Hostname: page-component-8448b6f56d-xtgtn Total loading time: 0 Render date: 2024-04-24T03:50:26.641Z Has data issue: false hasContentIssue false

Downbeat nystagmus during eye closure

Published online by Cambridge University Press:  29 June 2007

Abstract

Summary

Two patients with dizzy spells demonstrated downbeat nystagmus during eye closure. The eye movements were examined by simultaneous horizontal and vertical electro-oculography. As the eyeballs were depressed to the midline position during eye closure, downbeat nystagmus appeared. There were no remarkable neurological findings in either patient. The pathophysiology of this nystagmus remains to be defined.

Type
Clinical Records
Copyright
Copyright © JLO (1984) Limited 1987

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Baloh, R. W. and Spooner, J. W. (1981) Downbeat nystagmus. A type of central vestibular nystagmus. Neurology (Minneapolis), 31: 304310.CrossRefGoogle ScholarPubMed
Cogan, D. G. (1948) Neurologic significance of lateral conjugate deviation of the eyes on forced closure of the lids. Archives of Ophthalmology, 39: 3742.CrossRefGoogle ScholarPubMed
Cohen, B., Suzuki, J. and Bender, M. B. (1964) Eye movements from semicircular canal. Nerve stimulation in the cat. Annals of Otology, Rhinology and Laryngology, 73: 153169.CrossRefGoogle ScholarPubMed
Collewijn, H., Van Der Steen, J. and Steinman, R. M. (1985) Human eye movements associated with blinks and prolonged eyelid closure. Journal of Neurophysiology, 54: 1127.CrossRefGoogle ScholarPubMed
Gacek, R. R. (1984) Cupulolithiasis and posterior ampullary nerve transection. Annals of Otology, Rhinology and Laryngology, Supplement, 112: 2529.CrossRefGoogle ScholarPubMed
Goebel, J. A., Stroud, M. H., Levine, L. A. and Muntz, H. R. (1983) Vertical eye deviation and nystagmus inhibition during mental tasking. Laryngoscope, 93: 11271132.CrossRefGoogle ScholarPubMed
Schlag, J., Merker, B. and Schlag-Rey, M. (1983) Comparison of EOG and search coil techniques in long-term measurements of eye position in alert monkey and cat. Vision Research, 23: 10251030.CrossRefGoogle ScholarPubMed
Tjernström, Ö. (1973) Nystagmus inhibition as an: effect of eye closure. Acta Otolaryngologica, 75: 408418.CrossRefGoogle ScholarPubMed
Zee, D. S., Friendlich, A. R. and Robinson, D. A. (1974) The mechanism of downbeat nystagmus. Archives of Neurology 30: 227237.CrossRefGoogle ScholarPubMed