Post-operative strabismus control and motor alignment for basic intermittent exotropia
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Fiona Chew Lee Min. Department of Ophthalmology, Singapore National Eye Centre, 11, Third Hospital Avenue 168751, Singapore. sabrefmin@gmail.com

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    Abstract:

    AIM: To assess strabismus control and motor ocular alignment for basic exotropia surgery at 5y follow-up. METHODS: The medical records of 80 consecutive patients aged less than 17 years of age, who underwent surgery for basic exotropia by a single surgeon between years 2000 to 2009 and completed a minimum of 5y follow-up post-operatively were reviewed. Pre- and post-operative characteristics were documented at 1wk, 6mo, 1, 3 and 5y follow-up. Subjects at 5-year follow-up were assigned to the success group if they had a post-operative angle of deviation within 10 prism diopters of exotropia or within 5 prism diopters of esotropia for distance on prism cover test, and had moderate to good strabismus control. The remaining subjects were assigned to the failure group. RESULTS: Post-operative surgical success at one week was 75%, which decreased to 41% at 5y follow-up. The success group was noted to have more patching pre-operatively (P=0.003). The duration of patching a day (P=0.020) and total duration of patching pre-operatively (P=0.030) was higher in the success group. Surgical success at 1y (P=0.004) and 3y (P=0.002) were associated with higher surgical success at 5y follow-up. CONCLUSION: Post-operative motor alignment and strabismus control for basic exotropia surgery at 1y and beyond is associated with higher exotropia surgery success at 5-year follow-up. There is an association between pre-operative patching and 5-year surgical success of basic intermittent exotropia surgery.

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Fiona Chew Lee Min, Bhambi Uellyn Gesite-de Leon, Boon Long Quah. Post-operative strabismus control and motor alignment for basic intermittent exotropia. Int J Ophthalmol, 2016,9(7):1011-1015

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Publication History
  • Received:June 01,2015
  • Revised:August 10,2015
  • Adopted:
  • Online: July 12,2016
  • Published: