File:Scintillating zigzag scotoma.gif

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Original file ‎(1,600 × 952 pixels, file size: 1.63 MB, MIME type: image/gif, looped, 2 frames, 0.1 s)

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Summary

Description
English: Depiction of a scintillating scotoma, where viewers should be looking in the center of the image.

Such scotomas can be part of the aura phase of migraines.

The scintillations were of a zigzag pattern starting in the center of vision, surrounded by a somewhat larger scotoma area with distortion of shapes but otherwise melting into the background similarly to the physiological blind spot. This aura occurred on 2016-01-28, 7pm on a rather busy day.

The progress can be described as 10 minutes of zigzag pattern as shown, followed by 5 minutes with an addition of a waving ribbons coming from left (not shown in picture). In the following 5 minutes, scintillations where only seen peripherally and then disappeared, with another 20 minutes of only scotoma. This was followed by hours of mild left-sided headache.

File usage

It is preferable to use a static image in articles, linking to this flickering animation:

[[File:Scintillating scotoma - play.jpg|link=File:Scintillating zigzag scotoma.gif|thumb|Flickering animation a [[scintillating scotoma]]. The scintillations are of a [[zigzag]] pattern starting in the center of vision, surrounded by a somewhat larger area with distortion of shapes]]


This renders as:

Flickering animation a scintillating scotoma. The scintillations are of a zigzag pattern starting in the center of vision, surrounded by a somewhat larger area with distortion of shapes
Date
Source Own work
Author Mikael Häggström

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14 April 2016

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Date/TimeThumbnailDimensionsUserComment
current18:53, 14 April 2016Thumbnail for version as of 18:53, 14 April 20161,600 × 952 (1.63 MB)commons>Mikael Häggström{{Information |Description ={{en|1=Depiction of a scintillating scotoma, where the scintillations were of a zigzag pattern, surrounded by a somewhat larger scotoma area with distortion of...

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