Viscoelastic material for ophthalmic surgery

Details Viscoelastic material for ophthalmic surgery Viscoelastic material for ophthalmic surgery

1987-10-14

1990-10-23

Griffin, Ronald W.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Carbohydrate doai

424 80, 604 28, 604294, 514912, 514913, 514915, A61K 3100

Patent

active

049652532

ABSTRACT:
An ophthalmic surgical procedure wherein the anterior or posterior chamber of the eye is filled with viscoelastic space-filling and ocular tissue protective surgical material, the improvement comprising the utilization therein of a composition particularly adapted for use as an ophthalmic viscoelastic surgical material in the anterior or posterior chamber of the eye consisting of an aqueous solution containing from about 1.5% to about 25%, by weight, of a physiologically acceptable, water-soluble polyvinylpyrrolidone polymer or polyvinylpyrrolidone copolymer, having a molecular weight greater than 500,000, said aqueous solution having a viscosity greater than about 5,000 centipoises, measured at 25.degree. C. using a Brookfield viscometer.

REFERENCES:
patent: 4003991 (1977-01-01), Krohn et al.
patent: 4136173 (1979-01-01), Pramoda et al.
patent: 4141973 (1979-02-01), Balazs
patent: 4328803 (1982-05-01), Pape
patent: 4486416 (1984-12-01), Soll et al.
patent: 4604217 (1986-08-01), Lukach et al.

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