Duane retraction syndrome comprises a group of motility disturbances in which the common feature is co-contraction of medial and lateral rectus muscles on attempted adduction of the involved eye(s). Abnormal clinical features associated with DRS include horizontal deviation in primary position, abnormal head position, retraction of the globe on attempted adduction leading to pseudoptosis, up sh...

PURPOSE To improve understanding of the binocular control of saccades by making high-resolution eye movement recordings in patients with unilateral Duane retraction syndrome (DRS) type I (marked by congenital absence of the sixth cranial nerve). METHODS Binocular eye movements were recorded in four patients in binocular viewing conditions during a saccade task. RESULTS Affected-side gaze sh...