This file is a stereogram. Stereograms are stereoscopic images or animations which combine left and right frames showing slightly different visual angles to allow for 3D perception.
The stereogram uses wiggle stereoscopy, which quickly oscillates between the left and right frame (and sometimes intermediate frames) to create an illusion of 3D perception without requiring stereoscopic vision or devices.
Summary
DescriptionOptic cup and macula - 3D motion parallax.gif
English: The optic disc, optic cup, and macula of a healthy 24 year old female (healthy rim tissue with a deep cup). Image is released to wikimedia commons with patient consent. GIF displays a three dimensional view of the cup via motion parallax.
Imaged with a non-mydriatic fundus camera at Pacific University College of Optometry.
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