The nation's leading supporter of biomedical research on disorders of the brain and nervous system. Seizures may also occur.
Intellectual problems vary in severity among individuals.
While some children with SOD have normal intelligence, others have learning disabilities and mental retardation. Most, however, are developmentally delayed due to vision impairment or neurological problems. Treatment for SOD is symptomatic. Hormone deficiencies may be treated with hormone replacement therapy. The optical problems associated with SOD are generally not treatable.