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Traditional and reduced recession surgical dosage for bilateral lateral rectus recession for infantile exotropia
1Department of Ophthalmology, Korea University College of Medicine, Seoul, Korea.
Insights
Reducing lateral rectus recession by 1-2 mm for infantile exotropia did not affect 1-year alignment outcomes. This surgical approach may decrease overcorrection risk in this sensitive population.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Strabismus Surgery
Background:
- Infantile exotropia requires precise surgical intervention.
- Determining the optimal surgical dose is crucial for effective treatment.
- Previous studies lack consensus on recession adjustments.
Purpose of the Study:
- To evaluate the impact of reduced lateral rectus recession on infantile exotropia outcomes.
- To compare the efficacy of traditional versus reduced recession surgical doses.
- To assess the risk of overcorrection with modified recession amounts.
Main Methods:
- Retrospective analysis of 44 children with infantile exotropia undergoing bilateral lateral rectus recession.
- Comparison between traditional recession and a 1-2 mm reduced recession group.
- One-year follow-up to assess ocular alignment and surgical outcomes.
Main Results:
- No statistically significant difference in ocular alignment at 1-year follow-up between groups.
- Early postoperative period showed a trend towards less esodeviation in the reduced recession group (p=0.074).
- Reduced recession (1-2 mm) did not compromise long-term alignment in infantile exotropia.
Conclusions:
- A 1-2 mm reduction in lateral rectus recession is a safe and effective surgical option for infantile exotropia.
- Reducing surgical recession minimizes the risk of overcorrection in this patient group.
- Surgical outcomes for infantile exotropia are not adversely affected by conservative recession adjustments.
Background:
To investigate the optimal surgical dose for treating infantile exotropia.
Methods:
In this retrospective study, clinical records of 44 children who had undergone bilateral lateral rectus recessions before 4 years of age for an exotropia present before 12 months of age were studied. Children had 1 year of follow-up after surgery. Patients were separated into those who had traditional surgery and those who received a reduced recession of their lateral recti.
Results:
The traditional surgery group comprised 36% of the patients and the reduced recession group, 1-2 mm reduction in the recession, comprised 64% of the study group. There was borderline significance (p=0.074) when the postoperative angle of deviation was compared in the early postoperative period. The traditional group had a mean deviation of 5.25 prism dioptres (PD) of esodeviation compared with the reduced recession group having a 2.91 esodeviation. There was no statistical difference at the 1-year evaluation of the alignment. The traditional group had a mean exodeviation of 2.63 PD compared with the reduced recession group having a 2.91 PD exodeviation.
Conclusions:
Postoperative surgical outcome was not affected by a reduction in the amount of recession by 1-2 mm from traditional tables used for treatment of exotropia. Reducing the recession of the lateral recti reduces the risk of overcorrection in this sensory labile population.
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