Colour Vision Deficency
There are an estimated 300 million people in the world with colour vision deficiency (CVD). The trait is inherited genetically and carried on the X-chromosome, affecting about one in 12 men (8%) and one in 200 women (.5%). The colloquial term “colour blindness” most commonly, refers to deutan-type or protantype CVD, which are both types of red-green colour blindness. EnChroma Cx eyewear is designed to address most forms of red-green colour blindness.
What do People with CVD See?
People with red-green CVD see the world differently. Their red and green photo sensing cells (cones) in the retina have more overlap than normal making them unable to see certain colours. Reds and greens often look the same and appear to be muddy brown in colour.
EnChroma lenses use a unique patent-pending technology called ‘multi notch’ filtering, cutting our specific wavelengths of light. The lenses attempt to separate the overlapping red and green cone sensitivities, helping improve vision for people who have difficulty seeing the difference between reds and greens.
Capital Vision Care carries a full selection of prescription and non-prescription EnChroma lenses. Book an eye exam with one of our optometrists to see if EnChroma is right for you.