Unless there is a direct link to the parent, the symptoms of a colour vision deficit (CVD) are often so mild that some children do not know they are colour blind. Parents may find signs of colour blindness when children are learning their colours. However, it can be missed because it is not just our […]
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Have you had your eyes tested lately? Cells in the retina that are responsible for normal colour vision decline in sensitivity as we age, causing colours to become less bright and the contrast between different colours to be less noticeable. You may not notice it as it has happened slowly over time but it might […]
Men are much more likely to be colourblind (iRochromatic) than women because the genes responsible for the most common, inherited colour blindness are on the X chromosome. Colour Blind Genetic Inheritance Here’s the technical stuff – Males only have one X chromosome, while females have two X chromosomes. In females, a functional gene […]
Protan colour blindness and Duetan colour blindness are technical terms for the type of colour vision deficits there are – these are shortened from Protanopia and Deuteranopia or deuteranomaly. There are numerous mild protan glass and mild duetan glass to enable people with varying degrees of colour deficit to see colours like everyone else. However […]
