To determine if there is better long-term motor alignment or sensory outcome 5 years after surgery for infantile esotropia for patients who exhibit any of three categories of alignment 6 months after surgery: orthotropia, up to 8 prism diopters (Δ) of esotropia, or up to 8Δ of exotropia.
A 15-year prospective study with 5-year outcome determination was conducted in surgically treated esotropic infants.
Of 118 patients in the study group, 24 had orthotropia, 84 had up to 8Δ of esotropia, and 10 had up to 8Δ of exotropia 6 months after surgery. The patients who were orthotropic 6 months after surgery were more likely to show good alignment and better binocularity 5 years after surgery than were patients with small-angle esotropia or small-angle exotropia. Patients who were esotropic 6 months after surgery were more likely to have good alignment and binocularity 5 years after surgery than were patients who were exotropic 6 months after surgery.
Small-angle esotropia, small-angle exotropia, and orthotropia are not equally desirable outcomes after surgery for infantile esotropia. Orthotropia is a decidedly better outcome than a small-angle esotropia, which is preferable to a small-angle exotropia.
Kushner BJ, Fisher M. Is Alignment Within 8 Prism Diopters of Orthotropia a Successful Outcome for Infantile Esotropia Surgery?. Arch Ophthalmol. 1996;114(2):176–180. doi:10.1001/archopht.1996.01100130170010
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