Typical Features of Duane Syndrome Type 1

𝗢𝗿𝗶𝗴𝗶𝗻𝗮𝗹 𝗗𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻: This is a patient seen for vestibular complaints, who on exam, was found to have (unrelated to her vestibular symptoms) impaired abduction OS. In adduction, there was narrowing of the palpebral fissure OS, a result of globe retraction due to co-contraction of the medial and lateral rectus muscles. This constellation of findings was consistent with a longstanding history of Duane syndrome type 1, and argues strongly against an acquired sixth nerve palsy for instance. There were no complaints of diplopia. 𝗡𝗲𝘂𝗿𝗼-𝗼𝗽𝗵𝘁𝗵𝗮𝗹𝗺𝗼𝗹𝗼𝗴𝘆 𝗮𝗻𝗱 𝗡𝗲𝘂𝗿𝗼-𝗼𝘁𝗼𝗹𝗼𝗴𝘆 𝗧𝗲𝘅𝘁𝗯𝗼𝗼𝗸 𝗟𝗲𝗴𝗲𝗻𝗱: During an evaluation for vestibular complaints, this patient was incidentally found to have impaired abduction OS. In adduction, there was narrowing of the palpebral fissure OS, a result of globe retraction due to co-contraction of the medial and lateral rectus muscles. This constellation of findings was consistent with a longstanding history of Duane syndrome type 1, and argues strongly against an acquired sixth nerve palsy for instance. There were no complaints of diplopia, and she was already aware of this diagnosis. https://collections.lib.utah. edu/ark:/87278/s6cz6x1g