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. Author manuscript; available in PMC: 2007 Apr 2.
Published in final edited form as: Curr Opin Neurol. 2006 Feb;19(1):4–13. doi: 10.1097/01.wco.0000198100.87670.37

Figure 1. Axial magnetic resonance images (2 mm thickness, T1-weighted) of a right orbit taken at the level of the lens, fovea, and optic nerve (top), and simultaneously in a more inferior image plane along the path of the inferior rectus muscle (bottom), in abduction (left) and adduction (right).

Figure 1

Note the two segments in the inferior rectus path, with an inflection corresponding to the location of the inferior rectus pulley. For this 73° horizontal gaze shift, there was a corresponding 36° shift in inferior rectus muscle path anterior to the inflection at its pulley. IR, inferior rectus muscle; LR, lateral rectus muscle; MR, medial rectus muscle; ON, optic nerve. Reproduced with permission from [13••].