Torsional eye movements in patients with skew deviation and spasmodic torticollis: Responses to static and dynamic head roll

L. Averbuch-Heller, K. G. Rottach, A. Z. Zivotofsky, J. I. Suarez, A. D. Pettee, B. F. Remler, R. J. Leigh

Research output: Contribution to journalArticle

Abstract

We measured torsional eye movements induced by sinusoidal rotation or static tilt of the head in roll while viewing a far or near target in 4 patients with skew deviation due to brainstem lesions, 4 patients with spasmodic torticollis (ST), 2 patients with unilateral eighth nerve section (VIIIS), and 10 normal subjects. Torsional nystagmus was present in all 4 patients with skew deviation. In subjects and patients, responses to both sinusoidal and static roll were larger while viewing the far target, consistent with factors dictated by geometry. Response gains to sinusoidal roll were abnormal in 3 patients with skew (increased in one, decreased in two), abnormal in 3 with ST (increased in 1, decreased in 2), and in abnormal both VIIIS patients (decreased). Greater abnormalities were evident in 3 skew patients while rolling away from the side of their brainstem lesions and in both VIIIS patients while rolling toward their lesioned ears. There were similar but less pronounced changes during static head roll. We conclude that patients with skew, ST, and VIIIS may all have abnormal ocular counter- rolling that is more evident during dynamic testing while viewing a far target. Such abnormalities endure because of the limited influence exerted by vision on torsional eye movements.

Original languageEnglish (US)
Pages (from-to)506-514
Number of pages9
JournalNeurology
Volume48
Issue number2
DOIs
StatePublished - Feb 1997
Externally publishedYes

ASJC Scopus subject areas

  • Clinical Neurology

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    Averbuch-Heller, L., Rottach, K. G., Zivotofsky, A. Z., Suarez, J. I., Pettee, A. D., Remler, B. F., & Leigh, R. J. (1997). Torsional eye movements in patients with skew deviation and spasmodic torticollis: Responses to static and dynamic head roll. Neurology, 48(2), 506-514. https://doi.org/10.1212/WNL.48.2.506