BACKGROUND The anti-elevation syndrome is an adverse outcome of anterior transposition of the inferior oblique muscle. The presumed cause is an excessive anti-elevating force vector that occurs with attempted elevation in abduction. This causes apparent overaction of the contralateral inferior oblique muscle due to fixation duress. It has been suggested that excessive residual extorsion may hel...

b ackground: in 1991, wright described a superior oblique expander procedure for browns syndrome and superior overaction with good results. originally, this procedure has been performed with silicone band expander. the aim of this study was to report the results of treatment of a series of patients with a-pattern strabismus associated with overacting superior oblique muscle using the fascia lat...

PURPOSE To correlate between the clinical degree of inferior oblique muscle (IO) overaction and the histopathological changes of the muscle. SETTINGS Departments of Ophthalmology and Pathology, Faculty of Medicine, Ain Shams University, Cairo, Egypt. PATIENTS AND METHODS Biopsies from 12 IO muscles were taken during strabismus surgery for cases of IO muscle overaction. One biopsy from a nor...

Objectives: Inferior oblique muscle overaction (IOOA) is a common ocular motility disorder. Ocular Vestibular Evoked Myogenic Potentials (oVEMP) are tests that evaluate the reflex pathway between utricular macula and inferior to detect vestibular diseases. Our study of great importance as it first in literature effect on oVEMP parameters. Methods: Thirty-five patients with unilateral (IOOA grou...

BACKGROUND Refractive errors, strabismus, nystagmus, amblyopia, and cortical visual impairment are observed in 50 to 90 % of patients with cerebral palsy. Ocular abnormalities are known to differ according to cerebral palsy type, and spastic type has been reported to be more likely to be associated with ocular defects than the athetoid and ataxic types. METHODS A retrospective review of medic...

Background: In 1991, Wright described a superior oblique expander procedure for browns syndrome and superior overaction with good results. Originally, this procedure has been performed with silicone band expander. The aim of this study was to report the results of treatment of a series of patients with Apattern strabismus associated with overacting superior oblique muscle using the fascia lata ...

The paradigm that an "underacting" extraocular muscle is always atrophic or hypoplastic and that an overacting extraocular muscle should always be enlarged leads to inconsistencies with clinical observations. These include findings of "overacting" inferior oblique muscles, superior rectus muscle overaction or contracture syndrome, and normal extraocular muscle diameters in patients with apparen...