Question:

For conducting a color blindness test can i use a 5 year old worn out book of ISHIHARA?

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For conducting a color blindness test can i use a 5 year old worn out book of ISHIHARA?

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  1. Sure, as long as the colors haven't faded.


  2. Yes, you need to use PIP to get a good test.

    http://colorvisiontesting.com/ishihara.h...

    http://www.amazon.com/Ishihara-Compatibl...

    http://colorvisiontesting.com/Waggoner%2...

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