inferior rectus


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Related to inferior rectus: lateral rectus, medial rectus
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Noun1.inferior rectus - the ocular muscle whose contraction turns the eyeball down and medially
eye muscle, ocular muscle - one of the small muscles of the eye that serve to rotate the eyeball
References in periodicals archive ?
3%) and the inferior rectus was the most commonly involved muscle (38.
A CT scan showed a 22 mm long foreign body in close relation with the inferior rectus along the orbital floor causing an inflammatory reaction.
They performed right medial rectus muscle recession 18 months after the trauma, followed 10 months later by full-thickness tendon transposition of the superior and inferior rectus muscles (with Foster suture).
6%) 1/2 (50%) 3/5 (60%) Inferior rectus - 1/2 (50%) 1/5 (20%) Lateral rectus 1/3 (33.
Table 1: Extraocular examination of left eye Extraocular muscle Function Movement of left eye Medial rectus Adduction Absent Superior rectus Elevator in abduction Absent Inferior rectus Depressor in abduction Absent Inferior oblique Elevator in adduction Absent Superior oblique Depressor in adduction Present but not full Lateral rectus Abduction Absent
Magnetic resonance imaging (MRI) of the orbit showed thickening of all left-sided extra-ocular muscles, predominantly left lateral rectus and inferior rectus muscles with mild retro- orbital inflammatory changes and mild proptosis, consistent with orbital inflammatory pseudotumour (Figure-1).
If restriction to upgaze is demonstrated on the FDT, inferior rectus muscle (IR) restriction is present.
Mechanical entrapment of the orbital content most commonly the inferior rectus muscle followed by the inferior oblique muscle causes diplopia in up gaze and down gaze and the forced duction test in this case is positive.
No evidence of any entrapment of the inferior rectus muscle was seen.
Undercorrection with hypotropia, in one eye of another patient, required inferior rectus recession (Table-3).
Fortunately, in our patient there was no residual entrapment of the inferior rectus muscle and this was confirmed by forced-duction test.

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