What is this online Color Blindness Test all about?
The usual color blindness test is refered to the Ishihara color test and the one we use her consists of a number of colored plates, called Ishihara plates, each of which contain a circle of dots appearing randomized in color and size. Within the pattern are dots which form a number visible to those with normal color vision and invisible, or difficult to see, for those with a red-green color vision defect. The full test consists of 38 plates, but the existence of a deficiency is usually clear after a few plates.
Note: Note that Color Blindness Test.net is not a diagnostic test nor should it replace color blindess tests undertaken by trained medical professionals.
If you are concerned about your color vision seek the advice of a professional for color blindness testing or otherwise.
A positive note regarding color blindness which is usually classed as a mild disability, is under in certain situations, color blind individuals have an advantage over those with normal color vision. There are some studies which conclude that color blind individuals are better at penetrating certain color camouflages and it has been suggested that this may be the evolutionary explanation for the surprisingly high frequency of congenital red-green color blindness
Other color blindness facts:
- 99% of all colorblind people are not really color blind but color deficient; the term color blindness is misleading.
- Color blindness is more prevalent among males than females, because the most common form of color vision deficiency is encoded on the X sex chromosome.
- “What color is this?” is the most annoying question you can ask your colorblind friend.
- 5%-8% of men and 0.5% of women are colorblind.
- A color-defective male always inherits his deficiency from his mother, the mother however is not colorblind
- Bulls are actually colorblind, it is the motion of a red cape which angers them, not the color itself.
- Dogs can see some colors but are at the same time colorblind.
- Police officer, firefighter, and airline pilot are the most famous jobs which require normal color vision.
- There is no treatment or cure for color blindness
Many colorblind people have problems with matching clothes and buying ripe bananas.