purpose: compaison of excyclotorsion induced by horizontal transposition of vertical rectus muscles versus vertical transposition of horizontal rectus muscles in rabbit eyes. methods: in this exprimental study, group 1 underwent full tendon nasal transposition of the superior rectus and full tendon temporal transposition of the inferior rectus (10 adult rabbits); group 2 underwent superior tran...

purpose : to report a new familial presentation of hypoplasia and absence of superior rectus in the form of unilateral monocular elevation deficiency case report : a 7-year-old boy was referred to our center (poostchi eye clinic) with a chief complaint of ocular misalignment in his right eye since birth. one of his siblings was a known case of unilateral monocular elevation deficiency and was o...

PURPOSE To report masked superior oblique muscle tightness as a possible mechanism causing A-pattern exotropia with intorsion after inferior rectus muscle recession in the context of thyroid eye disease. METHODS Three patients with thyroid eye disease and involvement of the superior oblique muscle are presented, along with a fourth comparison case without superior oblique muscle involvement. ...

BACKGROUND AND PURPOSE The lateral rectus-superior rectus band is an orbital connective tissue structure that has been implicated in a form of strabismus termed sagging eye syndrome. Our purpose was to define the normal MR imaging and CT appearance of this band in patients without strabismus. MATERIALS AND METHODS Orbital MR imaging and CT examinations in 100 consecutive patients without stra...

BACKGROUND Isolated superior rectus palsy due to a contralateral midbrain lesion has not been reported. CASE DESCRIPTION A 71-year-old woman suddenly developed diplopia. Examination showed that she had isolated superior rectus paresis. Magnetic resonance imaging showed a tiny infarct at the area of the oculomotor nucleus on the contralateral side. CONCLUSION Isolated superior rectus palsy m...

Purpose To present the results of bilateral superior rectus transposition with medial rectus recession in a case of chronic bilateral sixth nerve palsy. Observation Bilateral superior rectus transposition with medial rectus recession resulted in full correction of esotropia with resolution of horizontal diplopia, improvement in abduction, and regain of stereoacuity in our case. There was mini...

purpose: to report a case of partial agenesis of the inferior rectus muscle in a child who was presented because of ocular misalignment and a deficient depression of the right eye. patient and findings: the patient was a 4-year-old girl. preoperative ct scans confirmed the clinical diagnosis of inferior rectus agenesis. the patient underwent augmented transposition of horizontal recti muscles w...

1) The author established the representation of the lower motor center of all the extrinsic ocular muscles by means of HRP labeling in the rat. 2) The muscles which are supplied by the neurons on both sides of the oculomotor nuclei are the levator palpebrae superioris, superior rectus, medial rectus, inferior oblique, inferior rectus, superior oblique and lateral rectus. 3) The muscles which ar...

PURPOSE To employ magnetic resonance imaging (MRI) to seek evidence of compartmental lateral rectus atrophy consistent with a lesion involving selective denervation of only 1 of the 2 neuromuscular compartments of the lateral rectus. DESIGN Prospective observational case-control series. METHODS At a single institution, surface coil coronal MRI was obtained at 312 μm resolution in quasi-coro...