optimally designed with the rear surfaces of the multiple flow channels in the spherical, aspherical or planar shape, and the configuration of the rear surfaces of the optimal flow channels is adjusted to help promote tear circulation of the contact lens 100. Alternatively, at least one of all of the rear surfaces 170 other than the first flow passage rear surface 171b is spherical. Alternatively, at least one of all of the rear surfaces 170 other than the first flow passage rear surface 171b is aspherical. Alternatively, at least one of all of the rear surfaces 170 other than the first flow passage rear surface 171b is planar. Alternatively, at least one of all of the rear surfaces 170 that are not the first flow passage rear surface 171b is spherical and at least one is aspherical. Alternatively, at least two of all of the rear surfaces 170 other than the first flow passage rear surface 171b are spherical. Alternatively, at least two of all of the rear surfaces 170 other than the first flow passage rear surface 171b are aspherical. Alternatively, at least two of all of the rear surfaces 170 other than the first flow passage rear surface 171b are planar. Alternatively, at least one of all of the rear surfaces 170 other than the first flow passage rear surface 171b is spherical and at least one is planar. Alternatively, at least three of all of the rear surfaces 170 other than the first flow passage rear surface 171b are planar. Alternatively, at least one of all of the rear surfaces 170 that are not the first flow passage rear surface 171b is aspherical and at least one is planar. Alternatively, at least four of all of the rear surfaces 170 other than the first flow passage rear surface 171b are planar. Alternatively, at least one of all of the rear surfaces 170 that are not the first flow passage rear surface 171b is spherical, at least one is aspherical, and at least one is planar.

In the embodiment of fig. 1C, the channel rear surface of the rear surface 170 of the contact lens 100 from the rounded surface 160 to the center point of the contact lens 100 may be, but is not limited to, a first channel rear surface 171b, a second channel rear surface 172b, a third channel rear surface 173b, a fourth channel rear surface 174b and a fifth channel rear surface 175b in this order. In fig. 1C, the lines between the first channel rear surface 171b, the second channel rear surface 172b, the third channel rear surface 173b, the fourth channel rear surface 174b and the fifth channel rear surface 175b are only used to illustrate the range of five channel rear surfaces, and the present invention is not limited thereto.

In the contact lens 100 of the present invention, the radii of curvature of the first support back surface 171a and the first flow path back surface 171b may be equal to the base arc of the contact lens 100, but the radii of curvature of the support back surface other than the first support back surface 171a and the flow path back surface other than the first flow path back surface 171b are not equal to the base arc of the contact lens 100.

In the contact lens 100 of the present invention, the contact lens 100 may have a rotationally stable structure, and at least one of the posterior surfaces of the flow channels in the radiused region 140 may be provided asymmetrically. Therefore, the asymmetric flow channel position is maintained, the flow and the exchange of the tear film are promoted by the asymmetric flow channel position, more tear can be provided to flow into the lens from the upper part and then flow out from the lower part, or the flow property is promoted by the more flow channels, so that the flow and the exchange of the tear film are facilitated.

Referring to fig. 2, a schematic diagram of a user wearing the contact lens 100 of fig. 1A is shown. As shown in fig. 2, the back surface 170 forms a support region 170A, the back surface of the back surface 170 forms a flow channel region 170B, the support region 170A does not overlap with the flow channel region 170B, and a transition region 170C with a proper width is provided between the support region 170A and the flow channel region 170B, and the transition region 170C is used to smoothly connect the support region 170A and the flow channel region 170B. When the contact lens 100 is viewed from above, the number of rings in the rounded region 140 can be designed to be even symmetrical, odd balanced, odd asymmetrical or even asymmetrical, for example, more frontal side than labial side, more labial side than frontal side, more temporal side than nasal side, more temporal side, symmetrical or asymmetrical in position, and adjustable in width as required, so as to facilitate the lifting of more tears into the lens from the upper portion, and then the lower portion as the outflow opening, or the flow through the larger width flow passage, and the upper eyelid closing pressure during blinking, from top to bottom, provides tears extruded from the outside into the interior between the contact lens 100 and the cornea through one side flow passage, and then flows out through the other side flow passage for exchange, thereby facilitating the lifting of the oxygen exchange efficiency and the moisturizing effect of the cornea covered by the contact lens 100. In addition, in the embodiment of fig. 2, a plurality of support regions 170A, flow channel regions 170B and transition regions 170C may be provided, but the invention is not limited thereto.

The technical features of the contact lens can be combined and configured to achieve the corresponding effects.

The contact lens according to the present invention may be an astigmatic (Astigmatism) correcting contact lens. Thereby, an effective corrective treatment of astigmatic patients can be provided to provide a clear visual effect.

The contact lens according to the present invention may be a multifocal contact lens that controls, slows, retards or prevents Myopia progression. Therefore, the myopia control and slowing effect can be provided, and the problem that the myopia degree of a patient is deepened is solved.

The contact lens according to the present invention may be a continuous variable focus multifocal contact lens. Therefore, the smooth zooming design can have a more moderate diopter change, and is beneficial to the definition of peripheral vision and the possibility of dizzy reduction.

The contact lens according to the present invention may be a Myopia (myopic) correcting contact lens, a Hyperopia (hypermetropia) correcting contact lens or a Presbyopia (Presbyopia) correcting contact lens. Thereby, an effective corrective treatment for myopes, hyperopia or presbyopic patients can be provided to provide a clear visual effect. Alternatively, the contact lens of the present invention may be a contact lens of a molded-on-a-corner (Corneal reshaping).

The radius of curvature is defined in the present invention as the cross-sectional plane through the center point of the contact lens, and the width is measured as the perpendicular distance of the optical axis through the center point of the contact lens.

The refractive power (Diopter) of the contact lens described herein is expressed as a D value, e.g., the central refractive power of the lens correcting myopia is negative and the central refractive power of the lens correcting hyperopia is positive.

The near vision aggravation referred to in the present invention means that the myopic degree is increased, and the absolute value of negative diopter is increased, for example, -0.5D aggravation/deepening to-2.0D.

