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Early surgery for infantile esotropia: results and influence of age upon results
Insights
Early corrective surgery for infantile esotropia improves eye alignment and fusion. Performing surgery before 12 months of age reduces the risk of amblyopia and other complications.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Strabismus Surgery
Background:
- Infantile esotropia is a common form of strabismus in infants.
- Early surgical intervention is crucial for optimal visual development.
Purpose of the Study:
- To investigate the relationship between the timing of corrective surgery for infantile esotropia and visual outcomes.
- To determine the prevalence of fusion, stereopsis, and associated conditions like dissociated vertical deviation (DVD), inferior oblique overaction, and amblyopia in relation to surgical timing.
Main Methods:
- Retrospective analysis of 105 patients with infantile esotropia.
- Patients underwent corrective surgery between 5 and 24 months of age.
- Outcomes assessed included eye alignment, fusion, stereopsis, DVD, inferior oblique overaction, and amblyopia.
Main Results:
- Successful eye alignment (within 10 prism diopters of orthophoria) was associated with higher rates of fusion and stereopsis and lower rates of DVD.
- Fusion was most prevalent (92%) in patients aligned by 9 months of age.
- Surgery before 12 months of age correlated with lower incidences of inferior oblique overaction and amblyopia.
- Complex interrelationships were observed between latent nystagmus, DVD, inferior oblique overaction, and amblyopia.
Conclusions:
- Early surgical correction of infantile esotropia, particularly before 12 months, is associated with better visual outcomes, including fusion and stereopsis.
- Timely intervention can mitigate the risk of developing amblyopia and other strabismic complications.
- The findings highlight the importance of age at surgery in managing infantile esotropia.
Abstract:
In 105 patients with infantile esotropia who initially underwent corrective surgery between 5 and 24 months of age successful alignment of the eyes (to within 10 prism diopters of orthophoria) was associated with a higher prevalence of fusion and stereopsis and a lower prevalence of dissociated vertical deviation (DVD). Fusion was most frequent in the patients whose eyes were successfully aligned by 9 months of age, occurring in 92%. Inferior oblique overaction and amblyopia were less frequent when the initial operation had been performed before 12 months of age. Latent nystagmus, DVD, inferior oblique overaction and amblyopia were interrelated in a complex fashion.