Journal List > J Korean Ophthalmol Soc > v.58(11) > 1010664

Kim and Kim: Clinical Features of Recurrent Intermittent Exotropia after Reoperation for Intermittent Exotropia



We reviewed the clinical features of intermittent exotropic patients who experienced recurrence after reoperation for intermittent exotropia, and identified the risk factors and prognoses.


The incidences, risk factors, treatment modalities, and prognoses of patients with recurrent exotropia were analyzed in 39 patients who underwent reoperation due to a relapse of exotropia after the first intermittent exotropia.


Among 39 patients, 24 (61.5%) had recurrent intermittent exotropia and 15 patients had no recurrence with intermittent exotropia. There was no difference in the recurrence of intermittent exotropia with age, deviation, refraction, anisometropia, outward discrepancy, and the vertical deviation before the reoperation. However, when the first operation was performed with bilateral lateral rectus recession and the reoperation was performed with bilateral medial rectus resection or unilateral medial rectus resection, intermittent exotropia tended to recur more than when the first operation was performed with one eye with lateral rectus recession and medial rectus resection, followed by reoperation with the other lateral rectus recession and medial rectus resection (p < 0.05). In addition, an esodeviation <10 prism diopters, orthophoria, or exotropia on the first postoperative day showed a tendency to relapse more than an esodeviation >10 prism diopters (p < 0.05).


The factors affecting recurrence after intermittent exotropia surgery involve surgical factors such as the surgical method and the postoperative overcorrection.

Figures and Tables

Table 1

Probable factors associated with onset of multiple recurred exotropia after reoperation of intermittent exotropia


Values are presented as mean ± SD or n (%) unless otherwise indicated.

op = operation; PD = prism diopter; HT = hypertropia; ET = esotropia; XT = exotropia; BLR = both lateral muscle recession; BMR = both medial muscle resection; UMR = unilateral medial muscle resection; RR = recession and resection.

*Chi-square test; Mann-Whitney test; Student T test; §Fischer exact test.

Table 2

Clinical features of patients who underwent intermittent exotropia surgery three times


op. = operation; PD = prism diopters; F = female; M = male; BMR = both medial muscle resection; BLR = both lateral muscle recession; LMR = left medial muscle resection; RMR = right medial muscle resection.

*A negative value indicates esodeviation.


This study was presented as a narration at the 117th Annual Meeting of the Korean Ophthalmological Society 2017.

This study was supported by research fund from Chosun University, 2016.

Conflicts of Interest The authors have no conflicts to disclose.


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