Color Blindness What is It ?


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Color blindness results when one or more of the 3 cone systems is not functioning properly or at all.

Some affected individuals are unable to detect any color and the life they see is monochrome.

It's as if these individuals constantly view black and white movies.

Called monochromacy, this is the rarest form of color defect.

Dichromacy (red-green defects) of which there are 3 different types and anomalous trichromacy (blue-yellow) are more common.

The pigments inside each of the 3 cone cells react and respond differently as each absorbs light.

Each pigment processes a different wavelength: short, medium and long.

In a normal eye, this interaction and overlap between the cones, pigments and the amount of light each absorbs as the eye processes various images is what makes it possible to create the wide spectrum of color that most individuals are able to view.

Symptoms of Color Blindness

The main symptom of this is an inability to distinguish and/or correctly identify colors, particularly reds and greens and blues and yellows.

Who is at risk?

In the majority of cases, this is hereditary, something that runs in the family.

However, this can also develop as the result of damage to the optic nerve, the eye (specifically The Retina) and even the brain.

In a few instances, this eye condition has been traced back to chemical exposure including exposure to medicines and poisons.

Interestingly, it is more prevalent in men than women.

Age is also a factor in partial color vision blindness.

As the eyes ages, the lens tends to become darker which translates into images taking on a darker hue.

Early detection/treatment

It is very easy to detect with Pseudoisochromatic Plate tests.

The plates contain colored dots, with the background dots being one color.

Another dot color forms the image of a number.

Someone with normal color vision will be able to distinguish the number whereas someone with a color defect cannot discern the pattern that has been created using the different colored dots.

Color blindness that is inherited cannot be 'cured' because pigments are lacking.

In cases of acquired color blindness, vision may be corrected if the underlying problem can be treated.

Once the type of color vision blindness has been determined, an affected individual's only option is to rely on visual aids to help 'see' better.

Specially Colored Contact Lenses or glasses can help compensate for the inability to distinguish certain colors, but cannot restore 'normal' color capacity.

Affected individuals are generally capable of developing their own methods for accommodating their eye condition, and with the help of others, they make modifications to their environments to ensure their safety.


Learn which eye vitamins naturally improve eye health. The Rebuild Your Vision Ocu-Plus Formula was designed to improve vision and eye health, and help people with Macular Degeneration, Glaucoma, and Cataracts.

Learn which eye vitamins naturally improve eye health. The Rebuild Your Vision Ocu-Plus Formula was designed to improve vision and eye health, and help people with Macular Degeneration, Glaucoma, and Cataracts.
Learn which eye vitamins naturally improve eye health. The Rebuild Your Vision Ocu-Plus Formula was designed to improve vision and eye health, and help people with Macular Degeneration, Glaucoma, and Cataracts.



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