Rapid, involuntary and repetitive movement of the eye. Note that under certain circumstances, this is normal and other times this is indicative of pathology. If there is a fast and slow phase to a nystagmus, it is named according to the direction of the fast phase.
This blog is provided for informational purposes only. The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. The details of any case mentioned in this post represent a typical patient that I might see and do not describe the circumstances of a specific individual.