ophthalmoplegia

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ophthalmoplegia (off-thal-moh-plee-jiă) n. paralysis of the muscles of the eye. It may accompany exophthalmos due to thyrotoxicosis. external o. ophthalmoplegia affecting the muscles that move the eye. internal o. ophthalmoplegia affecting the iris and ciliary muscle. internuclear o. ophthalmoplegia due to a lesion in the brainstem, seen in patients with multiple sclerosis or stroke.

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