Activity Sheet 1: Colour Blindness - self test.

COLOUR BLINDNESS

Colour blindness colour test plates

Colourblindness affects one in 12 men, and about 1 in 100 women. But because of the way it is passed down through our genes, very few women have the condition. There are many different types and degrees of colourblindness - more accurately termed colour deficiencies. The most common form of colourblindness is red-green (termed Deuteranamolous), after which comes blue-yellow (termed Tritanamolous), then finally red-blue-green confusion (termed Protanamolous) . It is extremely rare to be totally color blind - achromatopsia is the inability to see any colour and is reported to affect only one person in about 33,000.

For more information on colourblindness, see Worksheet 2 - the Human Eye

Colourblindness Self Test

Can you see the hidden numbers?

Write down your answers and check with the correct answers below

Colour Test Plate - answer below

Can you see the shapes

Write down your answers and check with the correct answers below

Colour Test Plate - answer below

NOTE - these are just vision test examples. If you have trouble seeing the numbers or distinguishing between the colours from the below examples, try a few other exercises with the help of your teacher or a fellow student.
If you still believe you may have a colour deficiency, it is best to make an appointment with an optometrist.

Answers:

NUMBERS: 5 | 8 | 9 | 5 | 3 | 5 | 9 | 10 |
SHAPES: Plate 1 - Circle and arch, Plate 2 - Circle, star and square

Information Sources: