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optical illusion

An optical illusion (also called a visual illusion) is an erroneous perception of reality in that the visually perceived images differ from the real world object. The information observed by the eye is processed in the brain in such a way that it causes a viewer to misunderstand or misinterpret what he or she actually sees.

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  • Part of Speech: noun
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  • Industry/Domain: Eyewear
  • Category: Optometry
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