Preoperative and postoperative data of the patients who underwent the muscle union procedure for paralytic strabismus.

<p>SD = standard deviation; PD = prism diopters.</p><p>*Successful alignment was defined as a deviation ≤10 prism diopters.</p><p>^†Under-correction was defined as a residual deviation more than 10 PD.</p><p>^‡Overcorrection was defined as an overcorrected deviation more than 10 PD.</p><p>^aChange in horizontal deviation between postoperative deviation and preoperative deviation.</p><p>^bChange in the limitation of the horizontal paralytic extraocular muscle between postoperative and preoperative deviation.</p><p>Voluntary ductions were performed using a 4-point scale ranging from 0 to -4: 0 = patient has full movement in the affected eye; -2 = patient is unable to move the affected eye past the midline; -3 = patient is unable to move the affected eye to the midline; and -4 = patient has no adducting movement in the affected eye.</p><p>Preoperative and postoperative data of the patients who underwent the muscle union procedure for paralytic strabismus.