Ultraviolet absorbing hydrogels

Details Ultraviolet absorbing hydrogels Ultraviolet absorbing hydrogels

1991-04-24

1992-07-28

Green, Randall L.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Eye prosthesis

Intraocular lens

351160H, 351163, 523108, 524 91, A61F 216

Patent

active

051337452

ABSTRACT:
Two compounds, which are derivatives of 2(2-hydroxyphenyl) 2H-benzotriazole, are copolymerized with hydrogel forming monomers to form ultraviolet absorbing hydrogels. These hydrogels have many potential applications. For instance, they can be used to make contact lenses and intraocular lenses which are particularly useful for aphakics.

REFERENCES:
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patent: 4390676 (1983-06-01), Loshaek
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patent: 4528311 (1985-07-01), Beard
Sustic et al., New 2(2-Hydroxyphenyl2H-Benzotriazole Based Polymer-Bound Ultraviolet Stabilizers, Polymer Preprints, 28(2), pp. 226-227 (1987).
Pitts et al., Protection Against UVR Using the Vistakon UV-Bloc Soft Contact Lens, International Contact Lens Clinic, vol. 14, No. 1, pp. 22-29 (1987).
Kraff et al., Effect of an Ultraviolet-Filtering Intraocular Lens on Cystoid Macular Edema, Ophthalmology, vol. 92, pp. 366-369 (1985).
Dickstein et al. Functional Polymer, XXVI Co-and Terpolymers Involving Methacrylates, N-Vinylpyrollidone, and Polymerizable Ultraviolet Stabilizers and Antioxidants, J. Macromol. Sci-Chem., A22(4), pp. 387-402 (1985).

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