What do you see? For most Australians, you will be able to look at the image above and list all the numbers easily and clearly. If you see the numbers well, you are not colourblind. However, if you struggle or have difficult, this may be an indication that you are either partially or completely colourblind.
This particular image is part of the colour blind test developed by Dr Shinobu Ishihara in 1917. Almost 100 years ago, Dr Shinobu Ishihara created this colour blindness test to help individuals identify whether you were difficulty with your vision. To date, it is the most well-known and readily used.