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Created with Fabric.js 1.4.5 Color Blindness Facts -Most people are not acually color blind but color deficient. -There are three main types of color vision deficiency: protan, deutan, and tritan defects. -Strongly colorblind people might only be able to tell about 20 hues apart from each other, with normal color vision this number raises to more than 100 different hues. -Dogs are not acually Color Blind. -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. -There are people which are really suffering from complete color blindness, which is called achromatopsia or monochromacy. -99% of all colorblind people are suffering from red-green color blindness. -There is no treatment or cure for color blindness. -About 0.5% of all women are suffering from color blindness. -A lot of people with normal color vision cant pass an Ishihara plates test free of errors. The Anomaloscope is the most accurate color blindness test known today. An anomaloscope is based on a color match. Two different light sources have to be matched to the same color. On one side you have a yellow color which can be adjusted in brightness. The other side consists of a red and a green light where as the proportion of mixture is variable. Doctors use cards like the one shown to see what shades of colors people can identify. Can you identifythe shapes. Again this is the way people with Deuteran and Protan see compared to the normal human eye. Here you see the way people with Protanopia and Tritanopia see compared tothe normal human eye. One in fourteen males are said to have some sort of color dificienty. When dealing with color blindness
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