nystagmus (redirected from horizontal nystagmus)

nys·tag·mus  (n-stgms)

n.

A rapid, involuntary, oscillatory motion of the eyeball.

---

[New Latin, from Greek nustagmos, drowsiness.]

---

nys·tagmic (-mk) adj.

---

nystagmus

uncontrollable and rapid movement of the eyeball in any direction. — nystagmic, adj.

See also: Eyes

Thesaurus

Noun

1.

nystagmus - involuntary movements of the eyeballs; its presence or absence is used to diagnose a variety of neurological and visual disorders eye movement - the movement of the eyes physiological nystagmus - small involuntary tremors of the eyeballs; when it is eliminated by stabilizing the image on the retina, visual perception fades rapidly from fatigue of the retinal receptors rotational nystagmus - nystagmus caused by the body rotating rapidly; large slow movements of the eyeballs are in the direction of rotation post-rotational nystagmus - nystagmus caused by suddenly stopping the rapid rotation of the body; large slow movements of the eyeballs are in the direction opposite to the direction of rotation