Example image of eyePlorer eyePlorer map for 'Ewald Hering': 1834 1918 August 5 Color vision Germany January 26 Physiology Constantine Hering Charles University in Prague Kingdom of Saxony University of Leipzig Hermann von Helmholtz Thomas Young (scientist) Primary color Opponent process Color Afterimage Brain Color constancy Edwin H. Land Eye Hering illusion Optical illusion Hering's law of equal innervation Hering-Breuer reflex Natural Color System Johannes Gad List of human anatomical parts named after people Otto Funke Color difference Siegmund Mayer Canals of Hering Alfred Bielschowsky Josef Breuer Leon Orbeli Stereopsis 1834 in science 1918 in science Binocular rivalry Theory of Colours (book) Color model W. H. R. Rivers History of aesthetics (pre-20th-century) Johann Wolfgang von Goethe