The purpose of this article is to discuss several unusual and comparatively rare forms of nystagmus which we have seen and to present a detailed report of a case. Two types of ocular nystagmus, volitional and occupational, and a form of mixed nystagmus due to compression of the upper cervical portion of the cord, are considered.
Fundamentally, nystagmus may be of vestibular, cerebellar, cerebral, upper cervical or ocular origin. The optic system is involved in all forms, but it is only in the ocular type that it is directly affected. In all other cases it is involved indirectly by way of the vestibular system. The vestibular system may be the seat of origin of irritative phenomena and transmit the abnormal impulses to the ocular system, or the pathologic change may be in the cerebrum, the cerebellum or the upper cervical portion of the cord, in which event the vestibular system,
SMITH HC, RIESENMAN FR. UNUSUAL FORMS OF NYSTAGMUSWITH A REVIEW OF THE LITERATURE. Arch Ophthalmol. 1945;33(1):13–15. doi:10.1001/archopht.1945.00890130027003
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