How do we see different colors, and how does color blindness come about?

Color blindness is the inability to distinguish colors, and you need to go through a physical examination to see the booklet dedicated to testing color discrimination, which has specific criteria for color blindness, color weakness, and normal color discrimination. Therefore, color blindness does not necessarily mean that you cannot see any color.

What does the world of color blindness look like? What other colors does the doctor disclose?

Acquired color blindness is not inheritedIt is generally caused by diseases of the retina, optic nerve and other places, and mental diseases may also cause transient color blindness. In fact, many people have color blindness, but we are not very clear for the time being, you can choose to go to the Internet to find those test charts to test, so that you can preliminarily determine whether you are color blind or color weak.

The world in the eyes of color blindness is different from the colors we see。Mild color blindness can be perceived, severe color blindness is the world in black and white. They can't distinguish colors because of abnormalities in their visual cells.

Mild color blindness can misdistinguish colors, and in severe cases, all colors cannot be distinguished, which is called total color blindness because it cannot distinguish colors at all. Total color blindnessThe colorful world in my eyes is dark, just like watching a black-and-white movie, there is only light and dark, but there is no chromatic aberration. This is the most severe form of color vision disorder, but it is very rare in patients.

The most common is red-green color blindness. Poor color discrimination is called color weakness. It's not easy to distinguish between color blindness and color deficiency, it's just a matter of severity.

Studies have found that color blindness and color deficiency are congenitally inherited, and acquired color vision abnormalities are relatively rare unless there are some pathological changes in the retina or optic nerve. Red-green color blindness is thought to be determined by two pairs of genes on the X chromosome. Females have two X chromosomes, so they need a pair of pathogenic alleles to show the abnormality.

If only one X chromosome has the color blindness gene, she will not develop color blindness, but will be a gene carrier that can be passed on to her offspring. ThereforeThe incidence of color blindness is higher in men than in women.

At present, there is no ** method for congenital color blindness. Although this disease does not affect human health, patients will have a lot of inconveniences at workThe term "color blindness" gives people a misconception that color blindness cannot see any external colors, but in fact, it is the visual cells that cannot distinguish a certain wavelength of light, resulting in the perception of a certain color that is different from that of normal people, except for total color blindness, the world in the eyes of ordinary color blind people is still colored。As a result, many countries around the world have abandoned the term "color blindness" and replaced it with "abnormal color vision".

What does the world of color blindness look like? Many people get it all wrong, and it's very distressing to read it.

It's similar to ordinary people, but there are so many fewer colors, and there may be problems with their viewing angle film.

They don't feel the colors, they see the world as you see it with one eye open and one eye closed.

Color blindness, also known as color vision disorder, refers to a lack of ability to distinguish one or several colors due to abnormal or incomplete photosensitive pigment in the cone cells of the retina.

Red-green color blindness is thought to be determined by two pairs of genes on the X chromosome. Because these two pairs of genes are closely related on the X chromosome, they are often expressed through genetic symbols. Color blindness is transmitted through X-linked recessive inheritance.

In the eyes of people who are colorblind, the world is black and white, and their perspective film cannot see other colors.

The world in the eyes of color blindness is that it is impossible to see other colors clearly, and there are only two colors in it, black and white, just because of the defect of the communication problem.

Color blindness is not the complete inability to see colors, just the blurred vision between red and green.

Color blindness means that he can distinguish fewer colors than a normal person, and if a normal person can distinguish seven colors, he may only be able to see two or three colors in the eyes of color blindness. For example, at the most common traffic lights, people with color blindness should look like one color or two colors, and if color blindness is simply confusing colors, it will not affect the ability to distinguish colors. For example, if the traffic light is three colors in the eyes of color blindness, then there is no mistake or mistake, because there is already a difference, there is no cognitive impairment, even if you see different colors from others, as long as the number of cognitive colors is the same as the number of normal people, it will not affect your color differentiation, even if everyone sees different colors, it will not affect the recognition of colors.

The main thing is some physical defects, and they can't be blamed for that.

You all say that your eyes are black and white, and I want to ask you if you are color blind? You know what to talk about, just talk nonsense.

I haven't had color blindness, I don't know, it is said that the so-called color blindness is not all color indistinguishable, but only a few kinds.

In fact, they can still distinguish the color clearly, mainly because they can't express what color it is.