title: Viscoelastic agents.
authors.forename: R J
authors.initials: RJ
authors.lastname: Epstein
mesh_terms: D002807:Chondroitin; D002809:Chondroitin Sulfates; D004338:Drug Combinations; D006801:Humans; D006820:Hyaluronic Acid; D007429:Intraocular Pressure; D015948:Keratoplasty, Penetrating; D011446:Prospective Studies; D014821:Vitrectomy
chemical_list: D004338:Drug Combinations; C501944:chondroitin sulfate, sodium hyaluronate drug combination; D006820:Hyaluronic Acid; D002807:Chondroitin; D002809:Chondroitin Sulfates