File:Voluntary pupil dilation.gif

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Voluntary_pupil_dilation.gif (640 × 360 pixels, file size: 7.72 MB, MIME type: image/gif, looped, 135 frames, 14 s)

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Summary[edit]

Summary
Description A human adult male exhibiting direct voluntary control of his iris muscles, subjecting his pupil to dilation and constriction.
Source Wikimedia Commons file page
Author Rapidreflex
Permission See original Commons license details.

Licensing[edit]

Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)

This file is licensed under the Creative Commons Attribution-ShareAlike 4.0 International license.

You are free to:

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  • Adapt — remix, transform, and build upon the material.

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Official license: CC BY-SA 4.0

License page: CC BY-SA 4.0

Original attribution and file history: Wikimedia Commons

File history

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Date/TimeThumbnailDimensionsUserComment
current03:29, 5 June 2026Thumbnail for version as of 03:29, 5 June 2026640 × 360 (7.72 MB)Maintenance script (talk | contribs)== Summary == Importing file

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