case_images: PMC3263261_01
case_images: Sketch showing the dose distribution and injection sites of BTX. The potential likely site resulting in superior oblique paresis is marked by a highlighted star
case_images: IJO-60-77-g001.jpg
case_images: PMC3263261_01_IJO-60-77-g001.jpg
case_images: F1
case_images: His reports indicated that 48U BTX was administered [Fig. 1].
case_images: Hess chart showing small hypertropia in the right eye associated with ipsilateral superior oblique muscle underaction
case_images: IJO-60-77-g002.jpg
case_images: PMC3263261_01_IJO-60-77-g002.jpg
case_images: F2
case_images: Hess chart demonstrated mild weakness of the right superior oblique [Fig. 2].