lateral rectus muscle


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Related to lateral rectus muscle: medial rectus muscle

lat·er·al rec·tus mus·cle

(lat'ĕr-ăl rek'tŭs mŭs'ĕl)
Origin, lateral part of the common tendinous ring that bridges superior orbital fissure; insertion, lateral part of sclera of eye; action, abduction; nerve supply, abducens.
Synonym(s): musculus rectus lateralis [TA] , abducens oculi.

lateral rectus muscle

Extraocular muscle. Origin: tendinous ring around optic nerve at rear of orbit. Insertion: temporal edge of eyeball in front of its equator. Nerve: abducens (CN VI). Action: turns eye laterally.
See: extraocular for illus.
See also: muscle
References in periodicals archive ?
The patient was satisfied with the current result, but there is room for improvement: The patient was advised that the remaining esotropia might be addressed by resection surgery on the previously untouched left lateral rectus muscle. However, the patient preferred to force left fixation by blurring the right eye for distance (+3 dpt).
For example 5.5mm from the limbus to grasp Medial rectus, 7mm from the limbus to grasp Lateral rectus muscle. Applied Anatomy of the extra ocular muscles were followed.5'6'7'8'9
Enters the orbit through the superior orbital fissure within the annulus of Zinn to innervate the lateral rectus muscles.
Because the abducent nerve supplies motor fibre to the retractor and lateral rectus muscles of the eye ball, injury to the nerve results in protrusion and medial deviation of the globe (Radostits et al., 2007).
In a series of 29 cases of acute unilateral sixth nerve palsy, complete recovery of eye movements was noted in 76% of patients treated with BoNT injection to the medial rectus muscle a mean of 40 days after the onset of lateral rectus muscle palsy.
It results from an absent or dysplastic abducens motor neurons with aberrant innervations of the lateral rectus muscle by the oculomotor nerve, from failure of normal development of the pontine abducens nucleus or nerve resulting in failure of the normal innervation of the lateral rectus muscle on the affected side.
The patients received 2 PD to 3 PD correction per millimeter of recession-resection of the remaining medial rectus muscle and 1PD to 2PD correction per millimeter of recession-resection of the remaining lateral rectus muscle. Using paralysis of the superior rectus as an example, the surgical approach was as follows.
We report an unusual presentation of sinonasal lymphoma in which the patient presented with no nasal symptoms--only a loss of vision in one eye and lateral rectus muscle palsy.
CECT orbit was done which revealed outward protrusion of left orbital globes with fusiform swelling of all recti muscles of left orbit and superior and lateral rectus muscle of right side with sparing of tendinous insertion.
Initial complaints are usually related to vision and can be attributed to the lesion's lateral extension and subsequent involvement of the VIth cranial nerve, which can lead to palsy of the lateral rectus muscle. Progressive involvement of the Und, IIIrd.