purpose: to describe the clinical findings, preoperative radiologic findings and results of surgery in a patient with congenital bilateral hypoplasia of medial rectus muscle case report: a 50-year-old man presented with large angle incomitant horizontal deviation with marked deficit of adduction of both eyes. mri finding defined very thin medial rectus muscle. intraoperatively medial rectus mus...

purpose: to identify the postoperative surgical outcomes and the changes in deviation in patients treated by bilateral medial rectus (bmr) recession for small to large angle esotropia with a minimum follow-up of two years methods: in this retrospective and consecutive case series, we reviewed medical records of 130 patients who had recession surgery for correction of esotropia between 2001-2011...

purpose: to investigate demographic, clinical and histopathologic features of consecutive exotropia. methods: patients with consecutive exotropia who underwent surgery in farabi hospital between september 2014 and april 2015 were enrolled in this study. after complete ophthalmologic examination and far and near deviation measurement, all patients with negative forced duction test underwent 4-mm...

purpose: to report a patient with exotropia due to medial rectus muscle entrapment as a complication of endoscopic dacryocystorhinostomy (edcr). case report: a 34-year-old female was referred with left exotropia 18 days after edcr for treatment of primary nasolacrimal duct obstruction. she had a large angle left exotropia in primary position as well as complete limitation of adduction and parti...

Although there is detailed knowledge on the organization of the motor neurons supplying the extraocular muscles, there are still some discrepancies concerning the results of different studies. This study is planned to reexamine the distribution of the motor neurons in the oculomotor nucleus of the rat. In the present study we used 20 young adult Sprague-Dawley rats in four groups which represen...

PURPOSE To investigate the effect of unilateral medial rectus muscle resection for recurrent exotropia after bilateral lateral rectus muscle recession for intermittent exotropia METHODS A retrospective analysis was made of thirtypatients who underwent unilateral medial rectus resection for recurrent exotropia. All had prior bilateral lateral rectus recession for intermittent exotropia. Data w...

INTRODUCTION Endoscopic sinus surgery can result in serious extraocular muscle dysfunction. The medial rectus muscle is more frequently affected than other extraocular muscles. METHODS A transconjunctival subperiosteal medial orbitotomy was successful in retrieving a partially extirpated medial rectus muscle after endoscopic sinus surgery. RESULTS A previous attempt to localize this muscle ...

BACKGROUND AND AIM Rectus muscle insertions are usually linear or slight curved with the anterior convexity. While operating squint surgeries, we found a presence of ridge-like structure at the medial rectus insertion. None of the other rectus muscle insertions had such structure. MATERIALS AND METHODS Patients undergoing squint surgery were included in the study. All the patients had negativ...

A midline experimental lesion separating the medial longitudinal fasciculi at and below the level of the abducens nuclei without damaging either fasciculus at the level of the nuclei has produced defects of ocular motility resembling those of clinical internuclear ophthalmoplegia. Electromyographic recordings during lateral gaze demonstrate: (1) lack of inhibition of the lateral rectus muscle i...

Purpose To investigate changes in volumes of extraocular muscle (EOM) compartments in unilateral superior oblique (SO) palsy using magnetic resonance imaging (MRI). Methods High-resolution, surface-coil MRI was obtained in 19 patients with unilateral SO palsy and 19 age-matched orthotropic control subjects. Rectus EOMs and the SO were divided into two anatomic compartments for volume analysis...