extraocular muscle


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extraocular muscle

(ĕk′strə-ŏk′yə-lər)
n.
Any of the six small muscles that control movement of the eyeball within the socket.

extraocular muscle

Abbreviation: EOM
Six muscles that attach outside the eyeball and that move the eye in its socket. The EOM are: the inferior and superior oblique muscles, and the lateral, medial, inferior, and superior rectus muscles.
See: extraocular for illus.
See also: muscle
References in periodicals archive ?
The extraocular muscles showed no movement in all cardinal directions of the eye, and it was centrally fixed in the orbit.
Ocular computed tomography showed enlargement of the extraocular muscles on the binoculus.
Strabismus typically includes inadequacy coordination between the extraocular muscles, which bares directing the gaze of both eyes at once to the same point in space; it thus inhibits suitable binocular vision (Bernays and Smith, 1999).
The clinical features of patients with OM as a whole and in the LOOM and SEOM groups are separately provided in Table 2, and the distribution of the extraocular muscle involvement is provided in Table 3.
Each eye is attached to six muscles, the extraocular muscles, which move the eye.
Unusual metastases of lung cancer to colon and to the extraocular muscles that were detected by PET-CT have been reported [14,15].
GCs are particularly effective on active disease including soft-tissue inflammatory changes, optic neuropathy, and also on extraocular muscle dysfunction (if not fibrotic), but lesser on proptosis.
Action of the Extraocular Muscles with the Eye in Primary Position Muscle Primary Action Secondary action Tertiary Action Medical rectus Adduction Lateral rectus Abduction Superior rectus Elevation Intorsion Adduction Inferior rectus Depression Extorsion Adduction Superior oblique Intorsion Depression Abduction Inferior oblique Extorsion Elevation Abduction
Correction of ptosis or pseudoptosis in congenital Double elevator palsy be either extraocular muscle or lid surgery.
Yilan isirigi sonrasi ekstraokuler kas felci/ Extraocular muscle palsy after snakebite 136
Illustrated with full-color and b&w images, it incorporates new findings of the past 16 years in eyelid anatomy, the orbital fascial connective tissue structures, and extraocular muscle pulley systems, and refinements in other anatomic systems including the vascular, neural, and muscular systems.
Early diplopia indicates involve- ment of extraocular muscle either through entrap- ment (usually through inferior rectus or oblique), oedema, haemorrhage or damage to motor nerves.