Internuclear ophthalmoplegia
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Background
- Focal neuro deficit caused by injury or dysfunction of medial longitudinal fasciculus
Clinical Features
- Impaired adduction when attempted to gaze contralaterally to affected eye
- Contralateral eye abducts with nystagmus
- Divergence of eyes--> horizontal diplopia
Differential Diagnosis
- Multiple sclerosis (most common cause in young patients)
- Stroke
Evaluation
- Evaluate for underlying cause based on clinical presentation
Management
- Treat underlying condition