The test was developed by the Japanese ophthalmologist Shinobu Ishihara more in 1917. It has been widely used in medicine and is used to detect abnormalities of color perception (color blindness). In general, color blindness is considered to be a hereditary disease. Often inherit male (color vision genes are on the X - chromosome), but there are exceptions.
Distinct colors: green, blue, red - can distinguish almost everyone, but minor changes shades in some people causes difficulty with perception. Let's see how well things are going for you?
Just want to say that the article is for informational purposes and is not a reason for the adoption of any conclusions. In diseases and pathologies contact someone for help.
Test rules:
This test will be presented pictures of the circle within which there is a hidden number or the line (and maybe did nothing). The task to look at the picture for 10 seconds and choose the correct answer. Write your results in the comments. Go...
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After passing the test, record your results in the comments. Later be able to check the correct answers (will post them in the comments).
I would be grateful for "thumb up👍". Thanks for attention.
P.S. If you have high blood pressure, you can get acquainted with a number of rules for its normalization (Article "The basic rules of the hypertensive").
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