J Korean Ophthalmol Soc.  2006 Apr;47(4):600-606.

Comparison of Recession, Anterior Transposition, and Myectomy for Inferior Oblique Overaction

• Paik HJ
• Choi JS

Abstract

PURPOSE: To compare the clinical outcomes of recession, anterior transposition, and myectomy of overacting inferior oblique (IO) muscles.
METHODS
A total of 69 patients, (92 eyes) who underwent recession (38 eyes), anterior transposition (25 eyes), or myectomy (29 eyes) for overacting IO muscles in one or both eyes, were evaluated retrospectively with a follow-up period of 12.8 months (3~60 months).
RESULTS
We applied a grading system with a 5-point scale to the IO muscle. (0 to 4 for IO muscle overaction and 0 to -4 for IO underaction) The average preoperative IOOA was +2.13+/-0.94 in recession, +2.35+/-0.88 in anterior transposition, and +2.04+/-0.81 in myectomy. These were reduced to +2.04+/-0.81, +2.35+/-0.88, and -0.02+/-0.23 respectively. The average preoperative and postoperative hyperdeviation in primary gaze was 10.25+/-4.54PD to 2.37+/-0.98PD in recession, 9.02+/-4.53PD to 3.64+/-1.23PD in anterior transposition, and 7.25+/-3.21PD to 0.67+/-0.51PD in myectomy.
CONCLUSIONS
Recession, anterior transposition, and myectomy of the IO muscles were all effective in IOOA and hyperdeviation, and showed continuing drift towards orthotropia.

Keyword

Anterior transposition; Myectomy; Recession

MeSH Terms

Follow-Up Studies
Humans
Muscles
Retrospective Studies