Worried about myopia in children during the winter vacation? Most of these anti-myopia "high-tech" are unreliable, and scientific eyes are more important!

Most anti-myopia high-tech is unreliable

Reporter Of this newspaper, Yan Sheng

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Winter vacation has arrived, children at home whether learning or entertainment can not be separated from electronic products, parents began to worry that children's excessive use of electronic products will cause myopia. So, eye care tablets, anti-blue light glasses, projectors, eye masks, eye patches... Parents hope to rely on the current "high-tech" means to protect their children's vision. So, are these products, known as eye protection "artifacts", really reliable?

Anti-blue light glasses, eye protection tablets to prevent myopia?

Blue light is not the culprit of myopia

Some articles say that harmful blue light has extremely high energy and can penetrate the lens directly to the retina, causing the atrophy and even death of retinal pigment epithelial cells. The harm of blue light to the human eye is mainly manifested in the pathological hazards of the eyes and the harm of human rhythms that lead to myopia, cataracts and macular degeneration. The eye protection tablet sold online, manufacturers said that it uses blue light wave redshift technology, which can effectively reduce the amount of blue light radiation on the electronic screen.

In fact, many parents have always misunderstood blue light. Blue light refers to visible light with a wavelength of 400 to 500 nanometers, most of which comes from sunlight, and there is also blue light in common light sources such as LED lamps that we use every day. Blue light is also divided into two kinds: beneficial and harmful. Harmful blue light is mainly in the 400 to 445 nanometer band, and long-term irradiation may indeed damage retinal cells. However, the mainland's recommended standard for photobiological safety is that the spoke brightness is less than or equal to 100 units, and there will be no blue light hazard in this range, and the radiation brightness of most electronic products in life is within 1 unit.

Wei Ruihua, chief physician of the Eye Hospital of Tianjin Medical University, said in an interview with the media that these eye protection products do not play a role in preventing myopia, and if the hope of protecting vision is pinned on them, it will make students and parents relax their vigilance, ignore the health of the eyes, and increase the risk of myopia.

In fact, the use of electronic products for a long time, uninterrupted, close distance, and improper posture, resulting in excessive use of the eyes and eye fatigue, is the cause of myopia.

Since the blue light exposed to in life is not the main cause of the disease, then anti-blue light glasses can not play a role in preventing myopia. Zhao Fang, deputy chief physician of the Department of Ophthalmology of Wuhan Central Hospital, introduced in her article that compared with ordinary glasses, anti-blue light glasses are coated with anti-blue light factors or lens surface coatings in the substrate of the lenses, cutting off some of the damage caused by external light to the eyes. In fact, the blue light of most qualified electronic products and lighting lamps will not pose a blue light hazard to the human eye. On the contrary, unqualified anti-blue light glasses not only do not play a protective role, long-term wear can also cause eye fatigue, eye swelling and pain and other discomfort. To prevent the occurrence of myopia, we must mainly rely on good eye habits. For people who are regularly exposed to electronic screens for a long time and people with macular degeneration, blue-light-proof glasses may be considered, but medical advice is also required.

Can an eye massager control and treat myopia?

Inaccurate massage location is harmful

Reporters on the major e-commerce platforms to see that many of the massage, hot compresses, multi-frequency vibration, infrared induction and other functions of the eye protector is quite popular, the product introduction said that it has the effect of eliminating fatigue, alleviating dryness, eye swelling, eye pain and so on. However, there is no scientific basis for its controlled and therapeutic effect on myopia.

So, what is the principle of eye protectors?

Chen Da, attending physician of the Department of Ophthalmology of Wuhan Municipal Hospital of Traditional Chinese Medicine, once introduced,

The eye protector is a way to massage the eyes through constant temperature, which has a certain effect on relieving eye fatigue, but it cannot fundamentally solve the problem of children's myopia.

Therefore, before choosing a purchase, parents must first determine whether the child is true myopia or false myopia. In the stage of pseudomyopia, the massage and hot compress function of the eye protector is helpful for the restoration of vision. However, once diagnosed with true myopia, it is irreversible, and parents should no longer hope to let their children say goodbye to myopia through eye protectors.

In addition, everyone's eyes are different, the location of the acupuncture points around the eyes is also different, the eye massager can not find the acupuncture points, massage is ineffective. Wei Ruihua introduced that if it is pressed on the child's eyeball and the vibration intensity is too large, it will cause damage to the eyes. It is more convenient and safer to use an eye massager than to do eye exercises by children themselves, and we advocate that primary and secondary school students do 5 minutes of eye exercises every morning and afternoon. In addition, proper ball sports are also conducive to the prevention and control of myopia.

For how to protect children's vision, Chen Da also suggested that to protect children's vision, scientific use of eyes is more important. Parents should cultivate children's good eye habits, each eye use 30 minutes should rest for 10 minutes, look at the distance, increase children's outdoor activity time, and maintain at least two hours of outdoor activities every day. At the same time, you should also establish a correct awareness of eye protection, 90% of myopia is irreversible, when the child's vision is reduced, you should seek medical attention in time.

Can eye masks and eye patches improve vision?

The degree of myopia is irreversible, and the products that claim to cure myopia are not credible

There are also some steam eye masks, hot eye patches, Chinese medicine eye patches and other products on the market, and sales are also relatively hot. The principle is mainly to speed up blood circulation in the eyes through the appropriate temperature, thereby alleviating eye fatigue. In addition, steam also has a certain alleviating effect on dry eye. However, this kind of eye mask and eye patch have no effect on preventing myopia.

In addition, Chinese medicine eye patches can not treat myopia. Wang Yuwei, chief physician of the Department of Ophthalmology of the First Affiliated Hospital of Henan University of Traditional Chinese Medicine, once introduced that the main basis for the treatment of myopia with Chinese herbal medicine as raw materials for many eye patch products is "to activate blood to see". However, the diagnosis of pseudo-myopia requires scientific medical means, do not blindly believe in the business "restore vision" and "Chinese medicine to treat myopia" and other propaganda.

If you find that your child's vision is decreasing, you should go to a regular medical institution to receive professional guidance from a doctor so as not to miss the best time for correction.

In addition, there are also products such as reducing glasses and acupuncture massage eye masks on the market that claim to be able to cure myopia, and sell "artifacts" for treating eyes under the banner of "high technology". Professor Wang Hua of the Optometry Medical Center of Hunan Provincial People's Hospital once stressed that the so-called high-tech products that can help children with myopia restore their vision are not credible.

So far, there has been no way to reduce the degree of myopia in adolescents, which is irreversible.

If your child has to use electronics, the Guidelines for the Prevention of Myopia in Children and Adolescents During covid-19

E-learning digital products should choose large-screen electronic products whenever possible.

Electronic products with high screen resolution and appropriate clarity should be selected.

When using electronics, adjust the brightness to feel comfortable in the eyes, not too bright or too dark.

When using a projector, the viewing distance should be more than 3 meters;

When using a TV, the viewing distance should be more than 4 times the diagonal distance of the screen;

When using a computer, the viewing distance should be more than 50 cm (about an arm's length).

The pictures in this article are from the Internet

Edit || Swallow sound Wan Tao

The duty director || Fan Hongbo