Table 5.

Strabismus-Associated Disorders to Consider in the Differential Diagnosis of Duane Syndrome

DisorderClinical Features of the Disorder
Overlapping w/Duane syndromeDistinguishing from Duane syndrome
Common strabismusStrabismusFull eye movements
Sixth nerve palsyRestricted abduction, may be accompanied by esotropiaNo globe retraction or fissure narrowing
Usually acquired
Comitant esotropia w/crossed fixationMay appear to have abduction limitationFull abduction can be elicited if tested monocularly.
Congenital ocular motor apraxiaMay appear to have abduction limitationInability to generate horizontal saccades
Brown syndrome ("superior oblique tendon sheath syndrome")May appear to have abduction limitationInability to elevate the adducted eye actively or passively

From: Duane Syndrome

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