EFFECTS OF STRABISMUS SURGERY ON REFRACTION IN CHILDREN

We assessed 115 eyes of 59 children with esotropia 2-3 months postoper atively to evaluate the effects of strabismus surgery on refraction. T hree variables were measured: spherical equivalent, and cylinder power and axis. The mean changes in spherical equivalent were non-significa nt. The axis of postoperative astigmatism moved towards 'with-the-rule ', thus improving refraction. The amount of recession and the conseque nt changes in cylinder power were inversely related. The results showe d a significant change in cylinder axis after recession of the inferio r oblique. Recession-tucking procedures led to the largest changes in cylinder power.