All about color blindness: A guide to color vision deficiency for kids – written by Karen Rae Levine, the mother of a boy with color vision deficiency.For ages 9-12 (though one review I read said it would be appropriate for kids as young as 5 or 6). Seeing Color: It’s my rainbow, too – written by Arlene Evans, a school nurse who worked with many kids with color vision deficiency.I have not read these books, I welcome any reviews or other recommendations: There are a few books that I found for kids about color vision deficiency. This site offers a free online test for color vision deficiency, but make sure you see an eye doctor for a final diagnosis. The site has a lot of good information about color vision deficiency. Color Blind Home Page is a site written by publishers of a color vision test.Note: make an appointment with an eye doctor if you suspect your child has a color vision deficiency. 5 online color blindness tests links and explanations of some of the different types of tests.How to explain color blindness to your little boy.Is my son colorblind? (this is also applicable to daughters, just boys are much more likely to have color vision deficiencies).There’s also a very nice vision simulator that lets you choose different pictures and different types of color blindness. It has a really good overview of the types of colorblindness, causes, and tests. Colorblindness is a part of a web exhibit on color.I relied very heavily on the excellent Colblindor website for this post. There are online color vision tests, but you will need to see an eye doctor to diagnose color vision deficiencies accurately. If you’re noticing that your child is consistently confusing colors or naming colors incorrectly, they should be tested before starting Kindergarten. Parents of children with strong color vision deficiency often start to notice problems between the ages of 3 and 10. At age 2, they should be starting to match colors, around age 3 beginning to name colors, and between 4 and 6, have good color naming skills. Should I test my child’s color vision?Ĭhildren normally develop full color vision by 6 months, but as most parents will tell you, they won’t know their colors by name until well past that age. There’s a nice post at ColorVisionTesting that talks about ways teachers can help their students with color vision deficiency. However, you may still need to advocate for your child and make sure he or she receives the adaptations they need in school. Color deficiency is common enough that statistically, there will be one student with color vision deficiency in each classroom. ![]() That’s why, if you know that your child has color vision deficiency, it is important that you talk with his or her teachers so they all know about it and can adjust those accordingly. 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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