Ophthalmic lens and method for making the same
AssigneeMiiCs & Partners (Shenzhen) Co., Ltd.
InventorHsiu-Wen Chien
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Abstract
A method for making a biodegradable ophthalmic lens includes steps of mixing poly[bis(methacrylate)phosphazene], hydrophilic monomers, and a photoinitiator to form a mixture; feeding the mixture into a mold, and heating or exposing the mixture to ultraviolet radiation, thereby causing the poly[bis(methacrylate)phosphazene] to function as a cross-linking agent. Such cross-linking agent undergoes a polymerization reaction with the hydrophilic monomers and the photoinitiator to form a polyphosphazenes hydrogel; and the polyphosphazenes hydrogel is then removed from the mold.
Claims8
A method for making an ophthalmic lens comprising:
- mixing poly[bis(methacrylate)phosphazene], hydrophilic monomers, and a photoinitiator to form a mixture, wherein the poly[bis(methacrylate)phosphazene] has a mass percentage of 3.2% to 3.5% of a total mass of the mixture, the hydrophilic monomers have a mass percentage of 96% of the total mass of the mixture, the photoinitiator has a mass percentage of 0.5% to 0.8% of the total mass of the mixture;
- feeding the mixture into a mold, and heating or exposing the mixture to ultraviolet radiation, thereby causing the poly[bis(methacrylate)phosphazene] to function as a cross-linking agent which undergoes a polymerization reaction with the hydrophilic monomers and the photoinitiator to form a polyphosphazenes hydrogel;
- and
- separating the polyphosphazenes hydrogel from the mold, thereby the polyphosphazenes hydrogel forming the ophthalmic lens.
Dependencies are inferred from the claim text.