Identifier |
20190319_nanos_posters_235 |
Title |
Reflex Upper and Lower Eyelid Movement in Response to Light Stimuli |
Creator |
Melanie Truong-Le, Nitsan Duvedan-Strier, Matthew Thurtell, Michael Wall, Konrad Weber, Rawan Omary, Pieter Poolman, Randy Kardon |
Subject |
Pupils Retina; Diagnostic Tests (ERG, VER, OCT, HRT, mfERG, etc); Eyelid & Adnexal Disease; Miscellaneous |
Description |
In response to a light stimulus, a reflex orbicularis contraction of the upper and lower eyelid occurs in proportion to light intensity. Our purpose was to determine if the photic blink reflex can be used as an objective, clinical measure. To initiate our understanding of this underutilized reflex, we compared the photic eyelid reflex to the pupil light reflex in the same eyes across subjects. We hypothesized that the percent change in fissure narrowing will correlate with the percent change in pupil contraction for the same light stimulus. We also hypothesized that oculosympathetic deficits to Mueller's muscle and the iris dilator muscle would result in deficits in reflex widening of the palpebral fissure correlating to reflex dilation of the pupil. |
Date |
2019-03 |
Language |
eng |
Format |
application/pdf |
Source |
2019 North American Neuro-Ophthalmology Society Annual Meeting |
Relation is Part of |
NAM 2019: Poster Session II: Scientific Advancements in Neuro-Ophthalmology |
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 2019. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright |
ARK |
ark:/87278/s61z8p4k |
Context URL |
The NANOS Annual Meeting Neuro-Ophthalmology Collection: https://novel.utah.edu/collection/NAM/toc/ |
Contributor Primary |
Melanie Truong-Le |
Contributor Secondary |
Nitsan Duvedan-Strier, Matthew Thurtell, Michael Wall, Konrad Weber, Rawan Omary, Pieter Poolman, Randy Kardon |
Setname |
ehsl_novel_nam |
ID |
1432893 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s61z8p4k |