Look into the circles. What numbers do you see in the dots? Answers below
The Ishihara test is a color perception test for red-green color deficiencies, the first in a class of successful color vision tests called pseudo-isochromatic plates. It was named after its designer, Shinobu Ishihara, a professor at the University of Tokyo, who first published his tests in 191
These dots are arranged in specific patterns to form numbers or figures that can be seen by people with normal color vision while those with color deficiency won’t be able to see all or parts of these colored plates.
Some of the Ishihara plates are visible only to those with color vision deficiency and there are invisible to those with normal color vision
Ishihara test plate 1
This plate is seen by everyone, with normal or abnormal red green colorblind.
Ishihara test plate 2
Normal person see it as 8 while person with Red-green deficiency see it as 3.
Ishihara test plate 3
Normal person see it as 6 while person with Red-green deficiency see it as 5.
Ishihara test plate 4
Normal person see it as 29 while person with Red-green deficiency see it as 70.
Ishihara test plate 5
Normal person see it as 57 while person with Red-green deficiency see it as 35.
Ishihara test plate 6
Normal person see it as 5 while person with Red-green deficiency see it as 2.
Ishihara test plate 7
Normal person see it as 3 while person with Red-green deficiency see it as 5.
Ishihara test plate 8
Normal person see it as 15 while person with Red-green deficiency see it as 17.
Ishihara test plate 9
Normal person see it as 74 while person with Red-green deficiency see it as 21.
Ishihara test plate 10
Normal person see it as 2 while person with Red-green deficiency: most people don’t see anything or see something wrong.
Ishihara test plate 11
Normal person see it as 6 while person with Red-green deficiency: most people don’t see anything or see something wrong.
Ishihara test plate 12
Normal person see it as 97 while person with Red-green deficiency: most people don’t see anything or see something wrong.
Ishihara test plate 13
Normal person see it as 45 while person with Red-green deficiency: most people don’t see anything or see something wrong.
Ishihara test plate 14
Normal person see it as 5 while person with Red-green deficiency: most people don’t see anything or see something wrong.
Ishihara test plate 15
Normal person see it as 7 while person with Red-green deficiency: most people don’t see anything or see something wrong.
Ishihara test plate 16
Normal person see it as 16 while person with Red-green deficiency: most people don’t see anything or see something wrong.
Ishihara test plate 17
Normal person see it as 73 while person with Red-green deficiency: most people don’t see anything or see something wrong.
Ishihara test plate 18
Normal person will see nothing while person with Red-green deficiency will see it as 5.
Ishihara test plate 19
Normal person will see nothing while person with Red-green deficiency will see it as 2.
Ishihara test plate 20
Normal person will see nothing while person with Red-green deficiency will see it as 45.
Ishihara test plate 21
Normal person will see nothing while person with Red-green deficiency will see it as 73.
Ishihara test plate 22
Normal person will see it as 26 while person with Protanopia or protanomaly will see it as 6 and patient with Deuteranopia or deuteranomaly will see it as 2.
Ishihara test plate 23
Normal person will see it as 42 while person with Protanopia or protanomaly will see it as 2 and patient with Deuteranopia or deuteranomaly will see it as 4.
Ishihara test plate 24
Normal person will see it as 35 while person with Protanopia or protanomaly will see it as 5 and patient with Deuteranopia or deuteranomaly will see it as 3.
Ishihara test plate 25
Normal person will see it as 96 while person with Protanopia or protanomaly will see it as 6 and patient with Deuteranopia or deuteranomaly will see it as 9.
Learn More about How Colorblindness Works:
