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Departments of Neurology (Dr. Maas, P. Spiegel. and Dr. Leigh), Otolaryngology, and Biomedical Engineering (Dr. Leigh). Cleveland V.A. Medical Center and University Hospitals, Case Western Reserve University, Cleveland, OH; and Departments of Neurology (Drs. Ashe and Zee) and Ophthalmology (Dr. Zee), Johns Hopkins Hospital, Baltimore, MD.
We studied the ocular motor abnormalities in 4 patients chronically addicted to sniffing glue containing toluene. They showed acquired pendular nystagmus with horizontal and vertical components. One patient also showed saccadic oscillations. The pendular nystagmus may be a manifestation of a disturbance in brainstem-cerebellar connections secondary to the toxic effect of toluene on white matter.
Address correspondence and reprint requests to Dr. R. John Leigh, Department of Neurology, University Hospitals of Cleveland, 2074 Abington Road, Cleveland, OH 44106.
Supported by NIH grant EY06717, the Department of Veterans Affairs and the Evenor Armington Fund (Drs. Leigh and Maas) and NIH grant EY01849 (Dr. be), and the Fellowship in Neuroscience from the Charles A. Dana Foundation (Dr. Ashe).
Received April 23, 1990. Accepted for publication in final form July 5, 1990.
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