What instruments are used for vision correction in children?

The Chinese Academy of Sciences eye protection device has a good effect.

If there is a problem with vision that affects daily vision, then in addition to glasses correction, you should also pay attention to:

1. The time of close eye use should not be too long, every 40-50 minutes, you should take a little rest for 3-5 minutes, and look into the distance to relieve visual fatigue.

2. Read and write, play with the computer, maintain a correct posture, the height of the table and chair should be appropriate, and the distance between the eyes and the reading materials should be about 33 cm.

3. Mix whole grains, meat and vegetables, eat more vegetables and fruits, and don't eat partially. Lack of vitamins in food is prone to night blindness and dry eye disease, and lack of trace elements chromium and calcium in food makes it easy to suffer from myopia. In addition, it is also necessary to pay attention to regular supplementation of eye vision nutrients, not from the nutrients required by the eyes, enhance the anti-fatigue ability of the eyes, and better protect the eyesight.

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 shadow. The light should be soft, if it is incandescent, it should be between 25 and 40W, and it is not recommended to read in the sun. Because the intensity of light has a direct impact on pupil dilation, too strong light will increase the intensity of eye accommodation, aggravate the intensity of eye labor, and it is easy to cause myopia after a long time.

Generally, desktop lamps should be less than 40 watts.

5. Avoid reading while walking or reading in a walking car. Because the carriage is shaking, the body is shaking, and the distance between the eyes and the book cannot be fixed, the burden on the glasses will increase. Often, this is likely to lead to myopia.

6. Actively participate in physical exercise to enhance physical fitness. As the eyeball follows the target, the ciliary muscles continue to relax and contract, and the synergistic effect of the extraocular muscles can increase the blood perfusion of the eye, promote the metabolism of the eye, and thus reduce eye fatigue. Moreover, the quality of physical fitness is also closely related to the occurrence of myopia in children.

Malnourished and weak children are prone to myopia.

7. Insist on doing proper eye exercises. By massaging the acupuncture points around the eyes to enhance the blood circulation of the eye socket, improve neuronutrition, eliminate the excessive congestion in the eye, and achieve the purpose of relieving eye fatigue, it is conducive to the prevention and treatment of pseudomyopia in adolescents, and is a good way for adolescents to self-care their eyes.

8. Eat less candy and high-sugar foods. Too much sugar will produce a large amount of acidic substances in the blood, and the acid will combine with the salt in the body, especially calcium, resulting in a decrease in blood calcium, which will affect the toughness of the eye wall, make the eye axis easy to elongate, and promote the development of myopia.

Hello, after having myopia, you should supplement more vitamins A, B, calcium, chromium, zinc and other trace elements, and eat less candy and high-sugar foods. Dietary therapy is mainly to supplement the necessary nutrients of the ciliary muscle and sclera in the eye, enhance the muscle strength of the ciliary muscle, and help it restore its inherent function. Vitamins A, B1, B2, C, and E should be supplemented appropriately.

Vitamin-rich foods include eggs, milk, meat, fish, liver, and fresh vegetables and fruits. It is recommended to go to a professional eye examination.

Children with poor eyesight should go to a formal eye examination to achieve early detection and early detection. If it is myopia, don't blindly listen to some advertisements, pseudomyopia is very easy to treat in ophthalmology, and true myopia has not yet used accurate and effective instruments.

Myopia is very common in children, due to bad habits of eye use will cause myopia in children, children myopia is recommended to wear orthokeratology lenses to correct myopia. Orthokeratology lenses are suitable for medical treatment. As long as it is worn on the eyeball while sleeping, it will massage the eyeball flexibly, gradually make the corneal curvature change, flatten, and shorten the eye axis, thus effectively preventing the development of myopia, known as "the technology that can control and correct myopia while sleeping".

It is designed with an inverse geometry with multiple arcs on the inner surface. The resulting fluid dynamics change the corneal geometry to correct myopia. When you get up in the morning and take it off, your child's vision will return to its best condition, which is usually above.

Generally speaking, newborn children often have physiological hyperopia and physiological astigmatism, and the degree of hyperopia should continue to decrease as they grow older.

If you have farsightedness, it is best to dilate your pupil refraction, and if you are pseudomyopia, you can rely on the outside to make a slow adjustment. If it is true myopia, the eye axis cannot be adjusted, just like a person who has grown up, there is no way to get smaller, so he can only control it, or let the growth of the prescription become slower.

In addition to glasses, the most recognized method of prevention and control of myopia is OK lenses and low-concentration atropine visual training.

First of all, the ok mirror is not low, and it requires a high degree of cooperation from the child, after all, it is to put something in the child's eyes, which is still not very friendly to the younger baby.

Secondly, low-concentration atropine is not the mainstream program in China at present, the essence is to dilate the pupils and fully relax the ciliary muscle, but long-term use of children is prone to photophobia, and the risk of glaucoma.

