Penlight Cover Test (Partial Removal of Fixation)

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Identifier Penlight_Cover_Test_partial_removal_of_fixation
Title Penlight Cover Test (Partial Removal of Fixation)
Creator Olwen Murphy, MD; Daniel R. Gold, DO
Affiliation (OM) Department of Neurology, The Johns Hopkins School of Medicine, Baltimore, Maryland; (DRG) Departments of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, Emergency Medicine, and Medicine, The Johns Hopkins School of Medicine, Baltimore, Maryland
Subject Penlight Cover Test (Partial Removal of Fixation)
Description Penlight cover test (partial removal of fixation): during in-person clinical encounters, the maneuvers below are best tested with complete (or near complete) removal of fixation (e.g., Frenzel or video Frenzel goggles). Removal of fixation is more challenging during virtual evaluations but can be approximated using the penlight cover test. Instruct the patient to go into a dark area and shine a light from a cell phone or torch into one eye (holding the light source at a distance of 2-3 inches from the eye to make fixation more challenging due to the brightness of the light) while occluding the fellow eye with the other hand. Assess for spontaneous nystagmus or nystagmus in eccentric gaze. If a dark area is not available, the following tests can be completed in normal lighting, but abnormalities may be more subtle since removal of fixation will accentuate peripheral vestibular nystagmus.
Date 2022
Language eng
Format video/mp4
Type Image/MovingImage
Collection Neuro-Ophthalmology Virtual Education Library: Dan Gold Collection: https://novel.utah.edu/Gold/
Publisher North American Neuro-Ophthalmology Society
Holding Institution Spencer S. Eccles Health Sciences Library, University of Utah
Rights Management Copyright 2016. For further information regarding the rights to this collection, please visit: https://NOVEL.utah.edu/about/copyright
ARK ark:/87278/s6qwv7c0
File Name Penlight_Cover_Test_partial_removal_of_fixation_.mp4
Setname ehsl_novel_gold
ID 1757572
Reference URL https://collections.lib.utah.edu/ark:/87278/s6qwv7c0
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