![]() ![]() 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. 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. Colour vision testing is not part of the. 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. Even if children have had eye tests with an optometrist dont assume colour blindness will have been picked up. 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. ![]() Tritanomaly: This is an alleviated form of blue-yellow color blindness, where the S-cones are present but do have some kind of mutation. This means the S-cones are completely missing and only long- and medium-wavelength cones are present. Somewhere I spotted the number 99 until my wife corrected me - it is the number 79. There are two different types which can be observed: Tritanopia: People affected by tritanopia are dichromats. 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. ![]()
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