J Korean Ophthalmol Soc.  2008 Jul;49(7):1120-1126. 10.3341/jkos.2008.49.7.1120.

The Surgical Outcomes of Exotropia in Children with a Short Preoperative Work-Up

• Seo JH
• Choi MY

• KMID: 1476967
• DOI: http://doi.org/10.3341/jkos.2008.49.7.1120

Abstract

PURPOSE: We performed this study to evaluate the surgical outcome of exotropia in children younger than 10 years with a short, preoperative work-up.
METHODS
The study subjects included 18 children who had received surgery for exotropia with preoperative work-ups less than 3 months. They were followed for more than 3 months after surgery. The age, symptoms, visual acuity, refractive errors, binocularity at surgery, and surgical results were analyzed.
RESULTS
The average age of the subjects was 9.6 years old, and the preoperative angle of deviation was 25 prism diopters (PD). Most of them (89%) showed intermittent exotropia and myopia. None of them had amblyopia or anisometropia. Of the 18 patients, 16 (89%) were able to fuse at near and distance, and 14 patients showed good stereopsis equal to or less than 200 sec of arc by the Titmus test. The surgery was performed on the basis of the maximum angle, and inferior oblique myectomy was simultaneously performed in three patients. At the postoperative 15 months, 13 (72%) of the 18 patients showed a deviated angle less than 10PD, and exotropia recurred in 5 (28%) patients.
CONCLUSIONS
The preoperative visual acuity and binocularity were relatively good, and the surgical outcome was also good in exotropic children younger than 10 years with a short preoperative work-up.

Keyword

Exotropia; Surgical outcome; Short preoperative work up

MeSH Terms

Amblyopia
Anisometropia
Child
Depth Perception
Exotropia
Humans
Myopia
Refractive Errors
Telescopes
Visual Acuity

Figure

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  Figure 1. Preoperative and postoperative angle of deviation. Preop = preoperative; PD=Prism diopter; - =Esotropia; += Exotropia.

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  Figure 2. The comparison of preoperative and postoperative Titmus stereoacuity test (seconds of arc) gross=gross stereopsis; no=no stereopsis.

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  Figure 3. The comparison of preoperative and postoperative Worth 4-dot test; F&N=fusion at far and near; N=fusion at only near; None=no fusion at far or near.

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