What does jerk nystagmus mean?
Jerk nystagmus, the more common type, is characterized by eyes that drift slowly in one direction and then jerk back the other way. Doctors may notice nystagmus in a person being evaluated for dizziness, vertigo and other balance problems affecting the inner ear.
What is acquired pendular nystagmus?
Acquired pendular nystagmus is comprised of quasi-sinusoidal oscillations of the eyes significantly affecting gaze holding and clarity of vision. The most common causes of acquired pendular nystagmus include demyelinating disorders such as multiple sclerosis and the syndrome of ocular palatal tremor.
Why do my eyes jump back and forth?
Nystagmus is a medical condition in which the eyes move involuntarily, often shaking back and forth. These involuntary movements may be horizontal, vertical, or sometimes even rotational. The movements may be very subtle, very prominent, or somewhere in between. They can be fast or slow.
What makes eyes move back and forth?
INS (a type of nystagmus usually diagnosed during infancy), is sometimes called “early-onset nystagmus”. This type of nystagmus typically causes the eyes to move back and forth horizontally, much like a pendulum. This form of nystagmus is typically mild and is not always caused by an underlying health condition.
What does it mean when your eyes move back and forth rapidly?
What is seesaw nystagmus?
Seesaw nystagmus is a pendular oscillation that consists of elevation and intorsion of one eye and depression and extorsion of the fellow eye that alternates every half cycle.
What does it mean when someone’s eyes dart back and forth?
What is rebound nystagmus?
Rebound nystagmus, a common cerebellar sign, is a transient nystagmus that appears on returning to straight-ahead gaze after prolonged eccentric gaze. The slow phases of rebound nystagmus are in the direction of prior eccentric gaze.
What does pendular nystagmus feel like?
Pendular nystagmus refers to the waveform of an involuntary eye movement. In pendular nystagmus the eye moves in sinusoidal trajectory, similar to that of a pendulum. Pendular nystagmus generally does not have a “fast phase” including a saccade, but is composed entirely of slow eye movements.