Vertical oscillopsia in bilateral superior canal dehiscence syndrome.
case_report · Level V
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- Record sourced from PubMed, PMID 15007132.
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Abstract
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.
Medical subject headings
- Labyrinth Diseases
- Semicircular Canals
- Temporal Bone