The anterior surface (Front surface) of the contact lens described in the present invention refers to the surface away from the cornea of the eyeball, and the posterior surface (Back surface) refers to the surface closer to the cornea of the eyeball.

The surface shape change of the contact lens according to the present invention is based on the curved surface shape of an over-center section, such as spherical (sphere), planar (Plane) or aspherical (Aspheric).

The contact lens of the invention can be a color lens formed by at least two layers; the colored contact lens can be composed of two layers, such as a lens body layer and a color layer; the colored contact lens can be composed of three layers, such as a lens body layer, a color layer and an anti-falling protective layer; the colored contact lens can be composed of four layers, such as a lens body layer, a first color layer, a second color layer and an anti-falling protective layer. The colored contact lens 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-falling protective layer. The colored contact lens can be another five-layer composition, such as a lens body layer, a first color layer, a separation layer, a second color layer and an anti-falling protective layer.

The hydrogels for preparing contact lenses described herein can be, but are not limited to, non-ionic polymers (non-ionic polymers) categorized by the U.S. food and drug administration as group 1, i.e., low water content (less than 50 weight percent), such as Helfilcon A & B, hioxifilcon B, mafilcon, polymacon, tefilcon, tetrafilcon A, and the like. Alternatively, the aforementioned hydrogels may be non-ionic polymers classified by the U.S. food and drug administration into group 2 contact lens materials, i.e., high water content (greater than 50 weight percent), such as Acofilcon a, alfafilcon a, hilafilcon B, hioxfilcon a, hioxfilcon B, hioxfilcon D, nelfilcon a, nesofilcon a, omafilcon a, samfilcon a, and the like. Alternatively, the aforementioned hydrogels may be contact lens materials categorized by the U.S. food and drug administration as group 3, i.e., low water content (less than 50 weight percent) ionic polymers such as Deltafilcon a, and the like. Alternatively, the aforementioned hydrocolloids can be group 4 contact lens materials categorized by the U.S. food and drug administration, i.e., high water content (greater than 50 weight percent) ionic polymers such as Etafilcon a, focofilcon a, metafilcon B, ocufilcon a, ocufilcon B, ocufilcon C, ocufilcon D, ocufilcon E, phemfilcon a, vifilcon a, and the like.

The silicone gums of the contact lenses described in the present invention may be, but are not limited to, those categorized by the U.S. food and drug administration (USFDA) into group 5 contact lens materials such as Balafilcon a, comfilcon a, efrofilcon a, enfilcon a, galyfilcon a, lotrafilcon B, narafilcon a, narafilcon B, secofilcon a, delefilcon a, somofilcon a, and the like.

The rotation stabilizing structure of the contact lens can be designed into a lower thickening and sagging design, a balance design with thickening at two sides, an upper thinning and lower thinning and stabilizing design and the like.

The invention provides a contact lens product, which comprises the 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. Wherein the contact lens comprises a beneficial agent (Beneficial agents), a Wetting agent (Wetting agent), a pigment (Dye), or a myopia control agent (Myopia control agent). Therefore, the addition of the auxiliary agent has the effects of providing eye antibacterial, treatment, nourishing and the like, the addition of the wetting agent can improve the moisturizing, hydrophilic and lubricating effects, the addition of the pigment can provide the effects of shading light, eliminating stray light and beautifying, and the addition of the myopia control medicament can provide the myopia control and slowing effects.

The invention further provides a contact lens product comprising the 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. Wherein the buffer solution comprises a beneficial agent, a wetting agent, a pigment or a myopia control agent. Therefore, the addition of the auxiliary agent has the effects of providing eye antibacterial, treatment, nourishing and the like, the addition of the wetting agent can improve the moisturizing, hydrophilic and lubricating effects, and the addition of the myopia control agent can provide myopia control and slowing effects.

The contact lens or buffer solution described in the present invention may comprise: the Monomer (Monomer), UV Absorber (UV Absorber), blue Absorber (Blue Absorber), auxiliary agent, wetting agent, pigment, myopia control agent, weak acid and its conjugate base salt (Acid and its conjugate base), weak base and its conjugate acid salt (Base and its conjugate acid), anionic agent (Anionic agent), cationic agent (Cationic agent) and other auxiliary agent, the package can be made by combining plastic container and aluminum foil upper cover, the plastic container can be made of Polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET; polyethylene terephthalate) or other plastic materials, and the aluminum foil upper cover can be made of composite aluminum foil material with plastic coating.

The monomers of the contact lenses described in the invention may comprise: hydroxyethyl methacrylate (HEMA; 2-Hydroxyethyl methacrylate), methacrylic Acid (MAA; methacrylic Acid), 2-methyl-2-propenoic Acid-2, 3-dihydroxypropyl ester (GMA; glycerol monomethacrylate), N-Vinyl-2-pyrrolidone (NVP; N-Vinyl-2-pyrrosinone), methyl methacrylate (MMA; methyl methacrylate), N-dimethylacrylamide (DMAA; N, N-Dimethyl Acrylamide), and the like.

The UV absorber of the contact lens described in the present invention may comprise: 2- [ 2-Hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole (2- (2 '-Hydroxy-5' -methylacryloylphenyl) -2H-benzotriazole), 2- (4-Benzoyl-3-hydroxyphenoxy) ethyl 2-acrylate (2- (4-Benzoyl-3-hydroxyphenoxy) ethyl acrylate) and the like.

The blue light absorber of the contact lens described in the present invention may comprise: tetraphenyl dimethacrylate (4- (phenyldiazenyl) phenyl methacrylate) and the like.

The contact lens of the present invention may comprise: antibiotics (anti-bacterial), bacteriostats (Bacteriostatic agent), antiviral agents (anti-viral agents), antifungal agents (anti-allergic agents), antiallergic agents (Antiallergic agent), steroids (Steroid), non-steroidal anti-inflammatory agents (NSAIDs), active agents (Surfactants), miotics (Miotics), enzyme inhibitors (Enzyme inhibitors), anesthetics (Anaesthetics), vasoconstrictors (vasoconstrictors), vitamins (vitamins), antioxidants (anti-oxidants), nutritional agents (nutrients), and the like.

