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Preop stability appears to have little impact on stability after surgery for esotropia
J Pediatr Ophthalmol. 2009;13(4):335-338.
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Preoperative alignment stability seemed to have a minimal effect on alignment after surgery for esotropia, according to a study by the Pediatric Eye Disease Investigator Group.
"Nevertheless, our finding should be interpreted with caution due to small sample size," the PEDIG authors said.
The observational study included 167 children younger than 6 years who had surgery after undergoing preoperative alignment stability measurements at baseline and every 6 weeks for 18 weeks. Sixty-eight children had infantile esotropia, and 99 children had acquired esotropia.
The authors graded preoperative alignment as stable, uncertain or unstable.
Among children with infantile esotropia, median 6-week postoperative deviation was 2Δ for children with stable preoperative alignment, 6Δ for children with uncertain preoperative alignment and 2Δ for children with unstable preoperative alignment.
In the same group, median 6-month postoperative deviation was 1Δ for children with stable alignment, 9Δ for children with uncertain stability and 1Δ for children with unstable alignment.
Among children with acquired esotropia, median 6-week postoperative deviation was 6Δ for children with stable preoperative alignment, 4Δ for children with uncertain stability and 4Δ for children with unstable alignment.
Median 6-month postoperative deviation was 8Δ for children with stable alignment, 4Δ for children with uncertain alignment and 6Δ for children with unstable alignment, the authors reported.