Finally, visual training is actually with the help of some instruments, such as fire eye crystal E1, a smart instrument for myopia prevention, to carry out some visual training (involving visual accommodation training, visual sensitivity training, contrast training, etc.), mainly for 6-12 years old children with pseudomyopia below 200 degrees, if you insist on using it, it has a better effect.

One is excessive use of eyes, such as often watching TV or playing with mobile phones, which will cause damage to the baby's vision;

The second is congenital vision defects, if there are some defects in development during pregnancy, it will also affect the baby's vision;

The third is caused by diseases, some eye diseases will affect the baby's vision, so that the baby's vision declines.

When a child is found to be myopia, he or she should go to the hospital as soon as possible to check whether it is true myopia or pseudomyopia. If it is pseudomyopia, it can be restored to the original normal level through a certain amount of rest and appropriate vision exercise, eliminating ciliary muscle spasm, reducing eye fatigue, and at the same time combining some eye drops to restore the original normal vision. Now, the latest application in ophthalmology is in laser correction of myopia and other refractive error myopia surgery, the use of femtosecond laser can accurately open the molecular chain of eye tissue, to produce a more uniform and perfect corneal flap and corneal lens, so that myopia patients can get the best results after myopia surgery.

The femtosecond laser makes the corneal flap, and the whole process is completely controlled by a computer program, accurate to the micron level, and its precision is 100 times that of a metal layer knife. When femtosecond laser flap making, the flat flap technology can be used to ensure that the thickness of the flap is uniform and consistent, and the thickness, diameter, shape, position and width of the corneal flap can be flexibly set.

Femtosecond laser can be used to make ultra-thin corneal flaps below 90 microns, so femtosecond laser myopia surgery can be considered for patients who have not been able to undergo corneal refractive surgery before, such as patients with thin corneas and high myopia.

The above is an introduction to myopia laser correction surgery, I hope it can help you and enable you to make a more suitable decision. It is worth noting that laser correction surgery also requires some examinations before surgery, mainly to see if the patient is suitable for such a surgery. If you are really hesitant to make up your mind, you can also do a preoperative examination to see if you are really suitable for laser correction surgery.

There are currently three main methods used to correct refractive errors: wearing glasses, contact lenses, and laser surgery**. For children, it is safest to wear glasses to correct their vision.

In addition to physical correction, you can also supplement some trace elements that are beneficial to the eyes in your diet.

1. Calcium-containing food: dietary calcium deficiency will cause increased neuromuscular excitability in young children, so that the eye muscles are in a state of high tension, and it is easy to cause visual damage after a long time, so give children more calcium-containing foods, lean meat, milk, eggs, beans, fish and shrimp, kelp, vegetables, oranges, etc. are relatively rich in calcium.

2. Foods containing vitamin A: Foods containing vitamin A can prevent dryness and degeneration of the conjunctiva and cornea, and can prevent and "dry eye disease". Vitamin A also enhances the eye's ability to adapt to dark environments.

Foods rich in vitamin A include pork liver, chicken liver, egg yolk, milk, carrots, spinach, leeks, green peppers, red potatoes, oranges, apricots, persimmons, etc.

3. Foods containing vitamin C: Vitamin C is one of the components of the lens of the eyeball, and the lack of vitamin C can easily make the lens cloudy, resulting in cataracts. Give young children more foods containing vitamin C, such as various vegetables and fruits, among which green peppers, cucumbers, cauliflower, bok choy, fresh dates, raw pears and so on have the highest content.

4. Chromium-containing food: When the chromium content in the human body decreases, the effect of insulin is significantly reduced, which increases the osmotic pressure of plasma, resulting in changes in the lens of the eye and the osmotic pressure in the atrium, resulting in amblyopia and myopia. The chromium required by the human body should be obtained from natural foods, such as brown rice, corn, and brown sugar.

It is also important to note that eating more sweets will also change the osmotic pressure of the lens and aqueous humor.

5. Alkaline food: physical fatigue is caused by the acidic metabolites in the body that mostly make the human internal environment acidic, and eye fatigue is no exception. If you eat more alkaline foods, it will neutralize the acidic environment in the body and relieve eye fatigue.

Alkaline foods include coarse rice, apples, citrus, kelp, beans, green peppers and other fresh foods.

6. Riboflavin-containing food: Riboflavin can ensure the normal metabolism and development of the retina and cornea of the eye. Foods rich in riboflavin include milk, cottage cheese, lean meat, eggs, yeast and lentils.

Using a mobile phone to measure rotten strength is more fast and convenient, and then I will teach you how to use a mobile phone to measure your eyesight, hoping to help you.

1. First of all, in your phone, open the Quark browser.

2. Then in the browser that opens, click on the shortcut in the middle of the screen.

3. Then, on the page that opens, click on AI to measure your eyesight.

4. Then in the page that opens, click to enter the test.

5. The dust block finally completes the test according to the prompts, and this is done.