The wetting agent for contact lenses described in the invention may comprise: 2-Methacryloyloxyethyl Phosphorylcholine (MPC), hyaluronic Acid (Hyaluronic Acid), and the like.

The pigments of the contact lenses described in the invention may comprise: anthocyanidin (Anthrocyanins), beta-Carotene (Beta-Carote), curcumin (Curcumin), luciferin (Luciferin), lutein (Lutein), lycopene (Lycopene), phycobilin (Phycobilin), phycoerythrin (Phytocohrim), phycocyanin (Phycconin), riboflavin (Vitamin B2), zeaxanthin (Zeaxanthin), photochromic agent (Photochromic dyes), thermochromic agent (Thermochromic dyes), and the like, and derivatives thereof.

The myopia control agent for a contact lens described in the present invention may comprise: ciliary muscle paralysis agent, pupil enlarger (mydriasis agent), selective/nonselective muscarinic receptor antagonist, etc., has effects of controlling, slowing, delaying or preventing myopia exacerbation, such as by blocking parasympathetic M-type muscarinic receptor, relaxing ciliary muscle of paralyzed pupil, and thus enlarging pupil. Such as Atropine (Atropine), 3-endo-8-Methyl-8-azabicyclo [3.2.1] oct-3-yltropate, atropine sulfate (Atropine sulphate), cyclopentanamine ester (cyclic) 2- (dimethyl amine) Ethyl (1-hydro-penyl) (phenyl) acetate, cyclopentylamine hydrochloride (Cyclopentolate HCl), you Katuo (eucatipin; 1,2,2,6-Tetramethyl-4-piperidinylhydroxy (phenyl) acetate), rear horse-tray (homatine) (3-endo) -8-azabicyclo [3.2.1] oct-3-ylhydroxy (phenyl) acetate), nu-ganic Wen Xi (Nuvenzepine), epinephrine hydrochloride (Phenylephrine HCl), ram-basket (Pinzepine), racemic anisodine (racaine), racaine-4-Methyl-piperidinylhydroxy (phenyl) acetate), rear horse-tray (3-Methyl-8-azabicyclo [3.2.1] oct-3-ylhydroxy (phenyl) acetate), and salts thereof (3-Methyl-4-Ethyl-3, 2-Methyl-1-Methyl-3-Methyl-5-Ethyl acetate), and salts thereof (3-Methyl-4-Ethyl-4-Methyl-3, 2.1] amide (Methyl-3-Ethyl-3-35 acetate).

Other beneficial agents for contact lenses described herein may include: apomorphine (Apomorphine), bromocriptine (Bromocriptine), dopamine receptor agonists (Dopamine), levodopa (Levodopa), or Quinpirole (Quinpirole), etc.

In accordance with the above embodiments, specific examples are set forth below in conjunction with the drawings.

< first embodiment >

Referring to fig. 3A, 3B and 3C, fig. 3A is a schematic view illustrating a contact lens 200 according to a first embodiment of the invention, fig. 3B is a schematic view illustrating a cross section of the contact lens 200 along a cutting line 3B-3B in fig. 3A, and fig. 3C is an enlarged schematic view illustrating a rounded corner region 240 of the contact lens 200 in fig. 3B. The contact lens 200 includes, in order from the center to the outside, a center region (not shown), an annular region (not shown), a peripheral region (not shown), and a rounded region 240.

The rounded region 240 comprises a front surface 250, a rounded surface 260, and a rear surface 270, wherein the rounded surface 260 abuts the front surface 250 and the rear surface 270, and the rear surface 270 comprises at least one supporting rear surface (not otherwise numbered). As shown in fig. 3C, in the first embodiment, the rear surface 270 includes only one supporting rear surface, and the supporting rear surface in the first embodiment is referred to as a first supporting rear surface (that is, the supporting rear surface in the first embodiment is formed by the first supporting rear surface, which will be described below, and the first supporting rear surface abuts the rounded corner surface 260). The radius of curvature of the rounded surface 260 in the rounded region 240 is RE, the radius of curvature of the front surface 250 in the rounded region 240 is RF, and the radius of curvature of the back surface of the first support is RB1s, while the values and designs of the parameters of RE, RF, RB1s, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE) are recorded in Table I.

In the first embodiment, the maximum width of the front surface 250 in the rounded area 240 is WRF, the maximum width of the rounded surface 260 in the rounded area 240 is WRE, the maximum width of all the back surfaces of the back surface 270 is WRBmax (in the first embodiment, the width of the first back surface of the back support), the maximum of WRF, WRE and WRBmax is WRMax, the width of the rounded area 240 is WRZ, and the maximum diameter of the contact lens 200 is DiL, while the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the first embodiment are recorded in table two.

< second embodiment >

Referring to fig. 4A, 4B and 4C, fig. 4A is a schematic view of a contact lens 300 according to a second embodiment of the invention, fig. 4B is a schematic view of a cross section of the contact lens 300 along a cutting line 4B-4B in fig. 4A, and fig. 4C is an enlarged schematic view of a rounded corner region 340 of the contact lens 300 in fig. 4B. The contact lens 300 comprises, in order from the center to the outside, a center region (not shown), an annular region (not shown), a peripheral region (not shown), and a rounded region 340.

The rounded region 340 comprises a front surface 350, a rounded surface 360, and a rear surface 370, wherein the rounded surface 360 abuts the front surface 350 and the rear surface 370, and the rear surface 370 comprises at least one supporting rear surface (not otherwise numbered). As shown in fig. 4C, in the second embodiment, the rear surface 370 includes only one support rear surface, and the support rear surface in the second embodiment is referred to as a first support rear surface (i.e., the support rear surface in the second embodiment is formed by the first support rear surface, which will be described below, and the first support rear surface abuts the rounded corner surface 360). The radius of curvature of the rounded surface 360 in the rounded region 340 is RE, the radius of curvature of the front surface 350 in the rounded region 340 is RF, the radius of curvature of the first support rear surface is RB1s, and the values and designs of the parameters of RE, RF, RB1s, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE) are recorded in Table three.

