Korean J Ophthalmol.  2020 Apr;34(2):143-149. 10.3341/kjo.2019.0090.

Motor and Sensory Outcomes of Infantile Exotropia: A 10-Year Study (2008–2017)

• Rajavi Z
• Sabbaghi H
• Behradfar N
• Abdi S
• Bahraini R
• Kheiri B
• Sheibani K

• KMID: 2507404
• DOI: http://doi.org/10.3341/kjo.2019.0090

Abstract

Purpose
We aimed to determine the long-term motor and sensory outcomes of patients with infantile exotropia.
Methods
In this longitudinal retrospective (historical cohort) study, the records of 76 patients with infantile exotropia were Studied. Subjects with constant exotropia manifesting before the age of 1 year who were at least 5 years old at recruitment time between 2008 and 2017 were included.
Results
The medical records of 26 patients were excluded due to not participating in follow-up examinations or having incomplete records. In total, 54 infantile exotropic patients (51.9% male) with a mean age of 11.1 ± 6.8 years and follow-up of 4.99 ± 3.58 years were studied. Postoperative sensory outcomes (central stereopsis [<60 sec/arc], peripheral fusion [60–3,000 sec/arc], and non-stereopsis [>3,000 sec/arc]) were observed in 38.9%, 38.9%, and 21.2% of patients, respectively. In terms of postoperative motor outcomes, 69%, 24%, and 7% were achieved as orthophoria, residual exotropia, and consecutive esotropia, respectively. Patients with a higher surgical age (p = 0.022) and better visual acuity (p = 0.004) had significantly better sensory outcomes, while higher preoperative deviation resulted in more suppression (p = 0.039, rs = 0.218).
Conclusions
With rates of 69% for motor success and 78.8% for sensory success, surgical outcomes of infantile exotropic patients seems to be favorable. Further studies are recommended to verify our findings.

Keyword

Infantile exotropia; Motor; Sensory; Surgical outcome

Figure

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  Fig. 1 Postoperative motor outcomes in both far and near distances among patients with infantile exotropia (XT). OT = orthotropia; ET = esotropia.

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  Fig. 2 Postoperative sensory outcomes in patients with infantile exotropia (XT). ET = esotropia; OT = orthotropia.

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  Fig. 3 Postoperative combined motor and sensory outcomes in patients with infantile exotropia (XT). ET = esotropia; OT = orthotropia; ARC = abnormal retinal correspondence; Dev = deviation.

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