Sturge-Weber syndrome is a rare condition that is present at birth and affects the nervous system. The child will have a birthmark, usually on the face, called a port-wine stain.

When Sturge-Weber syndrome affects the brain, seizures may develop during infancy that can interfere with normal development. Abnormal growth of blood vessels in one or both eyes often leads to increased pressure inside the eye and glaucoma. Other symptoms may include muscle weakness and developmental delays.

Treatment may include medicines to reduce seizures, a laser to remove port-wine stain birthmarks, and physiotherapy if muscle weakness develops. If the child has glaucoma, eyedrops or surgery may be needed.