moebius syndrome smile

What is Moebius syndrome? Moebius syndrome is an extremely rare birth neurological defect provoked by the absence or underdevelopment of the 6th and 7th cranial nerves, which control eye movements and facial expression. Congenital facial and abducens palsy was first depicted by Von Graefe (1880) and Moebius (1888), a German neurologist after whom the syndrome…