Postoperative diplopia test-repeatability and prediction of surgical outcomes.

Background: The postoperative diplopia test (PODT) is used to assess the risk of postoperative diplopia in older children and adults prior to strabismus surgery for nonfunctional reasons. The purpose of this study was to evaluate the test-retest and interobserver reliability of the PODT and its predictive value in assessing diplopia risk.

Methods: In the first phase of this study, the repeatability of the PODT method was prospectively assessed with two groups of patients (group 1, test-retest; group 2, interobserver).