Figure 5
Representative clinical findings of a case with good visual outcome (case 1). A 63-year-old woman with pituitary adenoma with optic nerve bending in the left eye. Preoperative and postoperative best-corrected visual acuities (BCVAs) were − 0.08 and − 0.08 in the right eye and 0.82 and − 0.08 in the left eye logarithm of the minimum angle of resolution units, respectively. (a) Preoperative sagittal T2-weighted magnetic resonance images. The optic nerve–canal bending angle (ONCBA) was formed by the optic nerve (nerve indicated by yellow arrowheads) in the optic canal and the optic nerve in the intracranial subarachnoid space at the optic canal’s exit (angle indicated by yellow dotted lines). White dotted lines indicate a tumor. The ONCBAs of this case were 31° in the right eye and 76° in the left eye. Therefore, the left eye is the one with optic nerve bending. (b, c) Color fundus photograph showing the normal appearance at preoperative visit (B, right eye; C, left eye). (d, e) Ganglion cell layer (GCL) + inner plexiform layer (IPL) deviation map showing the expansion from the parafovea to the periphery of the red area indicates the decrease of GCL + IPL thickness and outside normal limits. GCL + IPL deviation map and sector graph of the right eye (left 2 panels) and left eye (right 2 panels) show a decrease in the macular GCL + IPL thickness, especially from nasal to superior sectors in the left eye. A slight decrease in postoperative GCL + IPL thickness is observed in the left eye (d, preoperative; e, postoperative visit).
