![]() Protanopia causes red to appear black, and shades of orange and green to appear yellow. These two types of CVD cause red and green to be indistinguishable. This form of color blindness is also mild and doesn't interfere with daily activities. This CVD makes red, orange and yellow appear more green and less bright. ![]() This type of color blindness is usually mild and does not typically interfere with everyday activities. The most common type of red-green CVD, this type makes green and yellow appear more red. There are three types of red-green color blindness, including: 2 Red-green color blindness is the most common type of genetic color blindness and causes people with this type of CVD to confuse red, green, purple, blue and orange. There are different types of color blindness that cause different difficulties in discerning between colors, including red-green, blue-yellow and monochromacy. In the U.S., color blindness is a disability covered by the Americans with Disabilities Act (ADA) and requires employers to make reasonable accommodations for color-blind employees. 1Ĭolor blindness is most commonly a genetic condition inherited at birth, but CVD can also result from disease, the use of certain medications, trauma 4 to the eye or brain or aging. An estimated 300 million people worldwide are affected by color blindness, specifically 1 in 12 men and 1 in 200 women. Color blindness, or color vision deficiency (CVD), is a fairly common condition that makes it difficult to distinguish between certain colors. ![]()
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