Disorder of conjugate lateral gaze in which the affected eye shows impairment of adduction
Aetiology
- Injury/dysfunction in the medial longitudinal fasciculus (tract which acts as the central connection for the oculomotor nerve, trochlear nerve, and oculomotor nerve)
- In younger patients, MS is a common cause
- Older patients generally have a vascular aetiology (stroke)
Clinical presentation
- Impairment of adduction
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