paralysis of the muscles of the eye. Internal ophthalmoplegia affects the muscles inside the eye: the iris (which controls the size of the pupil) and also the ciliary muscle (which is responsible for accommodation). External ophthalmoplegia affects the muscles moving the eye. Chronic progressive external ophthalmoplegia is a progressive disease of the extrinsic eye muscles leading to ptosis and then paralysis of the muscles; eye movements become increasingly frozen in the primary position. Ophthalmoplegia may accompany exophthalmos due to thyrotoxicosis. Internuclear ophthalmoplegia (INO), due to a lesion in the brainstem, is seen, for example, in patients with multiple sclerosis or stroke.

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  • ophthalmoplegia — ▪ eye disorder also called  extraocular muscle palsy     paralysis of the extraocular muscles (muscle) that control the movements of the eye (eye, human). Ophthalmoplegia usually involves the third (oculomotor), fourth (trochlear), or sixth… …   Universalium

  • ophthalmoplegia — Paralysis of one or more of the ocular muscles. [ophthalmo + G. plege, stroke] chronic progressive external o. (CPEO) a specific type of slowly worsening weakness of the ocular muscles, usually associated with a …   Medical dictionary

  • Ophthalmoplegia progressiva externa — Klassifikation nach ICD 10 H49.4 Ophthalmoplegia progressiva externa …   Deutsch Wikipedia

  • Ophthalmoplegia interna — Klassifikation nach ICD 10 H49.0 Lähmung des N. oculomotorius [III. Hirnnerv] …   Deutsch Wikipedia

  • ophthalmoplegia — noun A complete paralysis of the extraocular muscles which are responsible for eye movements …   Wiktionary

  • ophthalmoplegia — n. paralysis of the muscles of the eyeball …   English contemporary dictionary

  • ophthalmoplegia — [ɒfˌθalmə(ʊ) pli:dʒə, ɒpˌθalmə(ʊ) pli:dʒə] noun Medicine paralysis of the muscles within or surrounding the eye. Derivatives ophthalmoplegic adjective …   English new terms dictionary

  • ophthalmoplegia — oph·thal·mo·ple·gia …   English syllables

  • ophthalmoplegia — noun paralysis of the motor nerves of the eye • Hypernyms: ↑paralysis, ↑palsy …   Useful english dictionary

  • total ophthalmoplegia — ophthalmoplegia totalis ophthalmoplegia that affects both the extrinsic and intrinsic muscle structures of the eye …   Medical dictionary

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