Contact lens product
A contact lens product includes a multifocal contact lens and a buffer solution. The multifocal contact lens includes a central region and at least one annular region. The annular region concentrically surrounds the central region. A diopter of the annular region is different from a diopter of the central region. The multifocal contact lens is immersed in the buffer solution, and the buffer solution includes a cycloplegic agent.
1. A contact lens product, configured to prevent myopia or control a progression of myopia, comprising:
a multifocal contact lens, comprising:
a central region; and
at least one annular region concentrically surrounding the central region, wherein a diopter of the annular region is different from a diopter of the central region; and
a buffer solution, wherein the multifocal contact lens is immersed in the buffer solution, the buffer solution comprises a cycloplegic agent, a weight percentage concentration of the cycloplegic agent in the buffer solution is ConA, a diameter of the central region of the multifocal contact lens is DiC, a diopter of the central region of the multifocal contact lens is PowC, a maximum diopter of the first annular region of the multifocal contact lens is PowP 1 , and the following conditions are satisfied:
0.01%≤ConA<0.5%;
4 mm<DiC; and
2.25 D≤PowP 1 −PowC.
2. The contact lens product of claim 1 , wherein the weight percentage concentration of the cycloplegic agent in the buffer solution is ConA, and the following condition is satisfied:
0. 01≤ConA≤0.25%.
3. The contact lens product of claim 2 , wherein the weight percentage concentration of the cycloplegic agent in the buffer solution is ConA, and the following condition is satisfied:
0.01%≤ConA≤0.1%.
4. The contact lens product of claim 3 , wherein the weight percentage concentration of the cycloplegic agent in the buffer solution is ConA, and the following condition is satisfied:
0.01%≤ConA≤0.05%.
5. The contact lens product of claim 1 , wherein a composition for manufacturing the multifocal contact lens comprises a blue-light blocking agent.
6. The contact lens product of claim 5 , wherein the blue-light blocking agent is 4-(phenyldiazenyl) phenyl methacrylate.
7. The contact lens product of claim 1 , wherein a composition for manufacturing the multifocal contact lens comprises a UV (Ultraviolet) blocking agent.
8. The contact lens product of claim 7 , wherein the UV blocking agent is 2-(2′-hydroxy-5′-methacryloxyethylphenyl)-2H-benzotriazole or 2-(4-benzoyl-3-hydroxyphenoxy)ethyl acrylate.
9. The contact lens product of claim 1 , wherein the multifocal contact lens is made of silicone hydrogel.
10. The contact lens product of claim 9 , wherein a composition for manufacturing the silicone hydrogel comprises 2-hydroxyethyl methacrylate, 3-methacryloyloxypropyltris(trimethylsilyloxy)silane, 2-hydroxy-2-methyl-propiophenone, N-vinyl-2-pyrrolidinone, N,N-dimethyl acrylamide, ethylene glycol dimethacrylate, 3-(3-methacryloxy-2-hydroxypropoxy)propylbis(trimethylsiloxy)methylsilane, isopropyl alcohol and methacrylic acid.
11. The contact lens product of claim 9 , wherein a composition for manufacturing the silicone hydrogel comprises 2-hydroxyethyl methacrylate, 3-methacryloyloxypropyltris(trimethylsilyloxy)silane, 2-hydroxy-2-methyl-propiophenone, N-vinyl-2-pyrrolidinone, N,N-dimethyl acrylamide, ethylene glycol dimethacrylate, (3-acryloxy-2-hydroxypropoxypropyl)terminated polydimethylsiloxane and 1-hexanol.
12. The contact lens product of claim 9 , wherein a composition for manufacturing the silicone hydrogel comprises 2-hydroxyethyl methacrylate, 3-methacryloyloxypropyltris(trimethylsilyloxy)silane, 2-hydroxy-2-methyl-propiophenone, N-vinyl-2-pyrrolidinone, N,N-dimethyl acrylamide, polysiloxane macromer, methyl methacrylate and ethanol.
13. The contact lens product of claim 1 , wherein the multifocal contact lens is made of hydrogel.
14. The contact lens product of claim 13 , wherein a composition for manufacturing the hydrogel comprises 2-hydroxyethyl methacrylate, ethylene glycol dimethacrylate, 2-hydroxy-2-methyl-propiophenone, glycerol, 1,1,1-trimethylol propane trimethacrylate and methacrylic acid.
15. The contact lens product of claim 13 , wherein a composition for manufacturing the hydrogel comprises 2-hydroxyethyl methacrylate, ethylene glycol dimethacrylate, 2-hydroxy-2-methyl-propiophenone, glycerol, 1,1,1-trimethylol propane trimethacrylate and glycerol monomethacrylate.
16. The contact lens product of claim 13 , wherein a composition for manufacturing the hydrogel comprises 2-hydroxyethyl methacrylate, ethylene glycol dimethacrylate, 2-hydroxy-2-methyl-propiophenone, glycerol and N-vinyl-2-pyrrolidinone.
17. The contact lens product of claim 1 , wherein a number of the annular regions is two, the annular regions are a first annular region and a second annular region, the central region, the second annular region and the first annular region are sequentially connected from a center of the multifocal contact lens to a periphery of the multifocal contact lens and are concentric, a diopter of the second annular region is different from the diopter of the central region, and at least one of the central region, the second annular region and the first annular region is aspheric.
18. The contact lens product of claim 17 , wherein the diameter of the central region of the multifocal contact lens is DiC, and the following condition is satisfied:
4 mm<DiC≤10 mm.
19. The contact lens product of claim 17 , wherein an outer diameter of the first annular region of the multifocal contact lens is DiP 1 , and the following condition is satisfied:
6 mm≤DiP 1 ≤ 17 mm.
20. The contact lens product of claim 17 , wherein an outer diameter of the second annular region of the multifocal contact lens is DiP 2 , and the following condition is satisfied:
5 mm≤DiP 2 ≤ 13 mm.
21. The contact lens product of claim 17 , wherein the diameter of the central region of the multifocal contact lens is DiC, an outer diameter of the first annular region of the multifocal contact lens is DiP 1 , and the following condition is satisfied:
0.15≤DiC/DiP 1 < 1 .
22. The contact lens product of claim 17 , wherein the diameter of the central region of the multifocal contact lens is DiC, an outer diameter of the second annular region of the multifocal contact lens is DiP 2 , and the following condition is satisfied:
0.2≤DiC/DiP 2 < 1 .
23. The contact lens product of claim 17 , wherein the diopter of the central region of the multifocal contact lens is PowC, the maximum diopter of the first annular region of the multifocal contact lens is PowP 1 , and the following condition is satisfied:
0.75 D≤|PowC−PowP 1 |<12 D.