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Are You Colour Blind?

·       Why colour blindness occurs: colour blindness occurs when light-sensitive cells in the retinas don’t appropriately respond to the variations of wavelengths that differentiate colour.

·       What causes colour blindness: it’s often present at birth and may have a genetic component. It can also be caused by conditions like Parkinson’s disease, cataracts, drugs that treat epilepsy, Kallman’s Syndrome, and Leber's hereditary optic neuropathy (LHON).

·       What people with colour blindness see – people who are colour blind do see colours, they don’t see just in shades of grey or black and white. Colours are typically more muted, and some will have a hard time differentiating between yellow and blue or red and green.

·       When to seek treatment – if colour blindness has always been present, there is no treatment. However, gradual vision changes can be a sign of something much more severe so it’s important to get medical attention.

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