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Are You Colour Blind?
Colour blindness is a term that’s often incorrectly used. If you’re a man, for example, you may find yourself accused of being colour blind by your wife for calling what she calls beige “brown”. That is not really colour blindness; it’s just poor understanding of colour! We might not be able to sway you from using the term “colour blind” in the future or promise that men will correctly identify their colours, but we can provide you some facts on what it really is! · 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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