Original Article

Postoperative Convergence After Recovery From General Anesthesia in Exotropia Surgery

Sukgyu Ha, MD; Seung-Hyun Kim, MD, PhD

  • Journal of Pediatric Ophthalmology and Strabismus
  • September/October 2011 - Volume 48 · Issue 5: 305-310
  • DOI: 10.3928/01913913-20101018-01
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Abstract

Purpose:

To compare eye position at the end of surgery under general anesthesia with strabismic angles on postoperative day 1 in exotropia surgery.

Methods:

Seventy-eight patients between 3 and 58 years of age who had undergone surgery were divided into two groups (group A = 46 patients with bilateral rectus recession, group B = 32 patients with surgery that included medial rectus resection). Strabismic angles were measured at the end of surgery under general anesthesia using the Hirschberg test and the alternate prism cover test was performed on postoperative day 1.

Results:

Mean strabismic angle was 3.15 prism diopters (PD) under general anesthesia and −6.78 PD on postoperative day 1 in group A and −0.31 and −0.37 PD, respectively, in group B. Mean postoperative convergence was 9.93 PD in group A and 0.06 PD in group B, and the differences were statistically significant (P < .001).

Conclusion:

All patients receiving lateral rectus recession showed approximately 10 PD of convergence. Those who received surgery that included medial rectus resection showed much less convergence and a tendency to be the same as at the end of surgery on postoperative day 1.

AUTHORS

From the Department of Ophthalmology, Korea University College of Medicine, Seoul, South Korea.

The authors have no financial or proprietary interest in the materials presented herein.

Address correspondence to Seung-Hyun Kim, MD, PhD, Department of Ophthalmology, Korea University, Ansan Hospital, 516 Gojan-dong,Gyunggi-do,425-707, South Korea. E-mail: ansaneye@hanmail.net

Received: May 19, 2010
Accepted: September 01, 2010
Posted Online: October 21, 2010

doi: 10.3928/01913913-20101018-01

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