Cervically Induced Ocular Torsion: Physiological and Clinical Aspects

Ocular torsion was measured in five subjects during sinusoidal lateral tilt (amplitude 25°, 0.2 Hz). The cervical contribution to ocular torsion was best visible as the difference between the signals obtained in conditions with only head tilt and conditions with whole body tilt. Contribution of the...

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Bibliographic Details
Published in:Acta oto-laryngologica 1998, Vol.118 (5), p.613-617
Main Author: Willem Bles, Eric Groen, Jelte E. Bos, Vianney De Jong, Joachim Lok
Format: Article
Language:English
Subjects:
Adult
Analysis of Variance
Biological and medical sciences
Eye Movements - physiology
Female
Humans
Male
Medical sciences
Middle Aged
Ophthalmology
Reference Values
Rotation
Syndrome
Tilt-Table Test - methods
Tilt-Table Test - statistics & numerical data
Torsion Abnormality - physiopathology
Vision disorders
Whiplash Injuries - physiopathology
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Description
Summary:Ocular torsion was measured in five subjects during sinusoidal lateral tilt (amplitude 25°, 0.2 Hz). The cervical contribution to ocular torsion was best visible as the difference between the signals obtained in conditions with only head tilt and conditions with whole body tilt. Contribution of the neck did not affect the slow component, but produced an anticompensatory modulation of the beating field offset by means of saccades (analogous to gaze shift). Static tilt conditions (25° tilt) of the trunk only, the head only or the whole body showed similar data, although of smaller amplitude. The results from patients suffering from post-whiplash syndrome were similar to those of healthy subjects, showing large intersubject variability. The reduced tolerance to head tilt of whiplash patients restricts useful implementation of this sort of test in the clinic.
ISSN:0001-6489
1651-2251
DOI:10.1080/00016489850183070