A flowchart showing study participants for final analysis.

<p>A flowchart showing study participants for final analysis.</p

Review of population-based studies of risk factors associated with esodeviation and exodeviation in children.

<p>Review of population-based studies of risk factors associated with esodeviation and exodeviation in children.</p

Clinical characteristics of subjects for association analysis (n = 5,935).

<p>Clinical characteristics of subjects for association analysis (n = 5,935).</p

Overcorrection rates (%) in groups A and B.

<p>Overcorrection rates (%) in groups A and B.</p

Postoperative angle of exodeviation (PD) at distance.

<p>Postoperative angle of exodeviation (PD) at distance.</p

Demographic data of patients in groups A and B.

<p>Demographic data of patients in groups A and B.</p

Surgical success rates for horizontal alignments (%) in groups A and B.

<p>Surgical success rates for horizontal alignments (%) in groups A and B.</p

Effect of combining inferior oblique muscle weakening procedures with exotropia surgery on the surgical correction of exotropia

<div><p>Purpose</p><p>To determine whether the inferior oblique (IO) muscle weakening procedure combined with exotropia surgery affects the surgical correction of exotropia.</p><p>Design</p><p>Institutional, retrospective study.</p><p>Methods</p><p>We retrospectively reviewed the medical records of 310 patients who had undergone exotropia-correcting surgery combined with IO weakening (group A, 64 patients) or without IO weakening (group B, 246) with a postoperative follow-up of 6 months or more. The main outcome measures were the postoperative mean angle of horizontal deviation, the success rate, and the overcorrection rate. Surgical success was defined as an alignment between 10 prism diopters (PD) of exodeviation and 5 PD of esodeviation.</p><p>Results</p><p>The postoperative mean angles of exodeviation, throughout the follow-up period, did not significantly differ between the groups. Although the surgical success rate was higher in group B at postoperative 1 month (p = 0.035), there was no statistical difference between the 2 groups from postoperative 6 months.: The final success rates were 56.3 and 51.6% (p = 0.509). The overcorrection rate was significantly higher in group A at postoperative 1, 6 and 24 months (p = 0.017, p = 0.028, p = 0.030, respectively); however, at the final follow-up, there was no overcorrection in either group.</p><p>Conclusion</p><p>The overcorrection rate was higher in group A until postoperative 2 years, even though the mean angles of exodeviation and the success rates did not significantly differ between the 2 groups. Surgeons should be mindful of overcorrection when planning exotropia surgery combined with the IO weakening procedure.</p></div

Outcomes of exotropia surgery combined with unilateral or bilateral IO weakening procedure in group A (n = 64) at postoperative 2 years.

<p>Outcomes of exotropia surgery combined with unilateral or bilateral IO weakening procedure in group A (n = 64) at postoperative 2 years.</p

Surgical procedures for intermittent exotropia.

<p>Surgical procedures for intermittent exotropia.</p