What is color blindness?
#health Color blindness, as the Encyclopaedia Britannica explains, is the inability to distinguish one or more of the three colors of our cones: red, green or blue.
This can happen for two reasons. First, it happens because of certain side effects of some drugs, such as antimalarial medicine, or exposure to chemicals, such as some organic solvents or injury. However, it usually occurs due to mutations in certain genes that provide the instructions for generating opsins in the cones. These mutations can also be inherited.
Types of Color Blindness:
- Trichromatism
First we have abnormal trichromatism. This is the mildest form of visual impairment of color. People with this type of color blindness have all three types of cones, but they don't work the same way they do in a person without color blindness. As Simunovic explains, it is important to add that this type of color blindness occurs in various degrees. For some anomalous trichromatics, their vision will be almost normal.
Anomalous trichromatism can be subdivided into three: protanomaly, deuteranomaly and tritanomaly. Protanomaly affects red cones, causing people with this condition to see red things greener and less bright. Deuteranomaly, which is a common form of color blindness, affects green cones, which makes green things look redder. Finally, we have the tritanomaly, which affects blue cones. This makes it difficult to differentiate between blue and green or between yellow and red.
- Dichromatism
The next form of color blindness, more severe than the previous one, is dichromatism. People with dichromatism have only two types of cones on the retina, so they have a reduced vision of colors.
Dichromatism can be divided into three types. Protanopia, which happens when the person does not have functional red cones, deuteranopia - when he does not have functional green cones, and tritanopia - when he does not have functional blue cones.
Protanopia and deuteranopia cause one to be unable to fully differentiate between red and green. On the other hand, tritanopia makes the person unable to differentiate between blue and green, purple and red and yellow and pink. It also makes the colors less bright.
- Monochromatism
Finally, the most severe form of color blindness is monochromatism, since any color discrimination is completely absent. In these cases, the person has only one type of cones: either blue, or green or red.
How is color blindness diagnosed?
To diagnose color blindness, the ophthalmologist will do a simple test that shows whether you can correctly discriminate colors. There are different tests to diagnose this condition. In fact, one can easily find them on the Internet and perform them in a short period of time.
Do you know anyone with color blindness?
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- Comments (4)
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Alfred
2 years ago
I read more about this when watching the tests, it is useful to know more about it to have knowledge of the jump itself thank you very much
Alberto
2 years ago
It still surprises me that this is a different range of colors, something that can be dangerous in different areas such as seeing a traffic light, the good thing is that people learn to live with it
Freli
2 years ago
I knew more about the information of the jump itself, this can also be presented in the fact that I cannot see any kind of color.
Rasher
2 years ago
It is a somewhat rare condition to suffer, yet there is a probability, I read that some lenses were invented to help with it, even though it cannot be used very often.
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