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Sensory results following treatment of infantile esotropia
Insights
Early surgery for infantile esotropia can correct eye alignment, but achieving lasting binocular vision is challenging. Many patients develop other conditions like nystagmus, hindering fusion development.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Strabismus Surgery
Background:
- Infantile esotropia is a common form of strabismus in young children.
- Early surgical intervention is often recommended to correct eye alignment.
Purpose of the Study:
- To evaluate the long-term outcomes of early surgical treatment for infantile esotropia.
- To assess the development and maintenance of binocular function after surgery.
Main Methods:
- Retrospective analysis of 40 patients with infantile esotropia.
- Initial surgery performed before 2 years, 4 months of age.
- Follow-up duration of 5 to 14 years.
Main Results:
- Surgical correction achieved alignment within 10 prism diopters of orthotropia in 34 patients.
- Stable alignment was maintained in 26 patients.
- Only 6 of the 26 with stable alignment demonstrated binocular function via troposcopic evaluation and Wirt stereo test.
Conclusions:
- While early surgery effectively corrects infantile esotropia alignment, achieving sustained binocular function remains a significant challenge.
- Associated conditions such as dissociated vertical divergence, nystagmus, and amblyopia may impede the development of fusion.
- Further research is needed to understand and improve outcomes for binocular vision in treated infantile esotropia.
Abstract:
Forty patients with infantile esotropia were treated by one ophthalmologist and followed up for 5 to 14 years. In all cases the initial surgery was performed by the age of 2 years, 4 months. The angle of deviation was reduced to within 10 prism diopters of orthotropia in 34 patients, and in 26 of them the reduction was maintained. However, only 6 of the 26 with a stable reduction showed evidence of binocular function by both troposcopic evaluation and the Wirt stereo test. Dissociated vertical divergence, nystagmus and amblyopia were much more common among the patients in whom fusion did not develop and may be the cause of this failure.