Objective. To evaluate and quantify the effect of inferior oblique muscle weakening on horizontal deviations. Methods. The medical files of patients who had undergone an inferior oblique weakening as a single procedure were all reviewed. The main measures were the type of inferior oblique overaction (IOOA), pre- and postoperative amount of IOOA, and horizontal deviations in primary position. Re...

A characteristic pattern of dissociated eye movements was observed in a large proportion of our patients with a variety of craniosynostosis syndromes. These anomalies simulate overaction of the inferior oblique and underaction of the superior oblique muscles which, however, cannot fully explain the abnormalities. In a number of cases, excyclorotation of the muscle cone was observed, with the up...

this article presents a new technique for weakening the superior oblique muscle by lengthening it's tendon. lengthening is accomplished by a nasal superior oblique tenotomy, and by inserting a segment of silicone band 240 between the cut ends of the tendon. this technique is useful for the treatment of brown syndrome and cases with superior oblique overaction.

THE following series of 100 consecutive cases operated on for convergent concomitant squint is recorded to; show the degree of success which can be obtained by operation combined with orthoptic treatment. The patients were children from 6 to 14 years old, referred from the Salford Education. Committee Clinic and operated on at the Salford Municipal Hospital. It is estimated that in the orthopti...

PURPOSE To elucidate the genetic or environmental background for clinical features in the three major types of comitant strabismus. METHODS Interview based on a questionnaire asking background factors such as family history of strabismus and abnormalities in pregnancy and delivery was conducted with 101 consecutive patients with infantile esotropia (5-180 months of age), 83 with accommodative...

Anterior transposition of the inferior oblique muscle (ATIO) and myectomy of the inferior oblique muscle (MIO) are surgical methods for treating dissociated vertical deviation (DVD) and are also used in patients with coexisting inferior oblique muscle overaction (IOOA). In order to compare the outcomes of these methods, a study of ATIO and MIO was carried out on patients with DVD of at least 5 ...

We characterized and compared the characteristics of Ca2+ movements through the sarcoplasmic reticulum of inferior oblique muscles in the various conditions including primary inferior oblique overaction (IOOA), secondary IOOA, and controls, so as to further understand the pathogenesis of primary IOOA. Of 15 specimens obtained through inferior oblique myectomy, six were from primary IOOA, 6 from...