Viscoelastic vitreous substitute with UV blocker

Details Viscoelastic vitreous substitute with UV blocker Viscoelastic vitreous substitute with UV blocker

1987-06-09

1989-08-01

Griffin, Ronald W.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Carbohydrate doai

351162, 351163, A61K 3172

Patent

active

048533742

ABSTRACT:
This invention relates to a UV-blocked viscoelastic vitreous substitute for use in ophthalmic surgery comprising a hydroxy alkyl-substituted cellulose modified with a UV-absorbent molecule covalently bonded thereto having the type formula: ##STR1## where R.sup.1 is selected from the group consisting of H and OH; R.sup.2 is selected from the group consisting of H, OH or OR where R is any alkyl group; and, R.sup.3 is selected from the group consisting of H, SO.sub.3, OSO.sub.2 X where X is a leaving group.

REFERENCES:
patent: 3553975 (1985-11-01), Su
patent: 3856919 (1979-12-01), Rankin
patent: 3947573 (1976-03-01), Rankin
patent: 4468229 (1984-08-01), Su
patent: 4559059 (1985-12-01), Su
patent: 4636212 (1987-01-01), Posin et al.
patent: 4713375 (1987-12-01), Lindstrom et al.
Finch, C. A., "Chemical Modification and Some Cross-Linking Reactions of Water Soluble Polymers" in Chemistry and Technology of Water Soluble Polymers, Plenum Press: New York, N.Y. (1983), pp. 92, 93, 95 and 108.

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