May I ask the so called color weak compatriots, what are the inconveniences in daily life 100

Hehe, friend, nothing! Don't take this too seriously, "color weakness" is not uncommon in the population, especially the proportion of men is much higher than that of women! We have checked out a lot of them in the college entrance examination!

None of them knew they were "weak in color" until then, as you said: except when they read the booklet, they felt different, and all the time they were the same!!

Color blindness has little to no color discrimination; Color weakness is not particularly sensitive to color, so it would be nice to spend a little more time.

I don't think there's anything wrong with the color weakness you mentioned, it's just that it's not easy to distinguish between some similar colors.

Causes of color weakness:1Congenital.

It is mostly recessively inherited, such as the father has color blindness, which can be passed on from daughter to grandson. The reason is mainly due to the lack of three substances that sense color in the cone cells on the retina. If there is a lack of red color-sensitive substances, red color blindness occurs; In the absence of green color-sensitive substances, green blindness is formed.

2.Acquired. Various lesions of the eye, such as refractive interstitium, retinal cells, optic nerve, and optic center, can cause color blindness and color deficiency, among which color deficiency is the majority.

To cure acquired color vision disorder, the premise is to cure the eye disease first.

Color deficiency is the difficulty in distinguishing the most colors, red-green color blindness is the most common, color deficiency is not as serious as color blindness, and most of the most common is caused by genetic causes. Most people with color weakness are not much different from what they see in their daily lives. You can eat more foods that are good for your eyes, such as lean meat, poultry, animal offal, fish and shrimp, milk, eggs, beans, etc., which are rich in protein, and protein is the main component of cells, and tissue repair and renewal need to be constantly replenished.

Generally what we call color weakness refers to the ability to identify red and green under certain conditions, the red and green alone can be distinguished, that is to say, there is no problem with the traffic light, of course, there may be a specific light under the more difficult to identify the situation, the difference in life is not very big, basically there is no difference and will not be affected, some of the fixed industries will have obstacles, such as the color ring resistance in the electronics industry, the distinction of various different color wires, etc., color weakness and color blindness are congenital inheritance, And there are more men than women!

The difference between color weakness and normal people to see color is that the ability to distinguish colors is weakened, the more common ones are red weak (a) and green weak (b), blue weak is extremely rare, and the color is weak, although you can see the colors seen by normal people.

However, the ability to recognize colors is slow or poor, and in low light, some people are almost color blind or show color vision fatigue, and color blindness and total color blindness are mostly caused by congenital factors.

Congenital color blindness or total color blindness is a hereditary disease, related to gender, clinical surveys show that 4 9 men and only 0 18 women have color blindness, and the number of male patients is much higher than that of women.

This is because the color blindness gene is present on the X chromosome of the sex chromosome and is passed on in a sex-related recessive way, with males usually colorblind and females being normal-looking carriers of the colorblindness gene, so males are more colorblind than females.

Generally what we call color weakness refers to the ability to identify red and green under certain conditions, the red and green alone can be distinguished, that is to say, there is no problem with the traffic light, of course, there may be a specific light under the more difficult to identify the situation, the difference in life is not very big, basically there is no difference and will not be affected, some of the fixed industries will have obstacles, such as the color ring resistance in the electronics industry, the distinction of various different color wires, etc., color weakness and color blindness are congenital inheritance, And there are more men than women!

Well, that's generally the case, and then it's not special, though.

1. Since color blindness and color deficiency are hereditary diseases that can be passed on to offspring, it is an effective means of prevention to avoid marriage between close relatives and investigate the genetic history of the other party's family before marriage, and to take measures to reduce the birth rate of colorblind offspring.

2. According to the "Regulations on the Application and Use of Motor Vehicle Driver's License" for the physical condition of the applicant for the driver's license, the applicant's color discrimination cannot be red-green blindness, and there is no limit to the red-green weakness. The United States, Japan, Europe and most other countries have liberalized the requirements for color weakness in small cars.

3. Color deficiency is mainly due to low color discrimination function, which is lighter than color blindness, and is also divided into weak red and weak green. People with color weakness can see colors seen by normal people, but their ability to recognize colors is slow or poor.

Color blindness is divided into total color blindness and partial color blindness (red color blindness, green color blindness, blue-yellow color blindness, etc.). Color weakness includes panchromatic weakness and partial color weakness (red, green, blue-yellow, etc.).

1. Total color blindness.

It is a complete cone cell dysfunction, as opposed to night blindness (rod cell dysfunction), in which patients prefer darkness and photophobia, and present with day blindness. There is only light and dark, but there is no difference in color, and the red is dark and the blue is bright. In addition, there are symptoms such as poor vision, amblyopia, central scotoma, oscillating nystagmus, etc.