In the second embodiment, the maximum width of the front surface 350 in the rounded area 340 is WRF, the maximum width of the rounded surface 360 in the rounded area 340 is WRE, the maximum width of all the back surfaces of the back surface 370 is WRBmax (the width of the first back surface in the second embodiment), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area 340 is WRZ, and the maximum diameter of the contact lens 300 is DiL, while the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL, etc. of the second embodiment are recorded in table four.

< third embodiment >

Referring to fig. 5A, 5B and 5C, fig. 5A is a schematic view illustrating a contact lens 400 according to a third embodiment of the invention, fig. 5B is a schematic view illustrating a cross section of the contact lens 400 along a cutting line 5B-5B in fig. 5A, and fig. 5C is an enlarged schematic view illustrating a rounded corner area 440 of the contact lens 400 in fig. 5B. The contact lens 400 includes, in order from the center to the outside, a center region (not shown), an annular region (not shown), a peripheral region (not shown), and a rounded region 440.

The radiused region 440 includes a front surface 450, a radiused surface 460, and a rear surface 470, wherein the radiused surface 460 abuts the front surface 450 and the rear surface 470, and the rear surface 470 includes at least one supporting rear surface (not otherwise numbered). As shown in fig. 5C, in the third embodiment, the support rear surface of the rear surface 470 includes only one support rear surface, and the support rear surface in the third embodiment is referred to as a first support rear surface (i.e., the support rear surface of the third embodiment is formed by the first support rear surface, which will be described below as the first support rear surface), and the first support rear surface abuts the rounded corner surface 460. The radius of curvature of the rounded surface 460 in the rounded region 440 is RE, the radius of curvature of the front surface 450 in the rounded region 440 is RF, the radius of curvature of the back surface of the first support is RB1s, and the values and designs of the parameters of RE, RF, RB1s, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE) and the like of the third embodiment are recorded in Table five.

In the third embodiment, the maximum width of the front surface 450 in the rounded area 440 is WRF, the maximum width of the rounded surface 460 in the rounded area 440 is WRE, the maximum width of all the back surfaces supported in the back surface 470 is WRBmax (in the third embodiment, the width of the first back surface supported), the maximum of WRF, WRE and WRBmax is WRMax, the width of the rounded area 440 is WRZ, and the maximum diameter of the contact lens 400 is DiL, while the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the third embodiment are recorded in table six.

< fourth embodiment >

Referring to fig. 6A, 6B and 6C, fig. 6A is a schematic view illustrating a contact lens 500 according to a fourth embodiment of the invention, fig. 6B is a schematic view illustrating a cross section of the contact lens 500 along a cutting line 6B-6B in fig. 6A, and fig. 6C is an enlarged schematic view illustrating a rounded corner region 540 of the contact lens 500 in fig. 6B. The contact lens 500 includes, in order from the center to the outside, a center region (not shown), an annular region (not shown), a peripheral region (not shown), and a rounded region 540.

The radiused region 540 includes a front surface 550, a radiused surface 560, and a rear surface 570, wherein the radiused surface 560 abuts the front surface 550 and the rear surface 570, and the rear surface 570 includes at least one supporting rear surface (not otherwise numbered). As shown in fig. 6C, in the fourth embodiment, the support rear surface of the rear surface 570 includes only one support rear surface, and the support rear surface in the fourth embodiment is referred to as a first support rear surface (i.e., the support rear surface of the fourth embodiment is formed by the first support rear surface, which will be described below with reference to the first support rear surface), and the first support rear surface abuts the rounded corner surface 560. The radius of curvature of the rounded surface 560 in the rounded region 540 is RE, the radius of curvature of the front surface 550 in the rounded region 540 is RF, the radius of curvature of the first support rear surface is RB1s, and the values and designs of the parameters of RE, RF, RB1s, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE) and the like of the fourth embodiment are recorded in Table seven.

In the fourth embodiment, the maximum width of the front surface 550 in the rounded area 540 is WRF, the maximum width of the rounded surface 560 in the rounded area 540 is WRE, the maximum width of all of the back surfaces in the back surface 570 is WRBmax (in the fourth embodiment, the width of the first back surface), the maximum of WRF, WRE and WRBmax is WRMax, the width of the rounded area 540 is WRZ, and the maximum diameter of the contact lens 500 is DiL, while the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2 XWRF/DiL, 2 XWRE/DiL, 2 XWRBmax/DiL, WRMax/WRZ, 2 XWRZ/DiL of the fourth embodiment are recorded in Table eight.

< fifth embodiment >

Referring to fig. 7A, 7B and 7C, fig. 7A is a schematic view of a contact lens 600 according to a fifth embodiment of the invention, fig. 7B is a schematic view of a cross section of the contact lens 600 along a cutting line 7B-7B in fig. 7A, and fig. 7C is an enlarged schematic view of a rounded corner region 640 of the contact lens 600 in fig. 7B. The contact lens 600 includes, in order from the center to the outside, a center region (not shown), an annular region (not shown), a peripheral region (not shown), and a rounded region 640.

The radiused region 640 includes a front surface 650, a radiused surface 660, and a rear surface 670, wherein the radiused surface 660 abuts the front surface 650 and the rear surface 670, and the rear surface 670 includes at least one supporting rear surface (not otherwise numbered). As shown in fig. 7C, in the fifth embodiment, the support rear surface of the rear surface 670 includes only one support rear surface, and the support rear surface in the fifth embodiment is referred to as a first support rear surface (i.e., the support rear surface of the fifth embodiment is formed by the first support rear surface, which will be described below with reference to the first support rear surface), and the first support rear surface abuts the rounded corner surface 660. The radius of curvature of the rounded corner surface 660 in the rounded corner region 640 is RE, the radius of curvature of the front surface 650 in the rounded corner region 640 is RF, the radius of curvature of the first support rear surface is RB1s, and the values and designs of the parameters of RE, RF, RB1s, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE) and the like of the fifth embodiment are recorded in Table nine.

