Ishihara Test. color blindness disease. perception test,
Keywords
colours,
test,
blindness,
chart,
brain,
blind,
eye,
optical,
vision,
dot,
retina,
clear,
iris,
see,
plate,
pattern,
monochrome,
view,
daltonism,
circle,
orange,
indication,
diagnostic,
grey,
funny,
scientific,
digit,
weakness,
number,
shade,
nerve,
various,
visible,
hue,
effect,
invisible,
play,
health,
spot,
sense