Acquired Orbital Retraction Syndrome

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Abstract
• Four patients with infiltrative orbital disease involving an extraocular muscle demonstrated a characteristic retractionmotility pattern. The cardinal feature was retraction of the globe on attempted gaze opposite the field of action of the involved muscle. Variable eye movement limitation was present in the field of action and opposite to the field of action of the involved muscle. When motility was restricted, the forced-duction test was positive. Modest proptosis and episcleral vascular congestion over the extraocular muscle insertion were associated physical findings. Dysthyroid eye disease, inflammatory myositis, and neoplasms are among the infiltrative myopathies that may produce an acquired orbital retraction syndrome.

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