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Colour blindness, also known as colour vision deficiency, is the decreased ability to see colour or differences in colour. Colour blindness can make some educational activities difficult. Buying fruit, picking clothing, and reading traffic lights can also be more challenging. Problems, however, are generally minor and most people adapt. People with total colour blindness may also have decreased visual acuity. The most common cause of colour blindness is due to a fault in the development of one or more of the three sets of colour sensing cones in the eye. Males are more likely to be colour blind than females…