Colour vision is the ability to see differences in the wavelength of light reflected by different objects.
Some people find it difficult to distinguish between certain colours. This is known as colour deficiency. The most common colours that people mix up are red and green. Approximately 8% of men, and 0.5% of women have colour deficiency. A simple test will determine if your colour vision is normal.
Certain occupations require normal colour vision. These include the army, the guards, electricians, train drivers and pilots.
It’s worth having your child’s colour vision checked. This means that you can steer them towards a different career choice if needed. It’s easier to do that at a younger age, rather than when they’re about to start an apprenticeship or join the guards and are disappointed at the last minute.