In the fifth embodiment, the maximum width of the front surface 650 in the rounded area 640 is WRF, the maximum width of the rounded surface 660 in the rounded area 640 is WRE, the maximum width of all the supporting rear surfaces in the rear surface 670 is WRBmax (in the fifth embodiment, the width of the first supporting rear surface), the maximum of WRF, WRE and WRBmax is WRMax, the width of the rounded area 640 is WRZ, and the maximum diameter of the contact lens 600 is DiL, while the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the fifth embodiment are recorded in table ten.

< sixth embodiment >

The contact lens (not shown) of the sixth embodiment comprises a central region, an annular region, a peripheral region and a rounded region sequentially from the center to the outside. 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, and the rear surface comprises a supporting rear surface.

In the contact lens of the sixth embodiment, the back surface of the back surface comprises only one back surface, and the back surface of the sixth embodiment is referred to as the first back surface (i.e., the back surface of the sixth embodiment is formed by the first back surface, which will be described below, and the first back surface abuts the rounded surface). The radius of curvature of the rounded surface in the rounded region is RE, the radius of curvature of the front surface in the rounded region is RF, the radius of curvature of the back surface of the first support is RB1s, and the values and designs of the parameters of RE, RF, RB1s, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF xRE) are recorded in Table eleven.

In the contact lens of the sixth embodiment, the maximum width of the front surface in the rounded area is WRF, the maximum width of the rounded surface in the rounded area is WRE, the maximum width of all the back surfaces in the back surface is WRBmax (the width of the first back surface in the sixth embodiment), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area is WRZ, and the maximum diameter of the contact lens is DiL, while the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the sixth embodiment are recorded in table twelve.

< seventh embodiment >

The contact lens (not shown) of the seventh embodiment comprises a central region, an annular region, a peripheral region and a rounded region sequentially from the center to the outside. The fillet area comprises a front surface, a fillet surface and a rear surface, wherein the fillet surface is adjacent to the front surface and the rear surface. In a seventh embodiment, the back surface comprises two support back surfaces, and the center points of the two support back surfaces facing the contact lens from the rounded corners are sequentially a first support back surface and a second support back surface, and the first support back surface is adjacent to the rounded corner surface.

In the contact lens of the seventh embodiment, wherein the radius of curvature of the rounded surface in the rounded region is RE, the radius of curvature of the front surface in the rounded region is RF, the radius of curvature of the first back surface is RB1s, the radius of curvature of the second back surface is RB2s, and the values and designs of the parameters of RE, RF, RB1s, RB2s, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE) are recorded in the thirteenth table.

In the contact lens of the seventh embodiment, the maximum width of the front surface in the rounded area is WRF, the maximum width of the rounded surface in the rounded area is WRE, the maximum width of all the back surfaces in the back surface is WRBmax (the maximum of the widths of the first back surface and the second back surface in the seventh embodiment), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area is WRZ, and the maximum diameter of the contact lens is DiL, and the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the seventh embodiment are recorded in table fourteen.

< eighth embodiment >

The contact lens (not shown) of the eighth embodiment comprises a central region, an annular region, a peripheral region and a rounded region sequentially from the center to the outside. The fillet area comprises a front surface, a fillet surface and a rear surface, wherein the fillet surface is adjacent to the front surface and the rear surface. In an eighth embodiment, the back surface comprises three support back surfaces, and the three support back surfaces are a first support back surface, a second support back surface and a third support back surface in order from the rounded corner to the center point of the contact lens, and the first support back surface is adjacent to the rounded corner.

In the contact lens of the eighth embodiment, wherein the radius of curvature of the rounded surface in the rounded region is RE, the radius of curvature of the front surface in the rounded region is RF, the radius of curvature of the first back surface is RB1s, the radius of curvature of the second back surface is RB2s, and the radius of curvature of the third back surface is RB3s, and the values and designs of the parameters of RE, RF, RB1s, RB2s, RB3s, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE) and the like of the eighth embodiment are recorded in Table fifteen.

In the contact lens of the eighth embodiment, the maximum width of the front surface in the rounded area is WRF, the maximum width of the rounded surface in the rounded area is WRE, the maximum width of all the back surfaces in the back surface is WRBmax (the maximum of the widths of the first back surface, the second back surface, and the third back surface in the eighth embodiment), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area is WRZ, the maximum diameter of the contact lens is DiL, and the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2 xwrf/DiL, 2 xwre/DiL, 2 xwrbmax/DiL, WRMax/WRZ, 2 xwrz/DiL of the eighth embodiment are recorded in table sixteen.

< ninth embodiment >

The contact lens (not shown) of the ninth embodiment comprises a central region, an annular region, a peripheral region and a rounded region sequentially from the center to the outside. The fillet area comprises a front surface, a fillet surface and a rear surface, wherein the fillet surface is adjacent to the front surface and the rear surface. In a ninth embodiment, the back surface comprises four support back surfaces, and the four support back surfaces are sequentially a first support back surface, a second support back surface, a third support back surface and a fourth support back surface from the rounded corners toward the center point of the contact lens, and the first support back surface is adjacent to the rounded corners.

In the contact lens of the ninth embodiment, wherein the radius of curvature of the rounded surface in the rounded region is RE, the radius of curvature of the front surface in the rounded region is RF, the radius of curvature of the first back-surface is RB1s, the radius of curvature of the second back-surface is RB2s, the radius of curvature of the third back-surface is RB3s, and the radius of curvature of the fourth back-surface is RB4s, and the values and designs of the parameters of the ninth embodiment, RE, RF, RB1s, RB2s, RB3s, RB4s, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE), are recorded in Table seventeen.

In the contact lens of the ninth embodiment, the maximum width of the front surface in the rounded area is WRF, the maximum width of the rounded surface in the rounded area is WRE, the maximum width of all the support rear surfaces in the rear surface is WRBmax (the maximum of the widths of the first support rear surface, the second support rear surface, the third support rear surface, and the fourth support rear surface in the ninth embodiment), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area is WRZ, the maximum diameter of the contact lens is DiL, and the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the ninth embodiment are recorded in table eighteen.

