Consecutive Esotropia after Surgery for Intermittent Exotropia

ABSTRACT

We evaluated retrospectively the clinical characteristics of 10 esotropic patients following surgery for intermittent exotropia. The nonoperative group(NG) comprised of 5 patients with esodeviation under 16PD and the operative group(OG) of 5 patients with the angle of 18PD or more. The associated condition was one case of myopic anisometropia in the NG. In the OG, there were inferior oblique overactions in three cases and high myopia or amblyopia in two cases. The mean esodeviation at early stage was 11.8PD and 7.8PD at final stage in the NG. 4 of 5 patients showed good alignment within 10PD. In the OG, the mean early esodeviation and final deviation were 11.6PD and 19.2PD respectively. Three patients showed orthotropia in the early stage, and 2 patients revealed orthotropia in the final stage. There were no significant differences in achieving fusion and steropsis between the two groups. The results suggest that the degree of deviation and associated ocular conditions will influence the choice of therapy. We think that there will be no problem in the recovery of binocular visual function after surgery for consecutive esotropia.