
seesaw nystagmus case report elucidating the mechanism .                
  the eighth recorded case of see-saw nystagmus is reported . features  
in this case are analyzed and evidence to suggest that this form of     
nystagmus is ocular rather than central in origin is offered . see-saw, 
nystagmus, unlike true vertical nystagmus, is not of itself indicative  
of a brain stem lesion .                                                
