Infrared Oculography of Duane's Retraction Syndrome Type I

Duane's retraction syndrome (DRS) Type I, is a congenital eye movement disorder characterized by decreased abduction past midline in the affected eye, slow abduction velocities and palpebral fissure narrowing on attempted adduction. Pathologic examination of patients with Duane's syndrome have shown an absence of the abducens nuclei and peripheral nerves on the affected side. The lateral rectus muscle is aberrantly innervated by branches of the inferior division of the oculomotor nerve (4,5).