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August 1977

Normal Saccadic Structure of Voluntary Nystagmus

Author Affiliations

From the Neuro-ophthalmology Unit, Departments of Neurological Surgery, (Drs Shults and Hoyt), Neurology (Drs Stark and Ochs), and Ophthalmology (Dr Shults), University of California, San Francisco. Dr Shults is now with the Department of Ophthalmology, Good Samaritan Hospital and Medical Center, Portland, Ore, and the Departments of Ophthalmology and Neurology, University of Oregon Health Sciences Center, Portland.

Arch Ophthalmol. 1977;95(8):1399-1404. doi:10.1001/archopht.1977.04450080109013

• Infrared oculographic recordings in three cases showed that voluntary nystagmus is composed of rapidly alternating small-amplitude saccades with normal velocity-amplitude characteristics. These bursts of reciprocating saccades are routinely associated with oscillopsia. This means in terms of oculomotor control theory that the brain stem mechanism mediating voluntary nystagmus must bypass the level in the oculomotor path where the saccadic corollary discharge (efferent copy) is initiated.

(Arch Ophthalmol 95:1399-1404, 1977)

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