Vertical oscillopsia in bilateral superior canal dehiscence syndrome.
A patient sought treatment for vertical oscillopsia and impaired vision during locomotion, and unsteadiness of gait. Positive fistula tests and CT of the temporal bones confirmed a diagnosis of bilateral superior canal dehiscence. An impairment of the superior canal vestibulo-ocular reflex, documented by three-dimensional search coil eye movement recordings for oblique (single) and downward pitch head motion (bilateral canal testing), is proposed to induce vertical rather than torsional-vertical oscillopsia during locomotion.
Department of Neurology, Institute of Clinical Radiology, Klinikum Grosshadern, Ludwig-Maximilians University, Munich, Germany. angela.deutschlaender@nro.med.uni-muenchen.de
A
A
Deutschländer
M
M
Strupp
K
K
Jahn
L
L
Jäger
F
F
Quiring
T
T
Brandt
D005260:Female; D020233:Gait Disorders, Neurologic / Q000209:etiology; D006801:Humans; D007759:Labyrinth Diseases / Q000175:diagnosis* / Q000503:physiopathology; D008875:Middle Aged; D011859:Radiography; D012665:Semicircular Canals / Q000000981:diagnostic imaging; D013577:Syndrome; D013701:Temporal Bone / Q000000981:diagnostic imaging; D014717:Vertigo / Q000209:etiology; D014786:Vision Disorders / Q000209:etiology