Color Blindness Test

Most people view the world in color, while others are limited in the colors they see.  Those with limited color vision suffer from three main types of color vision defects: Red-green color vision, which occurs in more men than women, blue-yellow color vision, and a complete absence of color vision altogether.

Absence of color vision, called achromatopsia, is relatively uncommon. People with complete achromatopsia perceive no color at all. They see only black, white, and shades of gray. A milder form of this condition, incomplete achromatopsia, may allow some color discrimination. People with achromatopsia almost always have additional problems with vision including reduced visual acuity, increased sensitivity to light (photophobia), and small involuntary eye movements called nystagmus.

Colorblindness is typically genetic and offers no treatment.  People with varying degrees of color blindness find ways to cope and incorporate colorblindness into their everyday lives.

Color Deficiency

Red-green color vision is the most common form of color vision deficiency. Red-green color deficiency affects males more often than females. Among those with Northern European ancestry, color vision deficiency occurs in about 8 percent of males vs. 0.5 percent of females. Studies indicate that red-green color deficiency has a lower incidence in other populations.

Blue-yellow color vision deficiency affects males and females equally and occurs in fewer than 1 in 10,000 people worldwide vs. complete achromatopsia, which affects an estimated 1 in 30,000 people. Achromatopsia is more common among Pingelapese islanders, living on the Eastern Caroline Islands of Micronesia. Five to ten percent of Pengelapese have a total absence of color vision.

Color Blindness Tests

Free color blind tests are available on the Internet, as well as those that cost upwards of $99 and more. The free color blind tests will be more than adequate in revealing the extent of your colorblindness. Quality search terms to use when researching color blindness on the Interest or looking for color blindness tests include: Color blindness test, Color blindness tests, color vision deficiency, color deficiency, online color blind test, color vision testing, color vision testing made easy and color blind tests—to name a few.*

*Statements contained herein have not been reviewed by the FDA (Food and Drug Administration). Yourlens.com does not provide medical advice. User assumes all liability for content. Talk to your licensed eye care professional or eye doctor regarding vision correction, eye or vision disorders, eye discomfort, contact lens types and materials and for general information on eye care products and eye health.