A person s normal vision is more or less normal, and what is a normal person s vision

A person's normal visual acuity is related to age, and the visual acuity is normal after the age of six, and the visual acuity is considered normal within the age of six.

The normal visual acuity level of adults should at least be reached, and some of the better visual acuity can reach the age of minors, and the vision of minors is a process of continuous development from farsightedness to emmetropia, once the visual acuity is lower than the normal level, it is necessary to intervene as soon as possible. From infancy to adulthood, human vision is a constant development.

Normal vision above is considered normal.

1. Don't rub your eyes with your hands.

If you don't wash your hands, you can rub your eyes at will, which can easily lead to eye diseases, because after your hands touch many things, it is easy to cause bacteria and viruses to remain, and if you come into contact with your eyes, it is easy to cause eye diseases.

2. Supplement proper nutrition.

Lutein, which is generally stored in the retina of the eye, can help the eyes block the damage of blue light from the outside world, and at the same time avoid damage to the macula of the retina, which is rich in lutein in spinach, onions, asparagus, and rape.

3. Exercise more.

Exercise helps us reduce stress, regulate our own blood sugar, and at the same time increase our blood flow, improve the body's blood circulation, help the small blood vessels in our eyes to remove harmful substances deposited, half an hour a day, good health, eye health.

4. Get enough sleep.

If the human body wants to be in a good state every day, it is essential to have enough sleep every day, and the same is true for the eyes, we have a lot of time with our eyes every day, especially some working people, student parties, etc., when the eyes are used frequently, a short rest can also help the eyes relieve fatigue.

5. Vision nutrients.

Take vision nutrients regularly to enhance eye nutrition and prevent myopia. It is recommended to take Joyeye Vision Nutrients, one sachet twice a day, with warm water, and insist on taking it for a period of time. That's how my colleague's child took it, and his eyesight has always been good.

The normal power of a person's eyes is generally greater than or equal to that. If the vision is lower, it is okay to wear glasses if you can reach it and above. Of course, the standard visual acuity is also lower than if you wear glasses, and a detailed eye examination is recommended.

Various factors such as vision loss due to other eye diseases, or vision loss due to amblyopia, are ruled out.

Generally, normal people's vision is above, even if they are nearsighted, farsighted, and astigmatism, their vision is above after wearing appropriate glasses. Vision fluctuates, and if you overuse your eyes, don't get rest, or have an eye disease, your vision will usually recover gradually. Take good care of your eyes, use them correctly, and have regular eye checks.

The average person's eyesight will be at or above, the normal vision of more than 5 years old should be reached, it is the previous standard, it is a very good distance vision, is now commonly used the new standard, quite the same as before, the best way to protect the eyesight is to see more far, more farsight training, such as playing badminton, kite flying, etc., to minimize long-term short-term viewing, such as close reading and writing, looking at the computer, etc., if it cannot be avoided, it is recommended to wait 40 minutes, see far away for 10 minutes. To prevent the problem of strabismus, in the case of children, reduce excessive fixation in one direction.

Don't look at the computer and TV and other monitors when you have nothing to do, don't lie down and read a book, read in direct sunlight, don't do a car, read a book while eating, play with your mobile phone, etc., and do eye exercises often ......You are pseudomyopia, the main protection will definitely be able to get better on your own Generally pseudomyopia, I also had this situation when I was in junior high school. After my dad found out, he bought me eye drops, drops before going to bed, and pay attention to eye hygiene, not to overuse eyes, pay attention to rest, and eat more carrots, which are all helpful. If you have myopia, you can't restore your original vision unless you go for an excimer laser, and you can only delay the deepening of your eyes by taking care of your eyes.

To effectively maintain your eyes, you can refer to the following two points:

1) Among the key points of vision care, the main thing is to "don't look at it for a long time" - watching TV, playing on the computer, etc., because there is radiation, so the time should not be too long. In addition, overuse of the eyes can cause eye fatigue and cause the refractive power of myopia patients to deepen. You can usually do more eye movements, such as:

Rotate up and down, looking left and right, to relax the eye muscles. Warm compresses are also effective and quickly eliminate eye fatigue. You can also rub the palms of both hands until hot, and then apply it to the eye area to promote blood circulation in the eye area.

2) In terms of diet, food supplements can be appropriately carried out: meat of pigs, cattle, sheep, chickens and other animals; sea cucumbers, yellow croaker, eels and other fish; pig liver, chicken liver and other animal livers; Others such as longan, lychee, carrot, celery, yam, sesame, wolfberry, chrysanthemum, cassia and so on. And eat less spicy foods such as onions, garlic, leeks, pepper, wine, and chili peppers.

As for surgery, LASIK is currently the mainstream surgery for refractive problems in China. It has relatively strict indications and contraindications, and surgery is generally not considered under 18 years old, and some doctors extend the scale to 20 years old.

LASIK is favored by doctors because of its light response after surgery, fast vision recovery (you can use your eyes immediately after surgery and return to normal vision after a few hours), and stable results, fast and convenient (you can move normally on the same day after surgery, without affecting your life and work).

