Horizontal Saccadic Velocity in Patients with Exotropia before and after Unilateral Resection and Recession Surgery.

Strabismus surgery normalized the patient's increased PV in the operated eye for abduction of horizontal saccade. Not only peripheral (extraocular muscle) but also central sensory-motor mechanisms may be involved in the changes in PV of horizontal saccades, both of which could result from the improvement of the primary eye position.