Long-wearable soft contact lens
First Claim
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1. A mold for producing a contact lens, wherein said mold is capable of forming both front and rear surfaces of said contact lens from a surface of said mold during polymerization of a monomer composition in said mold and comprises a resin of polyethylene terephthalate.
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Abstract
A mold for producing a soft contact lens, wherein the mold is capable of forming both front and rear surfaces of the lens from a surface of the mold during polymerization of a monomer composition.
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Citations
23 Claims
- 1. A mold for producing a contact lens, wherein said mold is capable of forming both front and rear surfaces of said contact lens from a surface of said mold during polymerization of a monomer composition in said mold and comprises a resin of polyethylene terephthalate.
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2. A mold for producing a contact lens, wherein said mold is capable of forming both front and rear surfaces of said contact lens from a surface of said mold during polymerization of a monomer composition in said mold and comprises a resin of an ethylene-vinylalcohol copolymer with an ethylene copolymerization ratio of about 25-50% by mole.
- 6. A method for producing a hydrogel soft contact lens comprising polymerizing at least one siloxane monomer, said mold comprising a resin selected from the group consisting of nylon 66, nylon 6, polyethylene terephthalate and ethylene-vinyl alcohol copolymer.
- 8. A method for producing a contact lens comprising copolymerizing at least one siloxane monomer and at least one hydrophilic monomer, said mold comprising a resin selected from the group consisting of nylon 66, nylon 6, polyethylene terephthalate and ethylene-vinyl alcohol copolymer.
- 12. A method for producing a contact lens comprising photopolymerization by irradiating said mold with a light, said mold comprising a resin selected from the group consisting of nylon 66,-nylon 6, polyethylene terephthalate and ethylene-vinyl alcohol copolymer.
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14. A mold for directly producing a contact lens, comprising a surface capable of forming both front and rear surfaces of said contact lens during polymerization of a monomer composition, and wherein the mold material is a resin selected from the group consisting of polyamide, polyethylene terephthalate and ethylene-vinyl alcohol copolymer, and wherein at least one side of the mold for forming the lens surface has a contact angle to water not higher than 90°
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- 15. A hydrophilic polysiloxane monomer represented by the formula (1):
Specification