< tenth embodiment >

The contact lens (not shown) of the tenth embodiment comprises a central region, an annular region, a peripheral region and a rounded region sequentially from the center to the outside. The fillet area comprises a front surface, a fillet surface and a rear surface, wherein the fillet surface is adjacent to the front surface and the rear surface. In a tenth embodiment, the back surface comprises five support back surfaces, and the five support back surfaces are sequentially a first support back surface, a second support back surface, a third support back surface, a fourth support back surface and a fifth support back surface from the rounded corner to the center point of the contact lens, and the first support back surface is adjacent to the rounded corner surface.

In the contact lens of the tenth embodiment, wherein the radius of curvature of the rounded surface in the rounded region is RE, the radius of curvature of the front surface in the rounded region is RF, the radius of curvature of the first back-support surface is RB1s, the radius of curvature of the second back-support surface is RB2s, the radius of curvature of the third back-support surface is RB3s, the radius of curvature of the fourth back-support surface is RB4s, and the radius of curvature of the fifth back-support surface is RB5s, and the values and designs of the parameters of RE, RF, RB1s, RB2s, RB3s, RB4s, RB5s, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE) are recorded in Table nine.

In the contact lens of the tenth embodiment, the maximum width of the front surface in the rounded area is WRF, the maximum width of the rounded surface in the rounded area is WRE, the maximum width of all the support rear surfaces in the rear surface is WRBmax (the maximum of the widths of the first support rear surface, the second support rear surface, the third support rear surface, the fourth support rear surface, and the fifth support rear surface in the tenth embodiment), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area is WRZ, the maximum diameter of the contact lens is DiL, and the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the tenth embodiment are recorded in table twenty.

< eleventh embodiment >

The contact lens (not shown) of the eleventh embodiment comprises a central zone, an annular zone, a peripheral zone and a rounded zone in this order from the center to the outside. The fillet area comprises a front surface, a fillet surface and a rear surface, wherein the fillet surface is adjacent to the front surface and the rear surface. In the eleventh embodiment, the rear surface includes only a support rear surface and a flow channel rear surface, and the support rear surface in the eleventh embodiment is referred to as a first support rear surface (i.e., the support rear surface of the eleventh embodiment is formed by the first support rear surface and will be described below by the first support rear surface), and the flow channel rear surface is referred to as a first flow channel rear surface (i.e., the flow channel rear surface of the eleventh embodiment is formed by the first flow channel rear surface and will be described below by the first flow channel rear surface), and the first support rear surface and the first flow channel rear surface are adjacent to the rounded corner surface.

In the contact lens of the eleventh embodiment, wherein the radius of curvature of the rounded surface in the rounded region is RE, the radius of curvature of the front surface in the rounded region is RF, the radius of curvature of the first back surface of the support is RB1s, the radius of curvature of the back surface of the first runner is RB1f, and the values and designs of the parameters RE, RF, RB1s, RB1f, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE) are recorded in twenty-one of the tables.

/>

In the contact lens of the eleventh embodiment, the maximum width of the front surface in the rounded area is WRF, the maximum width of the rounded surface in the rounded area is WRE, the maximum width of all the back surfaces in the back surface is WRBmax (in the eleventh embodiment, the width of the first back surface in the first back surface), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area is WRZ, and the maximum diameter of the contact lens is DiL, while the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the eleventh embodiment are recorded in the table twenty-two.

< twelfth embodiment >

The contact lens (not shown) of the twelfth embodiment comprises a central region, an annular region, a peripheral region and a rounded region sequentially from the center to the outside. The fillet area comprises a front surface, a fillet surface and a rear surface, wherein the fillet surface is adjacent to the front surface and the rear surface. In the twelfth embodiment, the rear surface includes two support rear surfaces and a flow channel rear surface, the two support rear surfaces are a first support rear surface and a second support rear surface in order from the rounded corner to the center point of the contact lens, and the flow channel rear surface is a first flow channel rear surface (i.e., the flow channel rear surface of the twelfth embodiment is formed by the first flow channel rear surface, which will be described below with reference to the first flow channel rear surface), and the first support rear surface adjoins the first flow channel rear surface adjacent to the rounded corner.

In the contact lens of the twelfth embodiment, wherein the radius of curvature of the rounded surface in the rounded region is RE, the radius of curvature of the front surface in the rounded region is RF, the radius of curvature of the first back surface is RB1s, the radius of curvature of the second back surface is RB2s, the back surface of the first runner is RB1f, and the values and designs of the parameters of RE, RF, RB1s, RB2s, RB1f, RF/RB1s, RB1s/RF, RF/RE, 1000 xRE/RF, RB1s/RE, 1000 xRE/RB 1s, RB1 s/(RF x RE) are recorded in twenty-third table.

Wherein the rear surface of the first runner is a plane.

In the contact lens of the twelfth embodiment, the maximum width of the front surface in the rounded area is WRF, the maximum width of the rounded surface in the rounded area is WRE, the maximum width of all the back surfaces of the support in the back surface is WRBmax (in the twelfth embodiment, the maximum of the widths of the first back surface and the second back surface of the support), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area is WRZ, and the maximum diameter of the contact lens is DiL, and the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the twelfth embodiment are recorded in twenty-four tables.

< thirteenth embodiment >

The contact lens (not shown) of the thirteenth embodiment comprises a central zone, an annular zone, a peripheral zone and a rounded zone in this order from the center to the outside. The fillet area comprises a front surface, a fillet surface and a rear surface, wherein the fillet surface is adjacent to the front surface and the rear surface. In a thirteenth embodiment, the back surface comprises three support back surfaces and a three-channel back surface, the three support back surfaces are a first support back surface, a second support back surface and a third support back surface in order from the rounded corner to the center point of the contact lens, the three-channel back surface is a first channel back surface, a second channel back surface and a third channel back surface in order from the rounded corner to the center of the contact lens, and the first support back surface and the first channel back surface are adjacent to the rounded corner.

