On May 19th, Dr. Cui and Dr. Xie Binyu, Director of Ophthalmology at Yu gakuen Clinic, conducted a live broadcast with the theme of "Family Sunscreen Eyes". Many friends may not be able to watch the whole live broadcast for some reasons, it doesn't matter, Xiaoyuanzi will be the knowledge of the whole live broadcast and everyone's high-frequency questions about "eye sunscreen" have been unified and answered, let's take a look at it!
<h1 class="pgc-h-arrow-right" >01 knowledge point summary</h1>
First, ultraviolet rays can cause damage to the eyes
Ultraviolet rays can not only damage the skin around the eye, but also damage the internal structures of the eyeball. If the sunscreen of the eyes is ignored for a long time, our eyes are more likely to have eye problems such as bleral fissures (common in the elderly) and cataracts under the stimulation of ultraviolet rays.
The UVA band in ultraviolet rays can penetrate the glass, so if you need adults who often work and study by the window, they should also pay attention to the sun protection of the eyes indoors; families with babies should pay attention not to let the baby bask in the sun through the glass.
In addition, it should be emphasized that sometimes adults go out, in order to avoid sunlight, they will walk in the shade with their heads down, but whether they are in the shade or not, walking with their heads down, the sun shines to the ground, and the refracted light will directly stimulate our eyes. Therefore, it is recommended to do a good job of eye protection (wearing sunglasses or hats, etc.) when going out.
Second, the four points of choosing qualified sunglasses
1. Be sure to choose sunglasses with UV protection. Judge whether the anti-ultraviolet function of sunglasses is qualified: (1) the packaging of sunglasses needs to be marked with the logo of "UV400" or "UV100%"; (2) you can use household ultraviolet lamps to illuminate sunglasses lenses to see if there is a anti-ultraviolet anti-counterfeiting logo;
2. Don't choose sunglasses or toy sunglasses with more decorations for your baby. The decorations on the sunglasses may block the baby's vision, and long-term wear may affect the baby's vision development; and the toy sunglasses do not have the function of ultraviolet rays at all, and cannot protect the baby's eyes.
3. The area of sunglasses lenses can not be too small, otherwise the sunlight is easy to enter the eyes from above and sideways, and it will not play enough protective role; when choosing sunglasses for the baby, it should also be suitable for the baby's face shape, head circumference, and the frame should not be too wide or too narrow, so as not to make the baby unable to wear or uncomfortable.
4. In terms of lens color, the main color is tea brown, light gray and dark green, and the visual experience and comfort of these three colors will be better than other colors.
Third, the protection and storage of sunglasses
Sunglasses wear can not only blur vision, but may also ruin the sun protection function of sunglasses. Therefore, sunglasses must be stored when not in use, the mirror is placed upwards, if you need to put them in a bag, it is best to pack them in a special glasses box or spectacle bag.
Fourth, how to carry out eye sun protection for small month-old babies who cannot wear sunglasses
For babies who are young and can't yet wear sunglasses, when the baby is lying in the stroller, you can open the awning to protect the baby's eyes from the sun, or wear a sunhat with UV protection. However, even if these shading methods have a certain sun protection effect, but can not guarantee that it is foolproof, it is recommended that parents in the summer of strong sunshine, try to avoid ultraviolet rays too strong period (10:00-16:00) to take the baby out.
When babies over 2 years old go out, it is recommended to wear sunglasses. And, whether it is for babies or adults, it is not recommended to wear sunglasses frequently outdoors, or indoors. If you wear sunglasses outdoors, take off your sunglasses in time after entering the room.
< h1 class="pgc-h-arrow-right" >02 high-frequency problem</h1>
1. How old is your baby to start wearing sunglasses?
A: In fact, the American Academy of Pediatrics (AAP) recommends that babies over 6 months old should wear sunglasses to protect their eyes when they go out, which is mainly related to the high intensity of ultraviolet rays in the north American sunshine and the longer outdoor activity time of children in North American culture.
For Chinese children, we also need to analyze it according to the sunshine environment and parenting model. Parents are advised to wear sunglasses to protect their eyes when taking them out after the baby is 2 years old.
