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There’s no cure or treatment for colour blindness. You can discuss this option with your GP or optometrist. If there are other people in the family with colour blindness, it might be a good idea to have your child tested. They’ll refer your child to an ophthalmologist for testing. If you think your child might be colour blind, see your GP or optometrist. Does your child need to see a health professional about colour blindness? Your child might say that 2 different colours are the same or struggle to separate things according to colour.Ĭolour blindness might become obvious at preschool or school, especially when your child is doing activities like sorting blocks, colouring or copying text of different colours.Īlthough children with colour blindness confuse some colours, their vision should be clear.Ĭolour blindness stays the same over time. If your child has colour blindness, they might have trouble telling the difference between reds, greens, browns and oranges after about the age of 4 years. In a person who is colour blind, 1 of the 3 cone cell types doesn’t work properly. Each type responds to a different colour – red, green and blue. Causes of colour blindnessĬone cells in our retinas help us see differences between colours. Boys usually inherit colour blindness from their mother’s side of the family.
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About 8% of boys have red-green colour blindness. Nearly all children with colour blindness are boys. This is when you have trouble telling the difference between greens, browns, reds and oranges.īlue-yellow colour blindness is when you have trouble telling the difference between blues and yellows.This type of colour blindness is rare. Red-green colour blindness is the most common type.
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You are confronted with color blindness every day - even if you don’t know about it yet.Ĭolor Blindness Test by Dr Shinobu Ishiharaĭirect link to the Color Blindness Testing Poster web site.Colour blindness is when you don’t see some colours the way that other people see them. The book is not only a good source of information for children but also for teachers and helps to better understand color blindness and how you can support children affected by this deficiency.ĭear teachers, please learn more about color blindness, try to understand it, be aware of it whenever colors are involved or even buy one of this posters. She also gives some hints and tipps for everyday life. That’s why she wrote a book on color vision deficiency for children to explain this phenomenon in simple words and pictures. If color blindness is understood a teacher can support affected children by choosing correct colors, supporting colors with signs and be a helping hand if colors are the source of understanding for example in biology classes.Īrlene Evans found out about this lack of information when she was working as a school teacher. It can lead to unexplainable test results, completely wrong answers and misunderstandings. But if the teacher and the child would know about it there learning experience could be improved a lot.Ĭolor blindness is frustrating not only for the affected child but also for teachers. As a conclusion there is about in every school class a child which has some kind of color vision deficiency and usually this isn’t recognized immediately. There are approximately 8% of men affected by color blindness.
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Somewhere I spotted the number 99 until my wife corrected me - it is the number 79. Nothing else! Well, if I look very close I can see some numbers. Only at the bottom to the left and right side I can see some lines and that’s about it. As for my person I just feel like a blind man when I look at all the dots.