Troxler effect

English

Etymology

First identified by Swiss physician Ignaz Paul Vital Troxler in 1804.

Proper noun

the Troxler effect

1. An optical illusion whereby, when a person fixes the gaze on a particular point, an unchanging stimulus away from the fixation point appears to fade away and disappear.

Synonyms

• Troxler fading, Troxler's fading