Two additional scenarios for see-saw nystagmus: achiasma and hemichiasma

J Neuroophthalmol. 1998 Jun;18(2):112-3.


The discovery of canine achiasma and hemichiasma has been followed by the identification of human achiasma (four individuals, to date). See-saw nystagmus was present in all cases of achiasma (canine and human) and in one of two cases of canine hemichiasma studied. Human infants with see-saw nystagmus should be imaged for possible structural abnormalities of the optic chiasm.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Review

MeSH terms

  • Animals
  • Dogs
  • Eye Abnormalities / complications*
  • Humans
  • Nystagmus, Pathologic / etiology*
  • Optic Chiasm / abnormalities*
  • Vision Disorders / etiology