Eye movement revealed limitation of superiorrectus, lateral rectus, and inferior oblique muscles of left eye.
眼球运动显示左眼上直肌，外直肌，及下斜肌功能受损。
2
Conclusion The muscle union of lateral, superior and inferior rectus make eyeball move abductively.
结论外直肌与上、下直肌联合术可使眼球有一定的外展功能。
3
Conclusions Myositis was one of the uncommon clinical subtypes of IOIP, Superiorrectus was the most involved muscle, followed by lateral, medial and inferior rectus.