Statistics Of Color Blindness
Most of the time color blindness makes it hard to tell the difference between certain colors.
Statistics of color blindness. Read about the types of color blindness and its symptoms risk factors causes diagnosis and treatment. 8 of men 1 in 12 men and 0 5 of women 1 in 200 women with northern european ancestry have a common form of red green color deficiency. In many individuals the condition is mild and a person is unaware there is a problem with their color.
The term incidence of color blindness refers to the annual diagnosis rate or the number of new cases of color blindness diagnosed each year. It s estimated that there are 300 million color blind people in the world. However problems are generally minor and most color blind people adapt.
In britain this means that there are approximately 3 million colour blind people about 4 5 of the entire population most of whom are male. 1 in 12 men is color blind while only 1 in 200 women have the condition. It can impair such tasks as selecting ripe fruit choosing clothing and reading traffic lights.
Genetics of color blindness. A short lived disease like flu can have high annual incidence but low prevalence but a life long disease like diabetes has a low annual incidence but high prevalence. Unlike red green color blindness the chance of having blue color blindness is equal in both men and women as the gene is found on a different chromosome chromosome 7.
Hence these two statistics types can differ. Among all color blind people 99 are suffering from red green color blindness. Color blindness may make some educational activities more difficult.
Blindness as defined by the u s. Hence these two statistics types can differ. If you have color blindness it means you see colors differently than most people.
Blindness is defined by u s. Definition 20 200 best corrected visual acuity in the better seeing eye and the world health organization standard of 20 400. Color blindness or color vision deficiency affects about 2 7 million people in britain.
Colour color blindness colour vision deficiency or cvd affects approximately 1 in 12 men 8 and 1 in 200 women in the world. Color blindness is more common than you might think. Color blindness color vision deficiency is the decreased ability to see color or differences in color.
The next most common is blue yellow color blindness. Blue color blindness often referred to as blue yellow color blindness is extremely rare so rare that only 5 of color blind people suffer from it. A short disease like flu can have high annual incidence but low prevalence but a life long disease like diabetes has a low annual incidence but high prevalence.