It should be noted that parents should take their babies to a professional eye clinic to buy sunglasses in order to choose sunglasses that are suitable for the baby's face shape and eye condition. Many parents may purchase foreign sunglasses through purchasing. However, the glasses purchased by the agent cannot be tried on by the baby himself, and the design of the local sunglasses may not be suitable for the face shape of Asian children, and if the glasses are not suitable, the baby may be unsafe when going out.
2. How often do sunglasses need to be replaced for babies?
A: Children are in the rapid growth stage, whether it is sunglasses or glasses should be replaced in time with the baby's growth changes. In general, the size of the glasses should be determined according to the size of the baby's head circumference, not just the baby's height, weight, age, etc.
For example, the younger baby's head circumference changes rapidly, and may need to change the sunglasses once every six months; while the head circumference value of the older child has been relatively stable, and although the height and weight have changed greatly after a period of time, the original sunglasses are still very suitable, and there is no need to replace.
3. Children don't like to wear sunglasses, what to do?
A: Parents are a model for children's daily behavior, and children do not like to wear sunglasses, which is likely to be related to the fact that parents do not love sunglasses every day. If parents do not love to wear sunglasses, you can try to wear sunglasses when you go out to demonstrate behavior for the baby; or buy the same sunglasses with the baby, and wear them together when the whole family goes out to increase the baby's interest in actively wearing sunglasses. If your baby really doesn't like to wear sunglasses, you can also wear a large hat with UV protection to shade him from the sun.
4. Will your baby's wearing sunglasses affect vision development?
A: The baby wearing sunglasses will not affect the development of vision, but the premise is that you must choose professional, formal and appropriate products. If you wear substandard sunglasses for your baby, such as toy sunglasses, not only can not protect the eyes, but also may cause damage. Because when the baby wears sunglasses, the light received by the eyes is relatively weak, and the pupil will become correspondingly larger, but at this time, if the sunglasses cannot effectively filter out the ultraviolet rays, the ultraviolet rays will directly hit the eyes, causing damage. Therefore, to wear sunglasses for the baby, be sure to choose products with guaranteed quality and sun protection, and definitely do not wear toy sunglasses for the baby to protect the sun.
5. Does wearing glasses have an impact on the development of the bridge of the nose? Will the bridge of the nose collapse?
A: In fact, the development of the baby's nose bridge is mainly related to heredity, whether it is myopia or sunglasses, it is unlikely to adversely affect the baby's nose bridge development.
6. How do myopic people wear sunglasses?
A: For adults who need to wear myopic glasses, in addition to the general myopia sunglasses, there is now a kind of "color-changing mirror", that is, the color will become darker in places with strong outdoor light, and the color will become lighter in places with weak indoor light. Although this kind of color-changing mirror will be more convenient to wear, there are also shortcomings: on the one hand, the darkest color of the color-changing mirror will generally be lighter than that of special sunglasses, and it may still feel dazzling in strong daylight; on the other hand, the color-changing mirror is also inferior to the general sunglasses in terms of aesthetics. You can choose according to your own needs.
7. How to identify whether sunglasses have polarization function? Is it recommended to wear polarizers?
A: Whether to wear polarized glasses depends on personal needs and usage scenarios. If you want to go to a place with more space, such as going to the beach, climbing or skiing, because the outdoor light is more intense, you need to use sunglasses with polarization function to protect your eyes. Because there is a protective film on the lens of the polarized glasses, the light will be refracted when it hits the lens, so that the light that shines directly through the lens to the eye will not be so intense, thus playing a protective role for the eye.
So, how to identify whether sunglasses have a polarizing function?
You can turn on the TV, then take out the sunglasses, look at the image of the TV screen through the sunglasses lenses, and you will find that the image is bright. Subsequently, the sunglasses are slowly flipped vertically, and if the surface image of the lens is significantly darkened, the sunglasses have a polarizing function. If it is a normal sunglasses, there will be no chiaroscuro changes on the surface of the lens.
The above is Xiaoyuanzi's detailed answer to the knowledge points and high-frequency questions in the live broadcast of May 19 [Family Sunscreen Eyes]."