[Alternating nystagmus].
D000293:Adolescent; D002648:Child; D004584:Electronystagmography; D005260:Female; D006801:Humans; D009759:Nystagmus, Pathologic / Q000150:complications / Q000175:diagnosis*; D010985:Platybasia / Q000150:complications / Q000175:diagnosis*
Nystagmus alternans.