ABSTRACT
PURPOSE : We compared the Titmus© stereoacuity with the duration of misalignment and the age of alignment for a group of patients who were surgically aligned by 24 months of age.
SUBJECTS & METHODS : The age of alignment and duration of misalignment was correlated with the percentage of patients with stereopsis and quality of the stereoacuity result as determined by the Titmus© vectograph overlay.
RESULTS : Patients aligned by 6 or 12 months of age or within 6 or 12 months of duration of misalignment did not differ in percentage with stereopsis. However, patients aligned after 12 months of age did show a decrease percentage with stereopsis (p<0.05, power 0.8). The quality of the stereoacuity that was established was similar for those aligned by 6 or 12 months (p>0.05, power 0.8). The quality of stereoacuity however, was decreased for patients with duration of misalignment greater than 12 months (p<0.001, power 0.8).
CONCLUSIONS : Alignment within 1 year of age or within 12 months of misalignment favorably affects the percentage of patients who develop stereopsis and the quality of that binocularity in congenital esotropia.
