Synthetic viscoelastic material for ophthalmic applications

Details Synthetic viscoelastic material for ophthalmic applications Synthetic viscoelastic material for ophthalmic applications

A - Human Necessities

61

K

A61K 9/08 (2006.01) A61K 9/00 (2006.01) A61K 9/06 (2006.01) A61K 31/715 (2006.01) A61K 47/38 (2006.01) C08L 1/28 (2006.01)

Patent

CA 2161774

A viscoelastic composition for injection into a human eye comprised of about 2.0 to 2.5 percent of hydroxy propyl-methyl cellulose dissolved in a physiological salt solution, the composition, the composition having a viscosity from about 15,000 to about 40,000 centipoise and the hydroxypropylmethylhylcellulose having a molecular weight from about 220,000 to less than about 20,000 Daltons, the composition being free of debris or gels greater than 0.5um. Also described is a process for preparing the clean, high molecular weight hydroxypropylmethylcellulose composition.

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