Color Deficiency Screening
This test should take under 10 minutes (most people complete it under 5) and consists of 27 questions. If you normally wear contacts or glasses, please feel free to wear or not wear them (according to your preference), while taking the test. If you see a number, please type the number you see in the text field below the color plate. If you see a line drawing (rather than a number), please choose the image that most closely resembles the drawing.