Assertion: optical illusion | /r/Synonym | the troxler effect
Facets:
Source sentences:
text: This optical illusion is known as the Troxler effect (or Troxler fading), and is named after the man who discovered it in 1804, Swiss physician Ignaz Paul Vital Troxler.
text: This is due to an optical illusion known as the Troxler effect.