title: Traumatic optic neuropathy accompanying orbital grease gun injury.
abstract: We report a case of traumatic optic neuropathy accompanying a grease gun injury to the orbit. A 48-year-old man with a grease gun injury visited our clinic with decreased visual acuity, proptosis and limited extraocular movement (EOM). Orbital CT revealed a crescent mass of fat in the medial intraconal space. The grease was exuded from a lacerated conjunctival wound. The visual evoked potential (VEP) test demonstrated a decreased response in the left eye. Proptosis and EOM were improved after surgical removal of the grease. Systemic high-dose corticosteroid therapy was administered for suspected traumatic optic neuropathy, after which VEP nearly recovered, while visual acuity was slightly improved. A second surgery for traumatic cataract did not further improve visual acuity.
authors.affiliation: Department of Ophthalmology, Kim's Eye Hospital, Konyang University College of Medicine, Seoul, Korea.
authors.forename: Ji Hyun
authors.initials: JH
authors.lastname: Park
authors.forename: Jae Woo
authors.initials: JW
authors.lastname: Jang
authors.forename: Sung Joo
authors.initials: SJ
authors.lastname: Kim
authors.forename: Yong Ju
authors.initials: YJ
authors.lastname: Lee
mesh_terms: D000062:Accidents, Occupational; D005074:Evoked Potentials, Visual; D015807:Eye Injuries, Penetrating / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D054327:Lubricants; D008297:Male; D020221:Optic Nerve Injuries / Q000175:diagnosis / Q000601:surgery*; D009915:Orbit / Q000293:injuries*; D014792:Visual Acuity
chemical_list: D054327:Lubricants