Improved assessment of control in intermittent exotropia using multiple measures

Sarah R. Hatt, Laura Liebermann, David A. Leske, Brian G. Mohney, Jonathan M Holmes

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Purpose: To develop and validate an improved measure of control in intermittent exotropia (XT). Design: Prospective, noninterventional case series. Methods: Twelve children with intermittent XT were evaluated during 4 sessions (2 hours apart) over a day, on 2 separate days (8 sessions per child). Control was standardized using a scoring system and quantified 3 times during each examination. Overall control for a day was calculated as the mean of all 12 measures. Single measures of control and the mean of 2 (double) and 3 (triple) measures over the examination were compared with the respective day mean, and first-day measures were compared to the second-day mean. Results: At distance, 17% (49/287, 95% confidence interval [CI] 13% to 22%) of single measures differed from the day mean, whereas only 8% (16/191, 95 CI 5% to 13%) of double measures and 5% (5/95, 95% CI 2% to 12%) of triple measures differed. Comparing day 1 measures to overall mean for day 2, 17% (24/143, 95% CI 11% to 24%) of single measures and 17% (22/130, 95% CI 11% to 24%) of double measures differed by more than 1 level, whereas 11% (5/47, 95% CI 4% to 23%) of triple measures differed. Conclusions: The mean of 3 assessments of control during a clinic examination better represents overall control than a single measure.

Original languageEnglish (US)
Pages (from-to)872-876
Number of pages5
JournalAmerican Journal of Ophthalmology
Volume152
Issue number5
DOIs
StatePublished - Nov 2011

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Exotropia
Confidence Intervals

ASJC Scopus subject areas

  • Ophthalmology

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Improved assessment of control in intermittent exotropia using multiple measures. / Hatt, Sarah R.; Liebermann, Laura; Leske, David A.; Mohney, Brian G.; Holmes, Jonathan M.

In: American Journal of Ophthalmology, Vol. 152, No. 5, 11.2011, p. 872-876.

Research output: Contribution to journalArticle

Hatt, Sarah R. ; Liebermann, Laura ; Leske, David A. ; Mohney, Brian G. ; Holmes, Jonathan M. / Improved assessment of control in intermittent exotropia using multiple measures. In: American Journal of Ophthalmology. 2011 ; Vol. 152, No. 5. pp. 872-876.
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