Jun
17
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Shinobu Ishihara was the Japanese ophthalmologist who first developed the standard color blindness test. He found that by creating special placards covered with colored dots of many different colors, he could detect color blindness in some individuals.
This was done by portraying a number or other image within the matrix of dots that would be perceived by “normal” viewers but not by people with color vision deficiency.
This online test is a sophisticated review of his methods.
Also, watch out for the “reverse” color blindness test that is included!
Ishihara Test Color Deficiency
May
27
New Test: Color Vision Test
Filed Under Color blind test | Leave a Comment
Have you ever wondered how the world looks to a person with color vision deficiency?
With this new online color blindness test you can find out. This test will both diagnose your own vision, in order to determine if you have color vision deficiency, but will also provide you with examples of how common sights would look to the colorblind individual.
It’s fascinating.
Color Vision Test
May
20
New Test: Color Blind Test
Filed Under Color blind test | Leave a Comment
Color Blindness is a serious disability, but one that can be accommodated for in most daily tasks which normally require color recognition.
This test will determine whether or not you have mild or serious color blindness. Most colorblind people have difficulty seeing the color green.
If you think that you may be colorblind, you should still visit an eye doctor before jumping to conclusions.
For color blind people, there are many ways to accommodate this disability. For example, while driving, traffic lights can be read through their relative position rather than their color.
Take this color blind test for a preliminary prognosis.
Apr
20
This test, I think, is one of the most efficient tests for colorblindness on the web. You will be asked to simply look at nine squares, each containing a pattern of colored circles. If you are not at all colorblind, you will be able to see a number in each of these squares. If you are colorblind, you will have difficulty seeing the number in one or more of the nine squares.
It’s that simple. Now you can lay the question to rest once and for all. If you aren’t colorblind, you can go on with your life as usual. If you do turn out to be colorblind, you will have to make a few slight changes, but at least you will know.
Rick Saphire’s Colorblind Test
Feb
17
New Test: Color Blindness
Filed Under Color blind test | 2 Comments
I’ve just posted a new test designed to show you if you are color blind or color vision deficient.
Many people are surprised to find out that nearly 10% of men are color vision deficient or color blind. This quick test takes just a few minutes and can help you to determine if you are able to differentiate between green and red hues. The most common form of color vision deficiency is an inability to do this.
You will see three pictures, and the test will ask you to answer one question for each picture regarding what shapes you can pick out in the image. This is no perfect diagnosis, but it can’t hurt to try!
Feb
17
Color blindness was discovered way back in 1798 by the legendary English chemist John Dalton (who was himself colorblind). He discovered that different individuals have different abilities to perceive colors, with some people being unable to distinguish between the colors that the majority of people differentiate as red and green.
In fact, nearly ten percent of males in the United States (the condition is rare in females) are color blind in some form.
The tests in this category are meant to test your ability to differentiate between different varieties of color. Just remember that they do not replace an official examination by an eye doctor 
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