Identifying and Treating Ocular Motor Palsies
Except in cases of trauma, most acquired ocular motor palsies of cranial nerves III, IV, or VI signal an underlying systemic or neurologic disorder.
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By
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Erin M. Draper, OD, FAAO
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March 2, 2026
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1
Acquired ocular motor palsies of cranial nerves III, IV, or VI often indicate underlying systemic or neurologic disorders.
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Diplopia is the most common symptom of ocular motor palsies, requiring differentiation between binocular and monocular types for accurate diagnosis.
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A comprehensive assessment of ocular alignment and motility is essential, as subtle paresis can be missed without thorough testing.
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4
Cranial nerve palsies present characteristic patterns of deviation, with specific signs indicating potential serious conditions like aneurysms.
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Associated neurologic function should be assessed to narrow differential diagnoses and determine the urgency of systemic workup.
