Lens Material and Methods of Curing with UV Light

1 . A method of preparing an ophthalmic material, the method comprising:

preparing a mixture comprising a photoinitiator, a UV absorber, and at least one monomer; and

exposing the mixture to UV light to sufficiently cure the mixture.

2 . The method of claim 1 wherein the photoinitiator is a UV initiator.

3 . The method of claim 2 wherein the UV initiator comprises a phosphine oxide group.

4 . The method of claim 3 wherein the UV initiator is selected from the group consisting of phenyl-bis-(2,4,6-trimethyl benzoyl)-phosphine oxide, 2,4,6-trimethyl benzoyl diphenyl phosphineoxide, Irgacure 2100™, and Irgacure® 2022.

5 . The method of claim 4 wherein the UV initiator is present in the amount of about 1% by volume.

6 . The method of claim 1 wherein the UV absorber is 2-(3-allyl-2-hydroxy-5-methylphenyl)-2H-benzotriazole.

7 . The method of claim 6 wherein the 2-(3-allyl-2-hydroxy-5-methylphenyl)-2H-benzotriazole is present in the amount of about 0.1% by volume.

8 . A method of preparing an ophthalmic material, the method comprising:

preparing a mixture comprising a photoinitiator, a UV absorber, and at least one monomer; and

curing the mixture without using visible light.

9 . The method of claim 8 wherein curing the mixture without using visible light comprises curing the mixture without using light with a wavelength above 400 nm.

10 . The method of claim 1 wherein sufficiently curing the mixture comprises curing the mixture such that the % extractables in ethanol are less than about 6%.

11 . A polymeric material for an ophthalmic device, comprising:

an alkyl acrylate;

a fluoroacrylate;

a phenyl acrylate;

a photoinitiator; and

a UV absorber, wherein there is an effective amount of the photoinitiator to cure the polymeric material with UV light.

12 . The polymeric material of claim 11 wherein the photoinitiator is a UV initiator.

13 . The polymeric material of claim 12 wherein the UV initiator comprises a phosphine oxide group.

14 . The polymeric material of claim 13 wherein the UV initiator is selected from the group consisting of phenyl-bis-(2,4,6-trimethyl benzoyl)-phosphine oxide, 2,4,6-trimethyl benzoyl diphenyl phosphineoxide, Irgacure 2100™, and Irgacure® 2022.

15 . The polymeric material of claim 11 wherein the UV initiator is present in the amount of about 1% by volume.

16 . The polymeric material of claim 11 wherein the UV absorber is 2-(3-allyl-2-hydroxy-5-methylphenyl)-2H-benzotriazole.

17 . The polymeric material of claim 16 wherein the 2-(3-allyl-2-hydroxy-5-methylphenyl)-2H-benzotriazole is present in the amount of about 0.1% by volume.

18 . The polymeric material of claim 11 wherein the alkyl acrylate is present in the amount from about 35% to about 65% by volume.

19 . The polymeric material of claim 18 wherein the alkyl acrylate is butyl acrylate.

20 . The polymeric material of claim 11 wherein the fluoroacrylate is present in the amount of about 15% to about 30% by volume.

21 . The polymeric material of claim 20 wherein the fluoroacrylate is trifluoroethyl methacrylate.

22 . The polymeric material of claim 11 wherein the phenyl acrylate is present in the amount of about 20% to about 40% by volume.

23 . The polymeric material of claim 22 wherein the phenyl acrylate is phenylethyl acrylate.

24 . A polymeric material for an ophthalmic device, comprising:

a UV absorber present in the amount of less than about 1% by volume;

a photoinitiator; and

one or more monomers, wherein the polymeric material is adapted to be cured with UV light.

25 . The material of claim 24 wherein the photoinitiator is a UV initiator.

26 . The material of claim 25 wherein the UV initiator comprises a phosphine oxide group.

27 . The material of claim 26 wherein the UV initiator is selected from the group consisting of phenyl-bis-(2,4,6-trimethyl benzoyl)-phosphine oxide, 2,4,6-trimethyl benzoyl diphenyl phosphineoxide, Irgacure 2100™, Irgacure® 2022, and Irgacure® 819.

28 . The material of claim 24 wherein the photoinitiator is present in the amount of about 1% by volume.

29 . The material of claim 24 wherein the UV absorber is 2-(3-allyl-2-hydroxy-5-methylphenyl)-2H-benzotriazole.

30 . The material of claim 29 wherein the 2-(3-allyl-2-hydroxy-5-methylphenyl)-2H-benzotriazole is present in the amount of about 0.1% by volume.

31 . An accommodating intraocular lens, comprising:

a light-transmissive optic portion; and

a peripheral non-optic portion extending from the optic portion,

wherein the optic portion comprises a polymeric material comprising a UV absorber present in the amount of less than about 1% by volume, a photoinitiator, and one or more monomers, wherein the polymeric material is adapted to be cured with UV light.