Images from http://www.uni-mannheim.de/fakul/psycho/irtel/cvd.html Colors confused by protanope Colors confused by deuteranope Colors confused by tritananope (from http://www.geocities.com/Heartland/8833/coloreye.html) some Ishihara plates (photos of Vision test scoring) Isihara Score #1 Isihara Score #2 D-15 Score #1 D-15 Score #1