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Harada-Ito Procedure
Purpose
- Strengthen Incylotorsion effect of the Superior Oblique without affecting vertical alignment
- Most useful with a functioning superior oblique and excyclotorsion present
- Can improve 10-15 degrees of incyclotorsion
Description
Transpose the anterior 1/3 to 1/2 of the superior oblique tendon fibers to the superior border of the lateral rectus muscle. Tightening only the radially oriented fibers will avoid any change in vertical deviation but there may be an exoshift in down-gaze.
References
Books
Harada-Ito Procedure In Clinical Strabismus Management, Principles and Surgical Techniques. pages 469-473 by Rosenbaum and Santiago, 1999
Harada-Ito Procedure in Strabimus Surgery and its Complications. pages 122-124. Coats and Olitsky, 2007