Everyone should be able to see the 12 embedded among the colored dots. This first test is used to explain the procedure of the test to a subject.

Everyone should be able to see the “12” embedded among the colored dots. This first test is

used to explain the procedure of the test to a subject.

Normal subjects should see “8” while persons with red-green color blindness will see “3”.

Normal: “5”Color blind: “2”

Normal: “29”Color blind: “70”

Normal “74”Color blind: “21”

Normal:“7” Color blind: will decode this only with difficulty or not at all.

Normal:“45”Color blind:will decode this only with difficulty or not at all.

Normal: “2”Color blind: will not be able to decode

Normal: will read this panel with difficulty or not at allColor blind: “2”

Normal: most will read “16”Color blind: Most will not be able to decode

Normal: can trace the winding line from “X” to “X”Color blind: Red-green color blind persons either cannot trace the line or trace a different line

There are two major forms of red/green color blindness. Normal or slightly color blind persons can see a “35” in this illustration. Persons strongly affected by protan color blindness will see only a “5”, while those with strong deuteran color blindness will see only the “3”.

Normal: “96”Protan color blind: “6”Dueteran color blind: “9”

Normal: trace both linesProtan color blind: trace only the purple lineDeuteran color blind: trace only the red line. Persons of each group who are only mildly affected may trace both lines, but only with difficulty.