Patent ID: 7820194
Filing Date: 2010-10-26
Classification: A61K,A61L,A61P

Abstract:
1. A sterile, aqueous viscoelastic composition for use in ophthalmic surgical procedures, comprising a combination of hyaluronic acid and chondroitin sulfate, or ophthalmically acceptable salts thereof, in an ophthalmically acceptable vehicle, wherein the hyaluronic acid or ophthalmically acceptable salt thereof has a molecular weight of 1,600,000 to 1,800,000 daltons and is present at a concentration of 1.5% to 1.8% w/v; and wherein the chondroitin sulfate or ophthalmically acceptable salt thereof has a molecular weight of 20,000 to 100,000 daltons and is present at a concentration of 3% to 5% w/v, and the composition has a cohesion-dispersion index of 9 to 15 and a zero shear viscosity of 200 to 350 Pa·s.