Abstract
Purpose
To assess the effects of prism adaptation on the surgical outcomes of individuals with partially accommodative esotropia (PAET).
Methods
The medical records of 51 patients with PAET who were managed surgically at single referral center were retrospectively reviewed. Patients were divided into two groups according to prism adaptation. Data about sex, age, initial angle of deviation, final angle of deviation, stereoacuity, surgical dosage, and follow-up periods were collected. The main outcome of this study was motor outcomes at 12 months.
Results
Eighteen patients had a history of prism adaptation (PA group) and 33 did not (augmented surgery group, AS group). One year after surgery, 12 (66.7%) patients in the PA group and 21 (63.6%) in the AS group achieved an angle of deviation less than 5 PD. The surgical success rate in both groups did not significantly differ (p = 1). After the first prism adaptation test, six patients had an angle of deviation similar to the previous angle; however, 12 patients had larger angle, and consequently required additional prism (prism builder). Two (33.3%) patients who were prism non-builders had deviation less than 5 PD during the final visit. However, among the prism builders, four (57.1%) and five (100%) patients who had prism added once and more than once, respectively, had less than 5 PD deviation during the final visit (p = 0.03).
Conclusion
No significant differences were observed in terms of surgical outcomes between both groups. Nonetheless, in PA group, prism builders have better surgical outcomes than non-builders.
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Funding
This research was supported by the National Research Foundation of Korea (NRF) Grant funded by the Korean Government (MOE) (No. 2017R1D1A1B03032985). The grant had no role in the design or conduct of this research.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the Helsinki declaration and its later amendments or comparable ethical standards.
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For this type of study, formal consent is not required. The Institutional Review Board of Seoul National University Hospital in South Korea granted a waiver of consent for this retrospective chart review study.
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Jang, Y., Lee, HJ., Jung, J.H. et al. Effect of prism adaptation in patients with partially accommodative esotropia: clinical findings and surgical outcomes. Graefes Arch Clin Exp Ophthalmol 259, 223–229 (2021). https://doi.org/10.1007/s00417-020-04902-6
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DOI: https://doi.org/10.1007/s00417-020-04902-6