Vertical oscillopsia in bilateral superior canal dehiscence syndrome.
Deutschlander, A. MD; Strupp, M. MD; Jahn, K. MD; Jager, L. MD; Quiring, F.; Brandt, T. MD, FRCP
62(5):784-787, March 9, 2004.
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mdash;: 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.
(C) 2004 American Academy of Neurology