PMC4821130_01
Preoperative nine gaze photograph shows large exotropia and limitation of adduction in the both eye
IJO-64-91-g001.jpg
PMC4821130_01_IJO-64-91-g001.jpg
F1
The initial ophthalmologic evaluation showed a 12-prism diopter (PD) exotropia, and ocular motility evaluation revealed limitation of adduction without vertical limitation [Fig. 1].
Initial computed tomography reveals both lateral rectus muscle thickening. (a) Axial view. (b) Coronal view
IJO-64-91-g002.jpg
PMC4821130_01_IJO-64-91-g002.jpg
F2
Orbit computed tomography showed bilateral thickening of the lateral rectus muscles [Fig. 2].
H and E staining shows dense fibrous connective tissue without viable muscular cells
IJO-64-91-g003.jpg
PMC4821130_01_IJO-64-91-g003.jpg
F3
Muscle biopsy revealed dense fibrous connective tissue without viable muscular cells [Fig. 3].