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OPHTHALMIC IMAGE
Year : 2020  |  Volume : 68  |  Issue : 11  |  Page : 2537

Optic chiasm: Visualizing the visual pathway


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 Publication26-Oct-2020

Correspondence Address:
Prof. Ramandeep Singh Virk
Department of Otolaryngology, Post Graduate Institute of Medical Education and Research, Chandigarh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_1163_20

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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

How to cite this URL:
Singh A, Chhabra R, Mehta A, Virk RS. Optic chiasm: Visualizing the visual pathway. Indian J Ophthalmol [serial online] 2020 [cited 2020 Nov 28];68:2537. Available from: https://www.ijo.in/text.asp?2020/68/11/2537/299013



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.[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 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.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
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.  Back to cited text no. 1
    


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