![]() 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. 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. Colour blindness is when you don’t see some colours the way that other people see them.
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