What is an Ishihara text used for?

  1. juniorsbook profile image72
    juniorsbookposted 7 years ago

    What is an Ishihara text used for?

  2. Docmo profile image93
    Docmoposted 7 years ago


    I think you probably meant Ishihara 'test'.

    This is used to test colour blindness - a test for red- green colour blindness using plates with different patterns that have numbers that help detect the problem.

    Devised by the Japanese Professor Dr Shinobi Ishihara in Tokyo.

    Can you read the numbers contained within?