Your Eyes and how they see colours.
Colours are known to enhance beauty, especially when combined together in the right amount and pattern. Our eyes allows us to see colours and appreciate their aesthetics effect.
How do you think we see colours? We simply see colours because of light! It is when there is presence of considerable amount of illumination that you can appreciate the colours you see! Also, we have two photoreceptors, RODS and CONES (retina cells that act on light) that allow us to process what we see either in bright light( day time) or dim light ( night time). The RODS work on white and black colours, while the CONES process all types of colours except white and black.
However, there are some people that despite having enough illumination to see colours, they still have difficulty seeing the colours the exact way they are, or they can’t distinguish between certain colours. This condition is called COLOUR VISION DEFICIENCY.
TYPES OF COLOUR VISION DEFICIENCY
The most common form of colour deficiency is ‘red-green’ colour deficiency. This does not mean that people with this deficiency cannot see these colours altogether, they simply have a harder time differentiating between them, which can depend on the darkness or lightness of the colours.
Another form of colour deficiency is blue-yellow. This is a rare type and more severe form of colour vision loss than just red-green deficiency because people with blue-yellow deficiency frequently have red-green blindness too. In both cases, people with colour-vision deficiency often see neutral or gray areas where colour should appear.
People who are totally colour vision deficient, a condition called achromatopsia, can only see things as black and white or in shades of gray.
Colour vision deficiency can range from mild to severe, depending on the cause. It affects both eyes if it is inherited and usually just one if it is caused by injury or illness.
COLOUR VISION DEFICIENCY can be from birth (inherited) or acquired later in life from condition such as Diabetes, Glaucoma, Macular Degeneration or from the use of certain medications (Drugs used to treat heart problems, high blood pressure, infections, nervous disorders and psychological problems), Aging, Chemical exposure( chemicals such as fertilizers and styrene ).
TREATMENT FOR COLOUR VISION DEFICIENCY
There is no treatment for congenital colour blindness. It usually does not cause any significant disability. However, there are special contact lenses and glasses that may act as a filter to enhance the accurate perception of colours.
If you observe that you are having issues trying to distinguish shades of colour, you should visit an eye clinic to get a comprehensive eye test.
For fun exercise, kindly observe closely the numbers inscribed in the picture above and drop the numbers in the comment section.
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