In the contact lens of the thirteenth embodiment, where the radius of curvature of the rounded surface in the rounded region is RE, the radius of curvature of the front surface in the rounded region is RF, the radius of curvature of the first back support surface is RB1s, the radius of curvature of the second back support surface is RB2s, the third back support surface is RB3s, the back surface of the first runner is RB1f, the radius of curvature of the back surface of the second runner is RB2f, and the back surface of the third runner is RB3f, the values and designs of the parameters of RE, RF, RB1s, RB2s, RB3s, RB1f, RB2f, RB3f, RF/RB1s, RB1s/RF, RF/RE, 1000×RE/RF, RB1s/RE, 1000×RE/RB1 s/(RF×RE) are recorded in twenty-five tables.

Wherein the third support rear surface is planar, the first flow passage rear surface is aspherical, and the third flow passage rear surface is planar.

In the contact lens of the thirteenth embodiment, the maximum width of the anterior surface in the rounded area is WRF, the maximum width of the rounded surface in the rounded area is WRE, the maximum width of all of the back surfaces in the back surface is WRBmax (the maximum of the widths of the first back surface, the second back surface, and the third back surface in the thirteenth embodiment), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area is WRZ, the maximum diameter of the contact lens is DiL, and the values and designs of the parameters WRF, WRE, WRBmax, WRMax, WRZ, diL, 2 xwrf/DiL, 2 xwre/DiL, 2 xwrbmax/DiL, WRMax/WRZ, 2 xwrz/DiL of the thirteenth embodiment are recorded in the twenty-six tables.

< fourteenth embodiment >

The contact lens (not shown) of the fourteenth embodiment comprises a central region, an annular region, a peripheral region and a rounded region sequentially from the center to the outside. The fillet area comprises a front surface, a fillet surface and a rear surface, wherein the fillet surface is adjacent to the front surface and the rear surface. In a fourteenth embodiment, the rear surface comprises four support rear surfaces and four runner rear surfaces, the four support rear surfaces are a first support rear surface, a second support rear surface, a third support rear surface and a fourth support rear surface in order from the rounded corners facing the center of the contact lens, the four runner rear surfaces are a first runner rear surface, a second runner rear surface, a third runner rear surface and a fourth runner rear surface in order from the rounded corners facing the center of the contact lens, and the first support rear surface and the first runner rear surface are adjacent to the rounded corners.

In the contact lens of the fourteenth embodiment, wherein the radius of curvature of the rounded surface in the rounded region is RE, the radius of curvature of the front surface in the rounded region is RF, the radius of curvature of the first back surface is RB1s, the radius of curvature of the second back surface is RB2s, the radius of curvature of the third back surface is RB3s, the radius of curvature of the fourth back surface is RB4s, the radius of curvature of the first back surface is RB1f, the radius of curvature of the second back surface is RB2f, the radius of curvature of the third back surface is RB3f, the radius of curvature of the fourth back surface is RB4f, and the values and designs of the parameters of RE, RF, RB1s, RB3s, RB2s, RB3s, RB1s/RF, RF/RE, 1000×RE/RF, RB1s/RE, RB1 s/(RF×RE) and the like of the fourteenth embodiment are recorded in twenty-seventeenth tables.

Wherein the second support rear surface is aspherical, the fourth support rear surface is aspherical, the second flow passage rear surface is aspherical, and the fourth flow passage rear surface is aspherical.

In the contact lens of the fourteenth embodiment, the maximum width of the front surface in the rounded area is WRF, the maximum width of the rounded surface in the rounded area is WRE, the maximum width of all the support rear surfaces in the rear surface is WRBmax (the maximum of the widths of the first support rear surface, the second support rear surface, the third support rear surface, and the fourth support rear surface in the fourteenth embodiment), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area is WRZ, the maximum diameter of the contact lens is DiL, and the values and designs of the parameters of WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the fourteenth embodiment are recorded in the table twenty-eight.

< fifteenth embodiment >

The contact lens (not shown) of the fifteenth embodiment comprises a central zone, an annular zone, a peripheral zone and a rounded zone in order from the center to the outside. The fillet area comprises a front surface, a fillet surface and a rear surface, wherein the fillet surface is adjacent to the front surface and the rear surface. In a fifteenth embodiment, the back surface comprises a five-support back surface and a five-runner back surface, the five-support back surface is sequentially a first support back surface, a second support back surface, a third support back surface, a fourth support back surface and a fifth support back surface from the rounded corner to the center of the contact lens, the five-runner back surface is sequentially a first runner back surface, a second runner back surface, a third runner back surface, a fourth runner back surface and a fifth runner back surface from the rounded corner to the center of the contact lens, and the first support back surface and the first runner back surface are adjacent to the rounded corner.

In the contact lens of the fifteenth embodiment, wherein the radius of curvature of the rounded surface in the rounded region is RE, the radius of curvature of the front surface in the rounded region is RF, the radius of curvature of the first back-up surface is RB1s, the radius of curvature of the second back-up surface is RB2s, the radius of curvature of the third back-up surface is RB3s, the radius of curvature of the fourth back-up surface is RB4s, the radius of curvature of the fifth back-up surface is RB5s, the radius of curvature of the first back-up surface is RB1f, the radius of curvature of the second back-up surface is RB2f, the third back-up surface is RB3f, the fourth back-up surface is RB4f, the fifth back-up surface is RB5f, and the parameters of the fifteenth embodiment, RE, RF, RB1s, RB2s, RB3s, RB4f, RB5f, RF/RB1s, RF/RE, 1000×RE/RF 1s/RE, 1000×RE/RB1s, and ninety-RE are recorded in the design values of twenty-th embodiment.

Wherein the third support rear surface is aspheric, the fourth support rear surface is planar, the second flow channel rear surface is planar, the third flow channel rear surface is planar, the fourth flow channel rear surface is planar, and the fifth flow channel rear surface is planar.

