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Comparison of effective group and refractory group to alternative patch treatment in overcorrected intermittent exotropia
Author(s) -
Lee S.J.,
Kim J.Y.,
Park J.M.
Publication year - 2015
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2015.0432
Subject(s) - intermittent exotropia , refractory (planetary science) , medicine , surgery , exotropia , group b , ophthalmology , strabismus , physics , astrobiology
Purpose To compare effective group with refractory group to alternative patching alone in patients with overcorrection after surgery for intermittent exotropia ( IXT ). Methods Medical records of 53 patients with overcorrection after surgery for IXT were reviewed. Alternative patching was prescribed from postoperative day 1 for patients who had esodeviation ≥18 PD , or esodeviation ≥10 PD after postoperative day 2 weeks. Refractory group was defined as remaining esodeviation ≥10 PD at least 3 months of treatment. Presumed risk factors were investigated. Results Of total 53 patients, 30 patients (56.6%) were in effective group and 23 patients (43.4%) were in refractory group. Significant differences were found in gender (Female, Refractory 78.3% vs Effective 46.7%) and preoperative exodeviation at distance (Refractory 27.6 ± 6.5 PD vs Effective 25.8 ± 4.5 PD ). Mean starting time of alternative patching in refractory group was later (22.4 ± 25.4 days) than in effective group (10.2 ± 9.6 days). The mean angle of postoperative maximal esodeviation at near was larger in refractory group (−20.0 ± 6.9 PD vs −14.7 ± 8.5 PD ). The mean time of postoperative maximal esodeviation was later in refractory group than in effective group (at distance: 2.3 ± 2.1 months vs 0.3 ± 0.2 months, P < 0.01, at near: 3.4 ± 4.1 months vs 0.4 ± 0.3 months. Conclusions Female, large preoperative exodeviation at distance were predisposing factors for refractory to alternative patch treatment in overcorrected IXT . Prescription of alternative patching was late in refractory group. The mean angle of postoperative maximal esodeviation was larger and the mean time of postoperative maximal esodeviation was later in refractory group. Postoperative changes in angle of deviation was significantly larger in refractory group since 1 month.