• Question: do we all see colour the same?

    Asked by to Edward, Ian, Mathew, Naomi, sakshisharda on 19 Jun 2014. This question was also asked by .
    • Photo: Sakshi Sharda

      Sakshi Sharda answered on 19 Jun 2014:


      Hi addelle

      That’s a very interesting question! No we don’t all see the colours in the same way. There are kinds of colour blindness. There is one in which the person cannot see colours at all! Then there are some in which the person cannot distinguish between red-green or blue- yellow. These are mainly called sex-linked blindnesses which means that if one of the parents is colour blind that there are chances that the child may also be one.

      There are tests to tell you whether or not you are colour blind for a particular colour, it would be fun to try this on some of your classmates. Here it is- http://colorvisiontesting.com/online%20test.htm

      Basically, colour blindness happens when our eyes are not able to detect that particular wavelength of light. We have special pigments in the on our retina (innermost layer of the eye) that are sensititve to different colours, if one of the pigments is missing or not being made, we are blind for that colour.

    • Photo: Ian Stephenson

      Ian Stephenson answered on 21 Jun 2014:


      some people also have super colour vision, where they can see the difference between colours that normal people can’t!

      It’s also linked to gender/genetics, and only a small number of girls have this super-power. It’s not really well understood or documented, because its so hard for people without the ability to be able to understand what it would be like, but some estimates suggest that as many as 1 in 80 people may have super-colour-vision (which it technically known as tetrachromaticity)

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