Colour deficiency occurs when colours and shades appear different than usual. Although “colour blindness” is often used to describe people with a colour deficiency, this often is not accurate. Total colour blindness is referred to as achromatopsia, and the condition only affects a very small number of people.
In the retina, different types of cells detect light, called rods and cones. Rods are responsible for identifying light and dark and helping you see in low light.
Cones help to determine different colours, specifically red, green, and blue. The cones send information to the brain to create different colour perception. If one or more of these cones aren’t functioning correctly, colour deficiency occurs.
Types of Colour Deficiency
Different types of colour deficiency exist when different cones in the eye aren’t functioning correctly or pick up on the wrong colours.
EnChroma glasses work by selectively filtering out specific wavelengths of light that overlap and create confusion between colours. They are uniquely engineered to give those with colour deficiency the ability to see the entire broad spectrum of colour that many of us enjoy.
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