Moebius syndrome is a rare congenital neurological disorder defined by non-progressive palsy of cranial nerves VI and VII, leading to impaired lateral eye movements and facial immobility. Infants often present with poor sucking, incomplete eye closure, and difficulty feeding due to oropharyngeal muscle weakness. As children grow, challenges become more noticeable: limited facial expression affects articulation, while an incomplete blink reflex increases the risk of exposure keratopathy.
Many patients also exhibit associated abnormalities, including limb malformations, chest wall defects such as Poland sequence, and oromotor dysfunction, which require coordinated, multidisciplinary management. Speech development may be delayed because lip rounding, bilabial sounds, and facial resonance depend on muscles that remain weak or paralysed. Ophthalmologic surveillance is essential to prevent corneal injury, and early recognition of feeding difficulties can reduce the risk of aspiration and malnutrition.
Early physical, occupational, and speech therapy significantly improves functional outcomes, while surgical options such as facial reanimation may enhance symmetry and eye protection. Overall, Moebius syndrome underscores the complexity of cranial nerve development and the value of early, targeted rehabilitation.
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