10 Causes of Nystagmus
Reviewed: Dr. Gromatzky
Cause #7: Noonan Syndrome
Noonan syndrome is a hereditary disorder. Named after a pediatric cardiologist, it is quite a common autosomal dominant disorder. Patients who are affected often experience congenital heart defects, learning difficulties, short stature, pectus excavatum, characteristic facial features like flat nose bridge or webbed neck, and impaired blood clotting. Noonan syndrome is seen in 1 in every 1,000 to 2,500 children worldwide. It is a common genetic syndrome.
However, the severity of symptoms can vary greatly and is not always identified in the early ages. Besides nystagmus, other symptoms seen in the eyes are ptosis, hypertelorism, proptosis, strabismus, epicanthal folds, and refractive visual errors.
Advertisement
