For both types of red-green color blindness (deuteranopia and protanopia) the biggest confusion between colors is in the axis between red and green. The with red lines corresponds to protanopia (“red” blindness), the green lines to deuteranopia (“green” blindness), and the blue lines to tritanopia (“blue” blindness). Based on the color of its lines, each diagram corresponds to one of the three main color vision deficiencies. The colors in the directions of the lines may be hard for them to discriminate from one another. The diagrams below demonstrate the colors that tend to be problematic for colorblind people. How does it work? – Scientific background of the color blind test The blue component of the purple disappears and becomes reddish. Yellow is seen as white and green is seen as turquoise. How people see color with titan type of colorblindnessĪs the tritan form of colorblindness becomes more severe, a tritan colorblind person will see the following. The diagnosis and the two spectrums will appear at the end. It is only for tritan type of color vision deficiency. In case of tritan type color blindness, you probably won’t notice (too much) difference between the two spectrums, but people with normal color vision will see the difference. Now you can show it! Based on the results of your color blind test, color spectrum is generated as you see and display it next to a normal color spectrum.īased on the test results, we generate a color spectrum as you may see (and display it next to a normal one). You have probably been asked often how you see colors. If both of these numbers are equal but you have a red-green deficiency (as determined by the first image series) then you may have a deutan color deficiency. If the purple-green number is greater than the purple blue number, than you may have a protan color deficiency. Also, if the purple-blue number is greater than the purple-green number than you may have a deutan color deficiency. For example, if you get 14 out of 14 right, you have normal color vision, 1 – 5 right is severe, 6 – 10 is moderate, and 11 or 12 is mild color vision deficiency.
Color blind series#
The number of the first image in the second or third series that you cannot distinguish the gap in represents the severity of color deficiency. These determine if you have a green deficiency (deutan). The third series contains purple-green images. These determine if you have a red deficiency (protan). The second series contains purple-blue testing images. If you do, the second and third series determine which type of red-green deficiency and its severity. The first series determines if you have a red-green deficiency. The test contains three series of images. The goal of this test is to find where the gap is located in the “C shape” (known as a “Landolt Ring”) and to click on it.
Color blind professional#
Only a Eye care professional in a controlled environment can provide such a diagnosis. Keep in mind that this test is not a clinical diagnosis.
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