Surgical outcome of unilateral recess-resect in convergence insufficiency-type intermittent exotropia: Comparison of two surgical formulae

Hye Jun Joo, Hyeon Jung Kim and Dong Gyu Choi

PLOS ONE, 2026, vol. 21, issue 3, 1-9

Abstract: Aim: We compared the surgical outcomes of monocular lateral rectus recession–medial rectus resection (RR) for convergence insufficiency-type intermittent exotropia (CI-type IXT) using two different formulas. Methods: A retrospective review of patients who underwent unilateral RR for CI-type IXT with at least 6 months follow-up was done. In group 1 (58 patients), RR was determined based on the average of distance and near exodeviation. In group 2 (80 patients), lateral rectus (LR) recession amount was based on the exodeviation at distance and medial rectus (MR) resection was done as the same amount of LR recession (symmetric RR). Results: Group 2 showed greater esodeviation at distance and near until postoperative 1 month, however, there was no significant difference in deviation angles between the two groups from 3 to 24 months. Both groups showed significant reduction in near-distance difference up to postoperative 24 months (p

Date: 2026
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0343366

DOI: 10.1371/journal.pone.0343366

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