title: Hypertropia following trochlear trauma.
abstract: Hypertropia following trauma to the trochlea is rare. The more widely recognized response of the trochlea to trauma is hypotropia or acquired Brown syndrome. We observed three cases of hypertropia following penetrating trauma to the trochlea. Each had computerized tomography and/or magnetic resonance imaging to assist in the understanding of the mechanism of the observed superior oblique dysfunction. The clinical course of these cases was variable. Awareness of the damaged trochlea's capacity to respond as a hypertropic as well as a hypotropic syndrome will allow for improved management of these unusual patients.
authors.affiliation: Department of Ophthalmology, Tufts-New England Medical Center, Boston, Mass. 02111.
authors.forename: R H
authors.initials: RH
authors.lastname: Legge
authors.forename: T R
authors.initials: TR
authors.lastname: Hedges
authors.forename: M
authors.initials: M
authors.lastname: Anderson
authors.forename: P D
authors.initials: PD
authors.lastname: Reese
mesh_terms: D000293:Adolescent; D000328:Adult; D004172:Diplopia / Q000209:etiology; D015807:Eye Injuries, Penetrating / Q000150:complications* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009915:Orbit / Q000000981:diagnostic imaging; D013285:Strabismus / Q000209:etiology*; D014057:Tomography, X-Ray Computed; D014321:Trochlear Nerve / Q000000981:diagnostic imaging; D061247:Trochlear Nerve Injuries