The Effect of Preoperative Occlusion Therapy on Long-term Outcome after Surgery for Early-onset Exotropia

Shin, Kwang Hoon; Kim, Iris Naheah; Paik, Hae Jung

doi:10.3341/kjo.2015.0168

Cited by 4 publications

(7 citation statements)

References 21 publications

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“…Our study showed that the surgical outcomes were favorable in patients who responded to preoperative part-time occlusion therapy, which is the most commonly used conservative treatment for IXT. Shin et al [24] have suggested that preoperative part-time occlusion therapy is a possible factor in improving long-term surgical outcomes. Our previous study reported improvements in the angle of deviation, control scores, and stereoacuity at distance and near after part-time occlusion therapy [29].…”

Section: Discussionmentioning

confidence: 99%

“…Numerous studies have suggested various factors that could be related to surgical success, including age at onset, timing of surgery [18][19][20], preoperative angle of deviation [16,20,21], visual acuity, type of surgery [21], type of exotropia [22], and stereopsis [23]. However, there is a paucity of information on the effectiveness of preoperative patching in maintaining successful outcomes after surgery for IXT [24,25].…”

Section: Introductionmentioning

confidence: 99%

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Factors Associated with Surgical Outcomes after Bilateral Lateral Rectus Recession in Children with Intermittent Exotropia

Yang,

Choi,

Kim

et al. 2024

JCM

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Backgroud: To analyze the factors associated with surgical outcomes after bilateral rectus recession (BLR) in children with intermittent exotropia (IXT). Methods: A retrospective study was performed on 125 patients who had all received preoperative patch treatment with a ≥1 year follow-up. The surgical outcomes were grouped as success (esodeviation ≤5 PD to exodeviation ≤10 PD) or failure (esodeviation >5 PD or exodeviation >10 PD) according to the angle of deviation at 1 year postoperatively. The patients’ magnitude of exodeviation, near and distant stereoacuity, and 3-mo patch responses were assessed. The factors associated with the surgical outcomes were determined using univariate and multivariate analyses. Results: Of the 125 patients, 102 (81.6%) and 23 (18.4%) were assigned to the success and failure groups, respectively. According to the univariate analysis, the absence of anisometropia, a smaller preoperative near exodeviation, a better near stereopsis, a smaller magnitude of deviation on day 1 postoperatively, and response to patching were significantly associated with surgical success for IXT after 1 year. In the multivariate analysis, distant esotropic deviation on day 1 postoperatively and response to patching were the factors affecting successful surgical outcomes. Conclusions: Esotropic distant deviation on day 1 postoperatively is a prognostic factor for favorable surgical outcomes. Preoperative patching could be a factor influencing surgical success in children with IXT.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Factors Associated with Surgical Outcomes after Bilateral Lateral Rectus Recession in Children with Intermittent Exotropia

Yang,

Choi,

Kim

et al. 2024

JCM

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“…Our study showed that surgical outcomes were favorable for patients who responded to preoperative part-time occlusion therapy, the most commonly used conservative treatment for IXT. Shin et al 21 have suggested that preoperative part-time occlusion therapy is a possible factor improving long-term surgical outcome. Our previous study has reported improvement in angle of deviation, control scores, and stereoacuity at distance and near after part-time occlusion therapy.…”

