Two patients with see-saw nystagmus are presented. The nystagmus is usually due to a suprasellar lesion associated with a bitemporal hemianopsia or a rostral midbrain lesion. The nystagmus is conjugate and torsional with a dissociated vertical vector so that the intorting eye rises and the extorting eye falls. Rare examples of congenital see-saw have a reverse relationship between the torsion and vertical movements.
Robert B. Daroff, MD, Professor of Neurology, School of Medicine, CASE Western Reserve University, University Hospitals - Case Medical Center
Spencer S. Eccles Health Sciences Library, University of Utah