5 Facts you should know about

Duane Syndrome

Duane Syndrome is a congenital eye movement disorder characterized by limited or absent horizontal eye movement and abnormal retraction or widening of the eye fissure upon attempted inward gaze

It results from aberrant development of the abducens (VI) and oculomotor (III) cranial nerves during early embryogenesis, leading to inadequate innervation of the lateral rectus muscle and inappropriate connections with the medial rectus muscle

There are three subtypes: Type 1, characterized by limited abduction; Type 2, featuring limited adduction; and Type 3, displaying limited abduction and adduction, with varying severity

Duane Syndrome may occur unilaterally or bilaterally, often associated with abnormal head posture or compensatory head movements to improve vision

Diagnosis involves clinical examination, assessing ocular motility, cranial nerve function, and associated anomalies, often requiring periodic ophthalmologic evaluation during childhood

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