Section: Discussionmentioning

confidence: 99%

Factors Associated with Surgical Outcomes of Intermittent Exotropia in Children

Yang,

Choi,

Kim

et al. 2023

Preprint

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Purpose To evaluate factors associated with surgical outcomes of children with intermittent exotropia (IXT). Methods A retrospective study was performed for 125 patients who had undergone intermittent exotropia surgery with at least one year of follow up. Surgical outcomes were grouped as success (esophoria/tropia ≤ 5 prism diopers (PD) to exophoria/tropia ≤ 10 PD), failure (esophoria/tropia > 5PD or exophoria/tropia > 10PD) according to the angle of deviation at postoperative one year. We investigated subjects’ clinical and demographic factors including magnitude of exo-deviation, stereoacuity at near and distance, and response to patching at 3 months after patching. Factors associated with surgical outcomes were then determined through univariate and multivariate analyses. Results Of a total of 125 patients, 102 (81.6%) were assigned to the success group and 23 (18.4%) to the failure group. Univariate analysis revealed that absence of anisometropia, smaller preoperative near exodeviation, better stereopsis at near, magnitude of deviation at postoperative day 1, and good response to preoperative patching were significantly associated with surgical success for IXT at postoperative one year. In multivariate analysis, distant esotropic magnitude of deviation at postoperative day 1 was the only factor affecting successful surgical outcome. Conclusions Preoperative patching and small distant esotropia at postoperative day 1 are prognostic factors that could be altered in an effort to provide a successful surgical outcome.

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“…More than 90% of patients with infantile exotropia eventually need surgery, resulting in successful alignment and limited binocularity in most patients (4). Although many studies have studied factors associated with infantile exotropia's surgical results, there is a shortage of knowledge about preoperative deviation effects on postoperative outcomes (5)(6)(7)(8). There is no study to assess the impact of preoperative deviation on sensory function in infantile exotropia to the best of our knowledge.…”

Section: Introductionmentioning

confidence: 99%

“…In another research, postoperative results seem to be affected by misalignment duration rather than age at surgery(7). Shin et al reported that preoperative part-time occlusion treatment improved the surgical result of ear-ly-onset exotropia and postsurgical stereopsis(8).…”

mentioning

confidence: 96%

İnfantil Ekzotropyada Preoperatif Deviasyonun Cerrahi Başarı ve Duyusal Fonksiyon Üzerindene Etkisi

Öztürk

Gündüz

Gungor

et al. 2022

Harran Üniversitesi Tıp Fakültesi Dergisi

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Background: This study aims to assess the impact of preoperative deviation on surgical success and sensory function in infantile exotropia. Furthermore, to assess the effects of late surgical timing in these patients.Materials and Methods: This retrospective study evaluated 16 subjects with infantile exotropia that underwent surgical management between 2012 and 2018. Patients with deviation ≤ 50 prism diopters (PD) were added to Group 1, and Patients with deviation > 50 PD were added to Group 2 to assess the impact of preoperative deviation on surgical success and sensory function. The surgical success is descri-bed as ≤5 PD esotropia and ≤10 PD exotropia for patients. The Titmus stereopsis and Worth 4-Dot tests were used for sensory function assessment.Results: The average preoperative deviation was 50,63 ± 18,7 PD (20-90). The median age at the time of surgery was 73 (24-400) months. Surgical success was observed in 75% of the patients after the first surgery, and surgical success was observed in all patients after the second surgery. The sensory function was assessed in 11 testable patients (68.7%), of which 5 (45.4%) fusion was observed in the Worth 4-Point test, and 2 (18.1%) achieved measurable stereopsis. While the preoperative deviation had an effect on fusion, it had no effect on stereopsis and surgical success(p=0,015; p=0,45; p=0,77 respectively).Conclusions: The smaller preoperative deviation may be associated with a higher rate of sensorial fusion development. Furthermore, relatively high surgical success can be achieved with late surgical timing in these patients.Keywords: Exotropia, Preoperative deviation, Strabismus, Stereopsis

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The Effect of Preoperative Occlusion Therapy on Long-term Outcome after Surgery for Early-onset Exotropia

Cited by 4 publications

References 21 publications

Factors Associated with Surgical Outcomes after Bilateral Lateral Rectus Recession in Children with Intermittent Exotropia

Factors Associated with Surgical Outcomes after Bilateral Lateral Rectus Recession in Children with Intermittent Exotropia

Factors Associated with Surgical Outcomes of Intermittent Exotropia in Children

İnfantil Ekzotropyada Preoperatif Deviasyonun Cerrahi Başarı ve Duyusal Fonksiyon Üzerindene Etkisi

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