It is the most severe form of color vision disorder and is less common.

2. Red color blindness.

First color blindness. Patients are predominantly unable to distinguish red from dark green, blue from purplish-red, and purple. Green is often seen as yellow, purple as blue, and green and blue as white.

3. Green blindness.

Also known as second color blindness, people cannot distinguish between pale green and dark red, purple and cyan blue, purple and gray, and perceive green as gray or dark black. Red and green color blindness are collectively referred to as red-green color blindness, which is more common. Color blindness is generally referred to as red-green color blindness.

4. Blue-yellow blindness.

Also known as the third color blindness. Patients are confused with blue and yellow, and red and green are discernible and rare.

5. The whole color is weak.

It is also known as red-green-blue-yellow weak. The degree of color vision impairment is lower than that of total color blindness, and there are no abnormalities in visual acuity or other complications of total color blindness. It can distinguish when the color of the object is dark and vivid; If the color is light and not saturated, it is difficult to distinguish, and it is rare.

6. Some colors are weak.

There are weak red (weak first color), weak green (weak second color) and weak blue-yellow (weak third color), among which weak red and green are more common, patients have poor sensitivity to red and green, and their color discrimination ability is close to red-green blindness when lighting is poor; However, when the color of the substance is deep, vivid and the illumination is good, its color discrimination ability is close to normal.

Don't take those guys to their senses.

If the color is not weak, it will not have any direct impact on life, and everything can be done normally and independently (if it is serious, it will be said separately).

However, other people's understanding of color deficiency often leads to discrimination, and many people do not even know that color deficiency can basically see all colors. You will encounter the following: you can't get a driver's license, you can't be a soldier, you can't take a lot of majors, it's very troublesome.

I just found out when I was more than 10 years old that I couldn't study chemistry in China, and I couldn't do a lot of art majors. I'm going to go abroad soon, and I've heard that the United States is a little friendly in this regard, and if it's much better, it won't come back.

Traffic lights can sometimes be confusing.

Color deficiency refers to the defect of color vision, which can recognize color but has low sensitivity and is called color deficiency.

Color deficiency is a mild color vision abnormality that is more common in men. People with color deficiency have poor color discrimination and can only see color when it is saturated. The most common ones are red weak (type A) and green weak (type B), and blue weak is rare.

Diagnosis of color deficiency is based on:

1.Have a family history of heredity.

2.Clinical manifestations with poor color discrimination.

3.In the case of a sham homochromatic chart, the patient has difficulty identifying and may not be able to read it incorrectly.

4.The colored harness test shows that the patient is unable to pick out a wire bundle of the same color as the standard wire harness.

5.The color mixture tester can determine whether the red-green sensation is abnormal.

The above content reference: Encyclopedia - color weakness.

Most patients with color deficiency are caused by congenital heredity, and there is no effective method, but patients can improve their perception of color by wearing color deficiency correction lenses, which will be specially coated to achieve the effect of correcting color disorders. So, what is color weakness? What are the types of color weakness?

Let's find out with us!

What is color weakness

Color weakness is a kind of color vision disease caused by various factors of state change, the patient's ability to recognize color is reduced, although he can see the color that a normal person can see, but the ability to distinguish color will become slow, in the case of low light, sometimes can not distinguish the color, at this time it is closer to color blindness, when the light is obvious or the color of the object is bright, can distinguish the color normally, close to the normal person.

What are the types of color weakness?

1. The red color is weak

Weak ability to distinguish red, orange, red, yellow look like green, and the color looks darker.

2. Weak blue-yellow

Patients perceive blue as green and sail yellow as light gray or purple, which is rare.

3. Weak green

This type is the most common with weak discrimination of green, yellow and green look like red, and cannot distinguish between blue and purple.

4. The whole color is weak

The patient's ability to distinguish all colors is reduced, and there is no abnormality in visual acuity, and compared with panchromatopsis, patients with panchromatic weakness have no ocular symptoms such as photophobia and nystagmus, which is less common in clinical practice.

What is the difference between color deficiency and color blindness

Both color blindness and color deficiency can have an impact on the patient's daily life, and the difference between the two is the degree of recognition disorder. The former is mainly manifested as a complete inability to distinguish one or more colors, while patients with color deficiency are only less able to distinguish one or more colors, and can recognize and distinguish all colors, but it takes longer. For example, the specific pattern on the color blind book can be correctly recognized by normal people within 5s, and the color deficiency patients will be recognized after a period of time, while the color blind patients cannot recognize it at all, so the two can be easily identified according to this nature.