What neurological disorder is characterized by abnormal eye movements due to vestibular dysfunction?

Nystagmus is characterized by involuntary, repetitive eye movements that can be horizontal, vertical, or rotational. These abnormal eye movements often result from vestibular dysfunction, which affects the balance and spatial orientation systems in the body. The vestibular system, located in the inner ear, plays a crucial role in maintaining balance and coordinating eye movements with head position and motion.

In nystagmus, the eye movements can arise from various causes, including congenital issues, vestibular disorders, neurological conditions, or metabolic disorders. The hallmark of nystagmus is that it is often initiated or exacerbated by changes in head position, confirming its association with vestibular function.

While other conditions listed may involve eye movement abnormalities or neurological features, they do not specifically describe the involuntary eye movements seen in nystagmus that stem from vestibular dysfunction. For instance, Tourette syndrome primarily involves motor and vocal tics, while Lermoyez syndrome describes a specific type of episodic vertigo and vestibular dysfunction but not nystagmus itself. Vestibular neuritis can indeed lead to nystagmus as a symptom, but it is not a direct characterization of the disorder itself; rather, it represents a condition that can cause n