However, as long as it is an operation, no matter how big or small, there is a certain risk, and theoretically the infection caused by improper treatment can seriously affect vision, but we have never seen a similar example in our hospital so far. In addition, irregular astigmatism and night glare may be common after surgery. Generally, over 18 years old, myopia within 1500 degrees, hyperopia within 600 degrees, astigmatism within 600 degrees, myopia in the past two years is stable, and those who have no eye lesions at this stage can consider surgery!

Is that okay?

1. Central vision: that is, the visual acuity determined by people usually looking at the eye chart, including distance vision and near vision. Patients with hyperopia present with better distance vision than near vision; The opposite is true for patients with myopia.

People with astigmatism have poor distance and near vision. When the near and distance visual acuity is above or above, the central visual acuity is normal.

2. Peripheral vision: When the eyes are fixed on a certain target, the range that can be seen in the non-fixation area is large or small, which is called peripheral vision, which is often referred to as "residual vision". The range of peripheral vision in a normal person is quite large, up to 90 degrees on both sides, 60 degrees above and 75 degrees below.

Patients with myopia and night blindness have poor peripheral vision, and some fundus diseases can also cause peripheral vision loss.

3. Stereopsis: Stereopsis is a kind of superlative vision, that is, on the basis of normal vision in the center of the two eyes, through the harmony of the two hemispheres of the brain, you can feel the distance relationship between objects in space. Some people have normal central vision but abnormal stereopsis, which is medically called stereopopia.

To prevent myopia, we must learn to use our eyes scientifically, read and write in a correct posture, keep the distance between our eyes and books about one square foot, and read books continuously for no more than one hour, and look at the distance or look at green plants every once in a while. Do more eye exercises during breaks, eat more carrots, apples, bananas, cuttlefish, eggs and other foods, and take a walk or exercise outdoors in your spare time.

Children under the age of 18 are myopic and can recover from timely treatment after myopia due to their strong adjustment of the eyeball. It is recommended to take Joy Vision Nutrients, myopia can recover quickly, and the younger the better. You only need to take one sachet twice a day, with warm water, and stick to it for a period of time.

Many people think that as long as the vision can reach 1 0 or more, it is considered normal. In fact, a visual acuity of 1 0 can only indicate that a person's partial vision is normal. Criteria for normal vision also include:

1. Central vision.

That is, people usually look at the visual acuity chart to determine the visual acuity, including distance vision (looking at the eye chart from 5 meters away) and near vision (looking at the eye chart at 30 centimeters). Patients with hyperopia present with better distance vision than near vision; The opposite is true for patients with myopia. Patients with astigmatism have poor distance and near vision, and when the distance and near vision reaches 0 9 or above, it means that their central vision is normal.

2. Peripheral vision.

When you gaze at a target, the range that can be seen from the non-fixation area is large or small, which is called peripheral vision, which is often referred to as "residual vision". Generally speaking, the range of peripheral vision of normal people is quite large, up to 90 degrees on both sides, 60 degrees above and 75 degrees below Patients with myopia and night blindness have poor peripheral vision, and some fundus diseases can also cause peripheral vision loss.

3. Stereoscopic vision.

Stereopsis is a kind of highest-level vision, that is, on the basis of the normal center of the two eyes, through the harmony of the two hemispheres of the brain, make yourself feel the distance relationship between objects in space Some people have normal central vision, but stereoscopic vision is abnormal, which is called stereoporopia in medicine.

In medicine, normal vision can only be counted if the central vision, peripheral vision, and stereophesis all meet physiological requirements.

is the best vision, and less than vision is myopia.

The normal human eye vision is above.

's vision can only indicate that part of the person's vision is normal. Strictly speaking, the criteria for normal vision also include central vision, peripheral vision, and stereopal vision.

We usually only check central vision, but medically, it can only be considered normal if central vision, peripheral vision, and stereophesis all meet physiological requirements.

Visual acuity refers to how far away an object can be seen under the premise of a 1-point perspective, regardless of the fractional eye chart, decimal eye chart, and logarithmic eye chart are all made according to this principle, and the decimal eye chart can be seen clearly under the perspective of 1 point, that is, the logarithmic eye chart is classified as normal vision. Everyone's minimum visual threshold is different, it depends on the density of each person's retinal pyramidal cells, when the density is higher, the visual threshold is higher, and the minimum viewing angle is smaller, so there is a decimal eye chart) or even higher visual acuity. Hence visual acuity is not the same as diopter.

Protect eyesight: 1. The time of close eye use should not be too long.

2. Read and write, play on the computer, and maintain correct posture.

3. Combination of cereals and grains, meat and vegetables.

Fourth, when reading and writing, the light should be moderate, not too strong or too dark, and the light should come from the left front, so as not to obstruct the vision of the hand.

5. Avoid reading while walking or reading in a walking car.

6. Actively participate in physical exercise to enhance physical fitness.

7. Insist on doing proper eye exercises.

8. Eat less candy and high-sugar foods.

9. Regularly go to the eye hospital to check the eyesight, and if it is found, it should be corrected in time to prevent the progression of myopia.