title: Ocular retention of artificial tear solutions. Comparison of hydroxypropyl methylcellulose and polyvinyl alcohol vehicles using an argyrol marker.
mesh_terms: D002986:Clinical Trials as Topic; D003228:Conjunctiva; D006801:Humans; D007765:Lacrimal Apparatus; D008747:Methylcellulose; D009883:Ophthalmic Solutions / Q000494:pharmacology*; D014677:Pharmaceutical Vehicles / Q000494:pharmacology*; D011142:Polyvinyl Alcohol; D011145:Polyvinyls; D012836:Silver Proteins; D013194:Staining and Labeling; D013666:Tears; D013997:Time Factors; D014783:Viscosity
chemical_list: D009883:Ophthalmic Solutions; D014677:Pharmaceutical Vehicles; D011145:Polyvinyls; D012836:Silver Proteins; D011142:Polyvinyl Alcohol; D008747:Methylcellulose