title: Toxic endothelial degeneration in ocular surface disease treated with topical medications containing benzalkonium chloride.
abstract: We examined a 56-year-old man with keratoconjunctivitis sicca and marked ocular surface disease in whom the prolonged frequent use of topical medications containing the preservative benzalkonium chloride was associated with corneal endothelial damage requiring corneal transplantation in one eye. The histopathologic findings on examination of the excised button were consistent with toxic endothelial disease. Postoperatively, the patient's symptoms continued until the preservative-containing medications were substituted with nonpreserved saline eyedrops.
authors.affiliation: Cornea Service, Center for Sight, Georgetown University Medical Center, Washington, D.C. 20007.
authors.forename: M A
authors.initials: MA
authors.lastname: Lemp
authors.forename: L E
authors.initials: LE
authors.lastname: Zimmerman
mesh_terms: D001548:Benzalkonium Compounds / Q000009:adverse effects*; D016039:Corneal Transplantation; D004728:Endothelium, Corneal / Q000187:drug effects / Q000473:pathology*; D006801:Humans; D007637:Keratoconjunctivitis / Q000188:drug therapy*; D007638:Keratoconjunctivitis Sicca / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D009883:Ophthalmic Solutions; D011310:Preservatives, Pharmaceutical
chemical_list: D001548:Benzalkonium Compounds; D009883:Ophthalmic Solutions; D011310:Preservatives, Pharmaceutical