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 color vision deficiency to see colors they only previously imagined? Let’s start with a few facts about how we process color vision in the eye.

EnChroma lenses are engineered using a revolutionary lens technology developed through a decade long research collaboration between a Ph.D glass scientist and UC Berkeley-educated mathematician. What goes into developing the one-of-a-kind technology that enables people with color vision deficiency to see colors they only previously imagined? Let’s start with a few facts about how we process color vision in the eye.

What is Normal Color Vision?

Normal color vision occurs when white light, which contains within it all the colors 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.

What is Normal Color Vision?

Normal color vision occurs when white light, which contains within it all the colors 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 color vision to color deficient vision.
Normal color vision to
color deficient vision.

What is Color Blindness?

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

What is Color Blindness?

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

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 color sensitivity occurs. The M and L cones are altered in such a way that there is a greater amount of difference in color discrimination along the so-called “confusion line” for that individual. 

The Science Behind EnChroma Lens Technology

In the eye of a person with color blindness, the M- and/or L-cones respond to light differently - due to a genetic substitution that modifies their chemical structure, the cone response functions are more overlapping than normal. The result of the overlap is a reduced ability to discriminate between certain shades of colors organized along the so-called “confusion line” for that individual. EnChroma develops optical lens technology that selectively filters out wavelengths of light at the precise point where this confusion or excessive overlap of color sensitivity occurs, which effectively increases the separation between the M- and L-cone signals.

Our lens technology increases contrast between the red and green color signals, alleviating symptoms of color 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 color vision research and bring new products to market that solve unique color deficiency issues. Learn more about the accidental discovery of this revolutionary lens technology.

Our lens technology increases contrast between the red and green color signals, alleviating symptoms of color 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 color vision research and bring new products to market that solve unique color deficiency issues. Learn more about the accidental discovery of this revolutionary lens technology.

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

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

Will EnChroma Color Blind Glasses Work for Me?

Color blindness is not a singular condition. It encompasses a range of conditions, from mild to severe, that can cause each person to see color differently. EnChroma glasses are designed to improve color vision of people with forms of anomalous trichromacy, which are estimated to comprise four out of five cases of color blindness. The most common types are Protanomaly and Deuteranomaly, which are forms of partial red-green color 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 color differences. Reduced color discrimination of shades of blue and yellow is called Tritanomaly, which is not typically considered a form of color blindness. Fortunately, most cases of color blindness respond well to EnChroma spectral lens technology, enabling the perception of bright, vibrant color. Learn more about types of color blindness.

Will EnChroma Color Blind Glasses Work for Me?

Color blindness is not a singular condition. It encompasses a range of conditions, from mild to severe, that can cause each person to see color differently. EnChroma glasses are designed to improve color vision of people with forms of anomalous trichromacy, which are estimated to comprise four out of five cases of color blindness. The most common types are Protanomaly and Deuteranomaly, which are forms of partial red-green color 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 color differences. Reduced color discrimination of shades of blue and yellow is called Tritanomaly, which is not typically considered a form of color blindness. Fortunately, most cases of color blindness respond well to EnChroma spectral lens technology, enabling the perception of bright, vibrant color. Learn more about types of color blindness.

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

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

Take the #1 Online Color Blind Test in 2 Minutes

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

Take the #1 Online Color Blind Test in 2 Minutes

To find out if you are color blind--and what type and severity of color vision deficiency--take our brief EnChroma Color Blindness Test. It is one of a kind proprietary screening test that takes just 2 minutes to help you determine if you have normal color vision or if you are color blind. It was the first test of its kind to also determine the type and level of severity of color 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 (free returns within US). You can also consult with a qualified eye care professional and try EnChroma glasses in person at one of our many Authorized Retailer locations around the world.

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 (free returns within US). You can also consult with a qualified eye care professional and try EnChroma glasses in person at one of our many Authorized Retailer locations around the world.