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KMID : 0360220200610111322
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Journal of the Korean Ophthalmological Society
2020 Volume.61 No. 11 p.1322 ~ p.1330
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Postoperative Stereopsis Changes in Various Types of Strabismus Patients Over 10 Years of Age
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Kim Myung-Jin
Lew He-Len
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Abstract
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Purpose: To evaluate the postoperative stereopsis changes in strabismus patients over 10 years of age after surgical correction.
Methods: We reviewed, retrospectively, the medical records of 193 patients (99 men and 94 women) who underwent strabismus surgery from March 2002 to August 2019 at our hospital. Patients were classified into an exotropia group, an esotropia group, or a combined strabismus group (having horizontal and vertical strabismus simultaneously), according to their strabismus type.
These groups were further divided into three groups based on pre-operative stereopsis findings classified as poor (above 4,000 seconds [s] of arc), fair (between 4,000 to 100 s of arc), or good (below 100 s of arc). The stereopsis conditions before and after surgery were compared.
Results: Overall, the stereopsis of patients over 10 years of age who underwent surgery improved from 2.45 ± 0.69 logarcsec to 2.85 ± 0.58 logarcsec (p < 0.001) after surgery regardless of strabismus type. Stereopsis in exotropia patients was 2.33 ± 0.71 logarcsec before surgery and improved to 2.15 ± 0.56 logarcsec (p < 0.001) after surgery. Stereopsis in esotropia patients was 0.85 ± 0.58 logarcsec before surgery and 2.48 ± 0.11 logarcsec after surgery (p = 0.002). Stereopsis of combined strabismus patients was 2.44 ± 0.76 logarcsec before surgery versus 2.20 ± 0.54 logarcsec after surgery (p = 0.133). The degree of stereopsis improvement was highest for the esotropia, group followed by the combined strabismus, and exotropia groups.
Conclusions: Surgical correction of various types of strabismus may be helpful for binocular function in patients over 10 years of age.
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KEYWORD
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Adult strabismus, Stereopsis, Surgical correction
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