Nystagmus

Definition 1

Involuntary movements of the eyeballs. The presence or absence of nystagmus is often used in the diagnosis of a variety of neurological and visual disorders. (NCI Thesaurus)

Definition 2

A disorder characterized by involuntary movements of the eyeballs. (NCI Thesaurus/CTCAE)

Definition 3

Involuntary movements of the eye that are divided into two types, jerk and pendular. Jerk nystagmus has a slow phase in one direction followed by a corrective fast phase in the opposite direction, and is usually caused by central or peripheral vestibular dysfunction. Pendular nystagmus features oscillations that are of equal velocity in both directions and this condition is often associated with visual loss early in life. (Adams et al., Principles of Neurology, 6th ed, p272) (NLM, Medical Subject Headings)

YOU MAY ALSO LIKE

Nyquist Frequency

A frequency equal to half the sampling rate used in digitizing a continuously varying process.

Nyquil

A commercial combination preparation, by Vicks, containing acetaminophen, dextromethorphan hydrobromide and doxylamine succinate used to relieve symptoms of cold and flu. Acetaminophen…

Nyctalopia

Inability to see clearly in dim light.

NY-ESO-B

A tumor-associated antigen belonging to the family of immunogenic testicular proteins that are aberrantly expressed in human cancers in a lineage-nonspecific…

NY-ESO-1b Peptide Vaccine

A recombinant nonapeptide used as an antineoplastic vaccine. NY-ESO-1b peptide vaccine contains the amino acid sequence SLLMWITQC, derived from the cancer-testis tumor…

NY-ESO-1/LAGE-1 Peptide Vaccine

A cancer vaccine containing HLA class I- and II-binding peptides derived from the NY-ESO-1/LAGE-1 cancer/testis antigen with potential immunostimulatory and antineoplastic…