March 2012
Volume 53, Issue 14
Free
ARVO Annual Meeting Abstract  |   March 2012
Relationship of Control Grade, Stereoacuity and Surgical Success in Basic Intermittent Exotropia
Author Affiliations & Notes
  • Yun Keun Cho
    Ophthalmology, Dongsan Medical Center, Keimyung University, Daegu, Republic of Korea
  • Se-Youp Lee Lee
    Ophthalmology, Dongsan Medical Center, Keimyung University, Daegu, Republic of Korea
  • Footnotes
    Commercial Relationships  Yun Keun Cho, None; Se-Youp Lee Lee, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science March 2012, Vol.53, 1768. doi:
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      Yun Keun Cho, Se-Youp Lee Lee; Relationship of Control Grade, Stereoacuity and Surgical Success in Basic Intermittent Exotropia. Invest. Ophthalmol. Vis. Sci. 2012;53(14):1768.

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Abstract

Purpose: : This study was conducted to identify relationship of control grade, stereoacuity and surgical success in basic intermittent exotropia.

Methods: : This retrospective study comprised forty four basic intermittent exotropia patients that underwent strabismus surgery and completed at least six months of follow-up. Forty four patients were divided into three subgroups according to their control grade and evaluated for near and distance stereoacuity, and identify relationship of control grade and surgical success.

Results: : Group 1 (good contol) was consisted of 12 patients, group 2 (fair control) 17 patients, and group 3 (poor control) 28 patients. Mean near stereoacuity measured by Titmus test was 57.5 seconds of arc (seconds) in group 1, 76.47 seconds in group 2, 149.33 seconds in group 3(p<0.05). Mean distance stereoacuity measured by Mentor B-BAT II-SG videoacuity tester was 141.67 seconds in group 1, 154.71 seconds in group 2, 272 seconds in group 3(p<0.05). Surgical success is defined as the ocular alignment within 10PD in primary position at the last visit. Eleven patients (97%) from group 1, 13 (76.4%) from group 2, and 11 (73.3%) from group 3 obtained surgical success (p>0.05).

Conclusions: : In comparing the three groups simultaneously, it was found that good control grade resulted in good stereoacuity in both near and distant stereoacuity. But, the surgical success rate according to preoperative control grade was not satistically significant.

Keywords: binocular vision/stereopsis • esotropia and exotropia • clinical (human) or epidemiologic studies: outcomes/complications 
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