These can be very difficult and frustrating for children with color vision deficiency. Many worksheets and exercises are color coded (“color the circle red” or “how many green dots are there?”), and later, charts and graphs used in assignments often have a color component. Unfortunately, children with color vision deficiencies will often have trouble at school. As the author states,Įven if they really have some problems with colors their life is still very colorful. One question was whether they see rainbows, both boys answered yes. What does it mean for my child to have color vision deficiency?Ĭolblindor has a pretty sweet interview with two boys with color vision deficiency asking about what they see in terms of color. It is based on the longer documentary, “ No such thing as color.” This is a short documentary that was put together to explain color vision deficiency to children. What is it like to have color vision deficiency? Achromotopsia is also associated with poor visual acuity and nystagmus. This is called “achromotopsia” and is very rare: it affects around 1 in 30,000 people. Some people truly are “color blind” in that they cannot see any colors at all. About 8% of men and about 0.5% of women have a color vision deficiency. Color vision is encoded on the X chromosome, which means that men are far more likely to have color vision deficiencies than women. Those with strong color vision deficiencies may only be able to distinguish 20 colors.Ĭolor vision deficiency is usually hereditary, though it is sometimes caused by injury. People with normal color vision can distinguish more than 100 different colors. The most common types of color vision deficiencies are with shades of reds and greens. “Color blindness” is actually a misleading term, the more accurate term is “color vision deficiency.” Nearly everyone can distinguish some colors, but people with color vision deficiency have trouble seeing differences between certain shades of colors. Image credit: National Eye Institute, National Institutes of Health Ref#: EE56 What is color blindness or color vision deficiency?
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