In the contact lens of the fifteenth embodiment, the maximum width of the front surface in the rounded area is WRF, the maximum width of the rounded surface in the rounded area is WRE, the maximum width of all of the back surfaces in the back surface is WRBmax (the maximum of the widths of the first back surface, the second back surface, the third back surface, the fourth back surface, and the fifth back surface in the fifteenth embodiment), the maximum of WRF, WRE, and WRBmax is WRMax, the width of the rounded area is WRZ, the maximum diameter of the contact lens is DiL, and the values and designs of the parameters such as WRF, WRE, WRBmax, WRMax, WRZ, diL, 2×wrf/DiL, 2×wre/DiL, 2×wrbmax/DiL, WRMax/WRZ, 2×wrz/DiL of the fifteenth embodiment are recorded in table thirty.

While the present invention has been described with reference to the embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that the scope of the invention be limited only by the appended claims.

Claims

1. A contact lens comprising, in order from the center outward:

a central zone comprising a center point of the contact lens;

an annular region surrounding the central region;

a peripheral region surrounding the annular region; and

a rounded region surrounding the peripheral region, the rounded region comprising a front surface, a rounded surface and a rear surface, wherein the rounded surface is adjacent to the front surface and the rear surface, and the rear surface comprises at least one supporting rear surface;

wherein the radius of curvature of the rounded surface in the rounded region is RE, the at least one supporting rear surface adjacent to the rounded surface in the rounded region is a first supporting rear surface, and the radius of curvature of the first supporting rear surface is RB1s, which satisfies the following conditions:

10.00≤RB1s/RE≤1.00E+5。

2. the contact lens of claim 1, wherein the radius of curvature of the anterior surface in the rounded region is RF and the radius of curvature of the first support posterior surface in the rounded region is RB1s, which satisfies the following condition:

0.10≤RF/RB1s≤1.00E+10。

3. the contact lens of claim 2, wherein the maximum width in all of the posterior bearing surfaces in the rounded region is WRBmax and the maximum diameter of the contact lens is DiL, which satisfies the following condition:

1％≤2×WRBmax/DiL≤14％。

4. A contact lens according to claim 3, wherein the radius of curvature of the rounded surface in the rounded region is RE and the radius of curvature of the first back-support surface in the rounded region is RB1s, which satisfies the following condition:

RE<RB1s。

5. a contact lens according to claim 3, wherein the radius of curvature of the anterior surface in the rounded region is RF and the radius of curvature of the first support posterior surface in the rounded region is RB1s, which satisfies the following condition:

RF<RB1s。

6. the contact lens of claim 1 wherein the posterior surface further comprises at least one posterior surface of the channel.

7. The contact lens of claim 6, wherein the contact lens has a rotationally stable structure and the at least one posterior surface of the channel in the rounded region is configured asymmetrically.

8. The contact lens of claim 1, wherein the contact lens is an astigmatism correcting contact lens.

9. The contact lens of claim 1 wherein the contact lens is a multifocal contact lens that controls, slows, retards or prevents exacerbations of myopia.

10. The contact lens of claim 9, wherein the contact lens is a continuous zoom multifocal contact lens.

11. The contact lens of claim 1, wherein the contact lens is a near vision correcting contact lens, a far vision correcting contact lens, or a presbyopic correcting contact lens.

12. A contact lens product comprising:

the contact lens of claim 1;

a buffer solution in which the contact lens is immersed; and

a package, wherein the contact lens and the buffer solution are contained in the package;

wherein the contact lens comprises a beneficial agent, a wetting agent, a pigment or a myopia control agent.

13. A contact lens product comprising:

the contact lens of claim 1;

a buffer solution in which the contact lens is immersed; and

wherein the buffer solution comprises a beneficial agent, a wetting agent, a pigment or a myopia control agent.

14. A contact lens comprising, in order from the center outward:

a central zone comprising a center point of the contact lens;

an annular region surrounding the central region;

a peripheral region surrounding the annular region; and

wherein the radius of curvature of the rounded surface in the rounded region is RE, the maximum width of the rounded surface in the rounded region is WRE, and the maximum diameter of the contact lens is DiL, which satisfies the following conditions:

RE is more than 0 and less than or equal to 1.00E+10; and

0.05％≤2×WRE/DiL≤10％。

15. the contact lens of claim 14, wherein the maximum width of the anterior surface in the rounded region is WRF and the maximum diameter of the contact lens is DiL, which satisfies the following condition:

0.5％≤2×WRF/DiL≤15％。

16. the contact lens of claim 15, wherein the radius of curvature of the anterior surface in the rounded region is RF and the radius of curvature of the rounded surface in the rounded region is RE, which satisfies the following condition:

1.00<RF/RE≤1.00E+10。

17. the contact lens of claim 14, wherein the maximum width in all of the posterior surfaces of the support is WRBmax and the maximum diameter of the contact lens is DiL, which satisfies the following condition:

1％≤2×WRBmax/DiL≤15％。

18. the contact lens of claim 17, wherein the radius of curvature of the rounded surface in the rounded region is RE, the at least one back-supporting surface adjacent to the rounded surface in the rounded region is a first back-supporting surface, and the radius of curvature of the first back-supporting surface is RB1s, which satisfies the following condition:

1.00<RB1s/RE≤1.00E+05。

19. The contact lens of claim 14, wherein the maximum width of the anterior surface in the rounded region is WRF, the maximum width of the rounded surface in the rounded region is WRE, the maximum width of all of the posterior surfaces in the support is WRBmax, wherein the maximum of WRF, WRE, and WRBmax is WRMax, and the width of the rounded region is WRZ, which satisfies the following condition:

55％≤WRMax/WRZ≤100％。

20. the contact lens of claim 14, wherein the rounded region has a width WRZ and the contact lens has a maximum diameter DiL that satisfies the following condition:

1％≤2×WRZ/DiL≤14％。

21. a contact lens product comprising:

the contact lens of claim 14;

a buffer solution in which the contact lens is immersed; and

22. A contact lens product comprising:

the contact lens of claim 14;

a buffer solution in which the contact lens is immersed; and