Genetic Studies of Strabismus, Congenital Cranial Dysinnervation Disorders (CCDDs), and Their Associated Anomalies

Inclusion Criteria: * The Engle Lab is very interested in enrolling individuals with congenital conditions related to eye movement, cranial nerve and brainstem-based dysfunction, often broadly referred to as congenital cranial dysinnervation disorders (CCDDs). Exclusion Criteria: * Individuals with cranial nerve disorders associated with known disorders, such as Saethre-Chotzen associated with established genetic mutations, or acquired conditions including trauma, stroke, tumor or spinal cord injuries.