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48 Optical Illusions & Visual Phenomena

Have you ever wondered how different optical illusions work? This fun, informative, and very cool website developed by ophthalmologist Dr. Michael Bach of the University of Freiburg's Medical School introduces 48 interactive visual illusions and phenomena. The illusions are animated and accompanied by explanations that help visitors make sense of their perceptual responses. Major illusion categories include: Motion & Time, Luminance & Contrast, Colour, Cognitive, and more. The site is still in progress, and Dr. Bach encourages both general feedback, and additional scientific information for improving the illusion explanations. The second site, also from Professor Bach, presents site users with an interactive, online Visual Acuity Test. Note: The Contrast component of the Test has yet to be implemented.
Alternate Title
University of Freiburg-Medical School: Freiburg Visual Acuity & Contrast Test
Archived Scout Publication URL
Date of Scout Publication
November 30th, 1999
Date Of Record Creation
November 11th, 2004 at 10:35am
Date Of Record Release
December 16th, 2004 at 1:23pm
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