Identifier |
20210221_nanos_posters_089 |
Title |
Visual Field Defects in Chiasmal Lesions |
Creator |
Laura Donaldson; Arshia Eshtiaghi; Edward Margolin |
Affiliation |
(LD) (AE) (EM)University of Toronto, Toronto, Canada |
Subject |
Visual Fields; Neuroimaging; Tumors |
Description |
Classic teaching states that compression of the optic chiasm impacts decussating nasal retinal axons producing a bitemporal hemianopia (BTH). In fact, visual field defects resulting from chiasmal lesions are quite variable1. Junctional scotoma (JXS) is thought to occur with compression of the optic nerve (ON)-chiasm junction where nasal axons from the contralateral eye have been described to make an anterolateral detour forming a structure called Wilbrand's knee2. We hypothesized that the pattern of visual field defect would be predicted by the radiologic appearance of a lesion and its location relative to the optic chiasm. |
Date |
2021-02 |
Language |
eng |
Format |
application/pdf |
Type |
Text |
Source |
2021 North American Neuro-Ophthalmology Society Annual Meeting |
Relation is Part of |
NANOS Annual Meeting 2021: Poster Session II: Disorders of the Anterior Visual Pathway (Retina, Optic Nerve, and Chiasm) |
Collection |
Neuro-ophthalmology Virtual Education Library: NOVEL http://NOVEL.utah.edu |
Publisher |
Spencer S. Eccles Health Sciences Library, University of Utah |
Holding Institution |
North American Neuro-Ophthalmology Association. NANOS Executive Office 5841 Cedar Lake Road, Suite 204, Minneapolis, MN 55416 |
Rights Management |
Copyright 2021. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright |
ARK |
ark:/87278/s63g0k7f |
Context URL |
The NANOS Annual Meeting Neuro-Ophthalmology Collection: https://novel.utah.edu/collection/NAM/toc/ |
Setname |
ehsl_novel_nam |
ID |
1675832 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s63g0k7f |