|Year : 2020 | Volume
| Issue : 11 | Page : 2537
Optic chiasm: Visualizing the visual pathway
Apinderpreet Singh1, Rajesh Chhabra1, Aditi Mehta2, Ramandeep Singh Virk3
1 Department of Neurosurgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
2 Department of Ophthalmology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
3 Department of Otolaryngology and Head and Neck Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
|Date of Web Publication||26-Oct-2020|
Prof. Ramandeep Singh Virk
Department of Otolaryngology, Post Graduate Institute of Medical Education and Research, Chandigarh
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Singh A, Chhabra R, Mehta A, Virk RS. Optic chiasm: Visualizing the visual pathway. Indian J Ophthalmol 2020;68:2537
Bilateral optic nerve confluence at the optic chiasm, anterior cerebral arteries, and anterior communicating artery during endoscopic endonasal resection of a craniopharyngioma compressing chiasm [Figure 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. 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 craniopharyngiomasw|
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We highlight the importance of a multidisciplinary approach and application of advanced intraoperative technology in the management of lesions affecting the visual pathway.
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Conflicts of interest
There are no conflicts of interest.
| References|| |
Miyagishima T, Tosaka M, Yamaguchi R, Nagaki T, Ishii N, Kojima T, Yoshimoto Y. Extended endoscopic endonasal resection of craniopharyngioma using intraoperative visual evoked potential monitoring: Technical note. Acta Neurochir (Wien) 2019;161:2277-84.