SEP 21, 2017 2:54 PM PDT

What It's Like To Be Color Blind

WRITTEN BY: Xuan Pham

Color blindness or color vision deficiency affects people's perception of colors. The condition often caused by defects in the color sensing cones in the eye. The most common form of color blindness is red-green, followed by blue-yellow. Some people can also have a complete absence of color vision, although this is very rare.

If you ask around, chances are you'll find that color blindness affects more males than females. In fact, the disease affects about 1 in 12 men, and about 1 in 200 women worldwide. The large discrepancy in disease occurrence between the sexes is due to the location of genes associated with color blindness. These are located on the X chromosome, of which males only have one. Thus, while females can compensate with normal gene copies on the second X chromosome as carriers, males unfortunate enough to inherit a bad copy of these genes are stuck with color blindness.

Although there is no cure for color blindness, most affected individuals can adapt and are able to have a normal lifestyle with some minor adjustments. Watch the video to learn how colorblind people see the world.
About the Author
I am a human geneticist, passionate about telling stories to make science more engaging and approachable. Find more of my writing at the Hopkins BioMedical Odyssey blog and at TheGeneTwist.com.
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