The Ishihara Test is the most well-known color blindness test all around the world. It consists some Plates so called pseudoisochromatic plates, each of them showing either a number or some lines. According to what you can see and what not, the test gives feedback on the degree of your red-green color vision deficiency.
This test can only be used to detect red-green color blindness.
How the test works: For each plate, you have to see the number. If you don’t see anything means You Are Colourblind.
