Nystagmus

Definition

Nystagmus is an involuntary, rapid movement of the eyes, which can be horizontal, vertical, or rotary. It is often a symptom of neurological disorders such as Multiple Sclerosis (MS).

5 Must Know Facts For Your Next Test

1. Nystagmus can be a symptom of Multiple Sclerosis due to demyelination affecting ocular motor nerves.
2. Certain medications used in treating MS may help reduce the severity of nystagmus.
3. Nystagmus can affect balance and coordination, leading to dizziness and difficulty with mobility.
4. The presence of nystagmus may require adjustments in pharmacological treatment plans for MS patients.
5. Diagnostic tools like MRI and VEP (Visual Evoked Potential) tests are used to identify nystagmus in MS patients.

Review Questions

• How does nystagmus relate to Multiple Sclerosis pathophysiology?
• What are the potential impacts of nystagmus on a patient's daily life?
• Which diagnostic tools are commonly used to detect nystagmus in MS patients?

Related terms

Ocular Motor Nerves: Nerves responsible for controlling eye movements.

Demyelination: Loss or damage of the myelin sheath insulating nerve fibers, common in MS.

Visual Evoked Potential (VEP): A test measuring electrical activity in the brain in response to visual stimuli.