Mental retardation may also occur. As children get older, lack of facial expression and inability to smile become the dominant visible symptoms. Mobius syndrome may be accompanied by Pierre Robin syndrome, a disease in which there is an abnormally small jaw, downward displacement of the tongue, and a soft, cleft palate. It may also be accompanied by Poland's anomaly, a disease characterized by abnormal development of one side of the chest and limb deformities. There is no specific course of treatment for Mobius syndrome.
Treatment is supportive and symptomatic.
Infants may require feeding tubes or special bottles to maintain sufficient nutrition. Surgery may correct strabismus and improve limb and jaw deformities. Physical and speech therapy may improve motor skills and coordination, and help to better control speaking and eating abilities. Plastic reconstructive surgery may be beneficial in some individuals. There is no cure for Mobius syndrome.