Optic chiasm: Visualizing the visual pathway

Abstract

Bilateral optic nerve confluence at the optic chiasm, anterior cerebral arteries, and anterior communicating artery during endoscopic endonasal resection of a craniopharyngioma compressing chiasm [Fig. 1]. Preoperative visual acuity was 1.4 logMAR units in right (OD) and 0.3 in the left eye with macular branch retinal vein occlusion in OD. Surgery performed using an image-guided protocol with intraoperative monitoring of visual evoked potentials as described by Miyagishima et al.[1] Complete tumor removal was achieved. There was no deterioration of visual function postoperatively.Figure 1: Intraoperative image of the bilateral optic nerves, their confluence at the optic chiasm and the anterior cerebral arteries along with the anterior communicating artery during endoscopic endonasal resection of a craniopharyngiomaswWe highlight the importance of a multidisciplinary approach and application of advanced intraoperative technology in the management of lesions affecting the visual pathway. 2.1 Financial support and sponsorship Nil. 2.2 Conflicts of interest There are no conflicts of interest.