You could be suffering from colour blindness if you are unable to distinguish red, green or blue colours.
The most common form of colour blindness is known as red/green colour blindness. For the vast majority of people with deficient colour vision, the condition is genetic and inherited from their mother, although some people become colour blind as a result of diseases such as certain inherited retinal diseases, diabetes and multiple sclerosis or they acquire the condition over time due to the ageing process (age-related macular degeneration) or consumption of certain medication.
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