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Surgical Correction for Pediatric Epiblepharon and Trichiasis
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Inferior oblique belly transposition for V pattern strabismus.

Mingyu Si1, Shiqiang Yang2, David Robbins Tien3

  • 1Department of Ophthalmology, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, Jiangsu, China.

Strabismus
|December 19, 2019
PubMed
Summary
This summary is machine-generated.

Inferior oblique muscle belly transposition (IOMBT) effectively resolved V pattern strabismus with upshoot in adduction in 13 patients. This surgical technique successfully corrected deviations without adverse effects.

Keywords:
Superior oblique palsyV pattern strabismusinferior oblique belly transposition (IOMBT)inferior oblique overaction

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Area of Science:

  • Ophthalmology
  • Strabismus Surgery

Background:

  • Inferior oblique muscle belly transposition (IOMBT) is known to weaken inferior oblique overaction and correct hypertropia.
  • V pattern strabismus with upshoot in adduction presents a surgical challenge.

Purpose of the Study:

  • To evaluate the efficacy of IOMBT in treating V pattern strabismus with upshoot in adduction.
  • To assess the impact of IOMBT on V pattern magnitude and upshoot severity.

Main Methods:

  • Retrospective review of 13 patients with V pattern strabismus and upshoot in adduction who underwent bilateral IOMBT.
  • Inclusion criteria: V pattern 15-25 pd, upshoot +1 to +3, minimal primary gaze deviation.
  • Measurements included pre- and postoperative V pattern angle and upshoot grade.

Main Results:

  • Complete resolution of V pattern was achieved in all 13 patients.
  • V pattern decreased from a mean of 18.92 pd to 3.46 pd.
  • Mean upshoot grade reduced from 1.92 to 0.12, with no consecutive A pattern or depression in adduction.

Conclusions:

  • IOMBT is a successful surgical option for V pattern strabismus with mild to moderate upshoot in adduction.
  • This technique effectively eliminates V patterns and upshoots, offering a valuable addition to strabismus surgical options.