EnChroma lenses are engineered using a revolutionary lens technology developed in the early 2000’s by a glass scientist and UC Berkeley educated mathematician. What goes into developing the one-of-a-kind technology that enables people with colour vision deficiency to see colours they only previously imagined? Let’s start with a few facts about how we process colour vision in the eye.

What is Normal Colour Vision?

Normal colour vision occurs when white light, which contains within it all the colours of the rainbow, enters the eye. This light activates three kinds of photopigments, one in each of the three photoreceptors sensitive to different parts of the visible spectrum: blue, green and red.

Normal colour vision to colour deficient vision.

What is Colour Blindness?

Most types of colour blindness occur when there is an excessive overlap of the M (green) and L (red) colour cones in the eye, causing distinct hues to become indistinguishable. As a result, the number of shades of colour a typical colour blind person can see may be reduced by as much as 90%.

The Science Behind EnChroma Lens Technology

EnChroma develops optical lens technology that selectively filters out wavelengths of light at the precise point where this confusion or excessive overlap of colour sensitivity occurs. The M and L cones are altered in such a way that there is a greater amount of difference in colour discrimination along the so-called “confusion line” for that individual.

Our lens technology increases contrast between the red and green colour signals, alleviating symptoms of colour blindness for a richer experience of the world. With the application of science, optics, mathematics and more than 10 years of clinical research, EnChroma continues to advance the field of colour vision research and bring new products to market that solve unique colour deficiency issues. Learn more about the accidental discovery of this revolutionary lens technology.

Our lens technology increases contrast between the red and green colour signals, alleviating symptoms of colour blindness for a richer experience of the world.

Our lens technology increases contrast between the red and green colour signals, alleviating symptoms of colour blindness for a richer experience of the world.

Will EnChroma Colour Blind Glasses Work for Me?

Colour blindness is not a singular condition. It encompasses a range of conditions, from mild to severe, that can cause each person to see colour differently. EnChroma glasses are designed to improve colour vision of people with forms of anomalous trichromacy, which are estimated to comprise four out of five cases of colour blindness. The most common types are Protanomaly and Deuteranomaly, which are forms of partial red-green colour blindness. In the most extreme cases, the complete absence of one of the cone photopigments, called Protanopia or Deuteranopia, are considered dichromats who may see limited results due to the complete inability to see red and green colour differences. Reduced colour discrimination of shades of blue and yellow is called Tritanomaly, or Tritanopia which is not a type of what is commonly referred to as red-green colour blindness, but is also a form of colour vision deficiency. EnChroma glasses are designed to address forms of red-green colour blindness and are not intended to assist the vision of people with Tritan-type deficiency. Fortunately, most cases of colour blindness respond well to EnChroma spectral lens technology, enabling the perception of bright, vibrant colour. Learn more about types of colour blindness.

Will EnChroma Colour Blind Glasses Work for Me?

Colour blindness is not a singular condition. It encompasses a range of conditions, from mild to severe, that can cause each person to see colour differently. EnChroma glasses are designed to improve colour vision of people with forms of anomalous trichromacy, which are estimated to comprise four out of five cases of colour blindness. The most common types are Protanomaly and Deuteranomaly, which are forms of partial red-green colour blindness. In the most extreme cases, the complete absence of one of the cone photopigments, called Protanopia or Deuteranopia, are considered dichromats who may see limited results due to the complete inability to see red and green colour differences. Reduced colour discrimination of shades of blue and yellow is called Tritanomaly, or Tritanopia which is not a type of what is commonly referred to as red-green colour blindness, but is also a form of colour vision deficiency. EnChroma glasses are designed to address forms of red-green colour blindness and are not intended to assist the vision of people with Tritan-type deficiency. Fortunately, most cases of colour blindness respond well to EnChroma spectral lens technology, enabling the perception of bright, vibrant colour. Learn more about types of colour blindness.

Our outdoor lenses in bright sunlight are designed to provide the maximum colour impact. See our Lens Guide for more details.

Take the #1 Online Colour Blind Test in 2 Minutes

To find out if you are colour blind--and what type and severity of colour vision deficiency--take our brief EnChroma Colour Blindness Test. It is one of a kind proprietary screening test that takes just 2 minutes to help you determine if you have normal colour vision or if you are colour blind. It was the first test of its kind to also determine the type and level of severity of colour blindness to help you choose the right EnChroma lens for you.

Try on EnChroma Glasses In Person

If you would like to try the glasses, you can take advantage of our 60 day full money back trial guarantee. Many people find it takes several days to allow the brain and visual perception to fully adapt. If you are not satisfied, you can return them for a full refund. You can also consult with a qualified eye care professional and try EnChroma glasses in person at one of our many Authorised Retailer locations around the world.