Douglas J. Rhee, MD

90GelsTrade Name NotesGenTeal Lubricant Eye Gel Contains carbopol 980, claimed to transform from gel to liquid upon contact withthe eyeNight & Day Tears Again Sterile Lubricant Gel Contains povidone 0.1% therefore is not recommended for people with iodineallergies; preserved with benzalkonium chloride; not recommended for contactlens wearing patientsViscoelasticsSH = sodium hyaluronate adapative: molecules fracture when exposed to high shear ratesHMC = hydroxymethylcelluloseCS = chondroitin sulfateTrade Name Component Viscosity Molecular Weight Cohesive versus DispersiveAmvisc 1.2% SH 40,000 cSt (62,000 cp 10 ) 2,000,000 daltons CohesiveAmvisc Plus 1.6% SH 55,000 cSt (82,000 cp 10 ) 1,500,000 daltons CohesiveBioLon 1.0% SH 215,000 cps 9 3,000,000 daltons CohesiveCellugel 2.0% HMC 20,000–40,000 cps 300,000 daltons DispersiveCoEase 1.2% SH 40,000 cps 1,000,000 daltons CohesiveDuoViscEyeVisc 2.0% HMC 4,000 cps Unknown DispersiveEyeVisc Plus 2.0% HMC 40,000 cps Unknown DispersiveEyeVisc SH 1.4% SH 50,000 cps Unknown Cohesive