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Colour vision deficiency

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Introduction
People with colour vision deficiency are unable to see some colours clearly and accurately. They may find it difficult to distinguish between different colours.
Symptoms of colour vision deficiency
If you have colour vision deficiency, you may have problems doing everyday activities that most people take for granted.
Causes of colour vision deficiency
Colour vision deficiency is often inherited (passed on from your parents). It can also sometimes be caused by another health condition or certain types of medication.
Diagnosing colour vision deficiency
Many people become aware that they have a colour vision deficiency when they have a problem identifying colours correctly.
Treating colour vision deficiency
There's currently no cure for inherited colour vision deficiency because it isn't yet possible to replace faulty light-sensitive cells in the retina.
Complications of colour vision deficiency
Colour vision deficiency won't usually affect your long-term health, but it could affect your choice of career.