Should babies wear sunglasses when they go out?
When we outdoor activities, will do a good job of sunscreen, many people will buy a sunglasses block the dazzling sun. A good pair of kids sunglasses can protect your eyes by filtering out most uv and blue light. The lens in the eye filters some of the ultraviolet light when people move around in harsh sunlight. When uv rays are too strong, people will unconsciously narrow their eyes, narrowing their pupils to reduce uv rays. Baby eyes are more vulnerable, the American Academy of Pediatrics recommends wearing sunglasses for the baby, so the baby's sunscreen work, must be armed to the eyes, can wear sunglasses to wear, can not wear must pay attention to block! Because the lens of children's eyes is much more transparent than adults, the ability to resist ultraviolet light is weak, if there is no protective measures, the damage to the baby's eyes is still relatively large.
Sunlight mainly includes infrared, visible and ultraviolet rays. Visual development in infants requires stimulation of visible light, not high-energy ultraviolet light. Our eyes filter ultraviolet rays automatically: the cornea only allows light above 295nm to enter the eye and absorbs UVA, while the lens absorbs energy below 400nm and absorbs UVB. Even so, 1% of uv rays still reach the retina, which over time is enough to trigger the onset of macular degeneration in people who are susceptible to it.
Uv damage is invisible, and adults can filter most of it, but children can't. Babies and toddlers have a higher lens transparency than adults, which means more UV penetration! Lens transparency: 95% at birth, 80% at 6 months, 75% at 8 years, 20% at 25 years. Here, the lens becomes yellow with age and the amount of ultraviolet light reaching the retina gradually decreases. The lens actually acts as the sunglasses inside the eye. If you don't wear sunglasses, your child's lens is forced to absorb more UV rays.
Due to ultraviolet radiation harm to the eyes have a cumulative effect, children and youth excessive uv exposure, old age is shown: mild harm of pterygium, medium hazard with senile cataract, severe harm is age-related macular degeneration, which is blinding eye disease, about 7.4% of people in Asia. There is no guarantee that your child will not fall into the 7.4% susceptible group. Sunglasses are the best precaution, so be sure to wear them!
Sunglasses block ultraviolet rays. Different colors, 0-4 tone, the visible light filter rate is different, not completely block the visible light. The most common shades are grade 3, with amber or brown predominates, and 9-18% of visible light passes through sunglasses, mainly during bright light (summer noontime and by the sea). To really affect a child's vision development, you need to block light completely, such as ptosis and cataracts. For children with amblyopia, the "healthy eye" should be completely covered for 12 hours a day for at least 6-12 weeks before the vision of the "healthy eye" will be gradually affected.
So, wearing sunglasses to your baby will not affect vision development. What really matters is how you choose sunglasses that meet the standards and are right for your baby.
how to choose suitable sunglasses for the baby?
Cheap sunglasses can also filter uv rays, but we still need to pay attention to the paint on the frames. In 2014, the US Consumer Product Safety Commission announced a recall of chinese-made children's sunglasses because of excessive lead levels in the paint. In addition, the design of sunglasses for your baby is also very important!
Lenses must be able to filter 100%UV: check the label for 100%UV absorption or UV400
The lenses are big enough: they cover your eyes, keep you from getting dust in the winter wind, and are best wrapped to filter reflected light from the temporal side.
An adjustable rubber stretch band attached to the leg holds the glasses behind the head, not against the ear. Hang it around your neck when you're not wearing it. Note: Stretchy glasses must be worn under adult supervision. Small babies and toddlers may choke if they are wrapped around their necks.
Resin lenses: Lighter and more pressure-resistant than standard plastic lenses.
Unbreakable: If your child is playing sports or roughhouse, you must avoid breaking the ring and sticking it into your eyeball. This can be very dangerous.
There is a spring hinge between the mirror leg and the pile head: it will not clamp the baby, the Angle of expansion is larger, and the rebound effect reduces the damage when landing.
In addition, there are strict industry standards for children's sunglasses abroad: Australian AS/NZS 1067:2003, American ANSI Z80.3-2001, European EN 1836:2005. Sunglasses will also be labeled with 100%UV absorption or UV400.
As early as 2015, the World Health Organization (WHO) published the article "Ultraviolet Radiation and Human Health", which clearly pointed out that ultraviolet rays in sunlight are very harmful to the eyes, not only can destroy the retina and macular area, but also cause a variety of eye diseases, resulting in visual deterioration.
Unlike adults, children spend three times as much time in the sun and suffer more damage from ultraviolet rays. Therefore, children should not only wear sunglasses in summer, but also need to wear sunglasses even after cloudy days and snow in winter.
How old can a baby wear sunglasses?
Many people will tell you not to wear sunglasses on your baby under the age of 6. It's bad for your child's eyesight. Does sunlight only affect people over the age of six? Apparently not.
How much to give the child to wear sunglasses depends on two premises, one is the quality of sunglasses to pass; Second, the baby can be obedient to wear. Satisfy above two points, much can wear mostly.
Common mistakes parents make when buying sunglasses for their children
1, children wear, almost on the line.
Children wear sunglasses not for decoration, but to protect their eyesight, parents must not be greedy to buy some cheap goods. Inferior sunglasses due to excessive diopter, inconsistent lens thickness, uneven color and other problems, it is easy to lead to children's dizziness, dizziness, vision decline and other problems.
The darker the color, the better.
When shopping for sunglasses, many people have the misconception that dark lenses work best. If you buy bad dark sunglasses for your child, the eyes will dilate when the sun stops shining on them, but the glasses have no effect on filtering out UV rays and do more damage than not wearing them at all.
1. Babies under 6 months old
Try to avoid the sun by wearing lightweight long sleeves and trousers, wearing a hat with a rim that covers your neck, or using a stroller or umbrella
2. Babies over 6 months old
Cover with clothing first, avoid sun exposure in the shade as much as possible, wear a hat with a 7.5cm brim, and wear sunglasses that provide 97%-100% UVA/UVB protection
In a word, the baby 6 months or more, can wear wear to avoid light damage to the baby's eyes, because the baby's cornea and lens is clearer than adults, but also more vulnerable to ultraviolet damage, and these damage is irreversible!
How to buy qualified sunglasses for children?
1. Choose lenses
Sunglasses can protect the eyes, all rely on two qualified lenses. The lens diopter of children sunglass above all if 0, thin thick and color even, when such ability assures to see an object, do not be out of shape, do not change color.
The lenses of sunglasses are divided into four levels according to the protection filter level: Level 1 basically has no protection ability; Level 2 uv filtering function is weak; Level 3 can effectively filter blue light and glare, suitable for daily wear; Level 4 is a professional grade, which is dark and not suitable for public wear. When buying sunglasses for children, parents should buy grade 3 lenses that filter 99 percent of uv rays.
2, pay attention to size
In addition to the lenses, the size of the sunglasses is also important, and pay attention to match the shape of the child's face. If the glasses are too big, there will be a gap in the middle, and the light will still come in through the gap, and the protection will be greatly reduced. If the glasses are too small, the child is uncomfortable to wear.
3, pay attention to the material
The child is lively and active, sunglasses should be light and unbreakable material as far as possible, so that it is not easy to fall off when wearing, and it will not hurt the baby because of broken lenses.
What if kids don't wear sunglasses?
Many babies do not like to wear sunglasses, mothers can also use umbrellas or hats to help children block, to avoid strong light directly shining on children's eyes, resulting in unclear retinal imaging, affecting the development of children's vision.
