• Question: What is the most popular colour that people see when they are dazzled by bright lights? Can this be tested in day time to?

    Asked by to Michael, Nancy on 24 Jun 2014. This question was also asked by .
    • Photo: Michael Kelly

      Michael Kelly answered on 24 Jun 2014:

      People don’t really see a colour when they are dazzled. Our vision is sometimes divided into two parts a lightness channel and a colour channel. After the dazzle, the after image is usually coloured, if the dazzling light was green then the after image is usually red and the other way round. There is a weaker link between blue and yellow. Dazzling white light often produces a purple after image, this is white contains all the colours and purple is really produce by our eyes not because there is a colour purple.

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