thread: how do you tell if they are colour blind!?

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  1. #1
    Registered User

    May 2008
    ...where jumping on the bed is mandatory!
    2,225

    how do you tell if they are colour blind!?

    DD is only 26 months, she is really good at her alphabet and numbers and learns stuff really quickly, i have been trying to teach her colours since before we even thought about learning letters but she really doesnt know her colours very well. she knows black, white, grey, yellow and pink, but cant pick the other ones out. Are colours quite hard to learn and something that will just come in its own time or do you think its possible she is colour blind to some colours???

  2. #2
    BellyBelly Life Subscriber

    Jun 2005
    Blue Mountains
    5,086

    My ds is colour blind. They have dot pattern things they test with. He couldn't see the numbers in most of them.

    It's rare for a girl to be colour blind. It's usually carried by the girls but the boys get it. My bro is colour blind so I'm carrying the gene. Ds gets his coloured pencils and things right tho. It's when there's different shades that he starts getting it wrong. Like a really really dark green he can't tell what it is.

    We found out for sure at his 4yo screen and his referred eye test.

  3. #3
    Registered User

    Dec 2005
    6,706

    Colour blindness is actually a recessive gene carried on the X chromosome. The only way your daughter could be colour blind is if she got the gene for it from you and your DH. But this would mean (as men only have one X chromosome) that your husband would also be colour blind. If he's not, then she's just finding colours a bit tricky.

    BW

  4. #4
    Registered User

    Oct 2007
    Middle Victoria
    8,924

    Colour blindness is actually a recessive gene carried on the X chromosome. The only way your daughter could be colour blind is if she got the gene for it from you and your DH. But this would mean (as men only have one X chromosome) that your husband would also be colour blind. If he's not, then she's just finding colours a bit tricky.

    BW
    Rarely girls can inherit only one affected X chrom and still present with colourblindness. As women have 2 x chromosomes, one of them is randomly inactivated in each cell. If the non-affected chrom was turned off in all the eye cells (or whichever cellls dictate colour blindness) then a girl child could still be colour blind.

  5. #5
    Registered User

    Dec 2008
    8,986

    26 mths is quite young to diagnose colour blindness. It could be that she probaby doesn't remember the names of the colours and calls them any name that comes to her head. Girls are unlikely to be colour blind, they carry the gene and pass it on to their sons who are affected by it but can't pass it on.

    Is she getting particular colours like red, green, yellow or brown mixed up? These are the ones that usually get mixed up by colour blind people.

    My brother is colour blind, he had a lot of trouble with colours as a child but it was never thought that he could be colour blind. It wasn't until he was at school that a teacher picked it up. Because my brother is CB I coudl be a carrier so I had my Ds was tested when he was in kinder and he wasn't colour blind.

    You could take her to an optometrist for testing but she is quite young and probably wouldn't understand the test. She is only young and will probably pick the colours up in time, if she doesn't definitely look further into it.

  6. #6
    BellyBelly Life Subscriber

    Feb 2006
    melbourne
    11,462

    learning colours is a 3 year old task! she'll get there.... soon!

  7. #7
    Registered User

    Jun 2007
    Dandenong Ranges, Melbourne.
    5,673

    liz- can i ask you, did they test for this at the 4 year old mchn check?

  8. #8
    Registered User

    Jun 2008
    in the eye of a toddler tornado
    2,450

    Beth can get all the main colours but she usually calls red "colour" maybe that was the first one we said or something!
    Grace is very smart, I am sure she will get them all right soon, she has probably just been focusing on learning other things.

  9. #9
    BellyBelly Life Subscriber

    Jun 2005
    Blue Mountains
    5,086

    Ginger - when I took DS for his 4yo needles the nurse at the GP did her own kind of 4yo check, and I think she only got the colourblind chart things out cos I mentioned it. We were being referred for his vision to an opthamologist anyway, and when I told them, she did the similar charts with him and he's well & truly colourblind LOL. Think he could only see numbers in 1 of them!

    We recently did the MCHN 4yo check which was a bit different, but she didn't check his vision cos I told her we'd already seen the specialist etc. So I don't know if they have the colourblind tests there or not. They're pretty easy to find, so you can do it yourself.. here's the tests: Are You Color Blind? (thanks google! haha)