Definition of NystagmusNystagmus: Rapid, rhythmic, repetitious, and involuntary eye movements. Nystagmus can be horizontal, vertical, or rotary. Whatever form it takes, nystagmus is an abnormal eye finding and a sign of disease within the eye or the nervous system. Last Editorial Review: 3/19/2012
Back to MedTerms online medical dictionary A-Z List Need help identifying pills and medications? |
Get the latest health and medical information delivered direct to your inbox FREE!


