Is UV protection enough for children's sunglasses?？？？
Sun protection should not be neglected, because children's skin and eyes are delicate, and ultraviolet rays can cause great damage to the skin and eyes. For skin sun protection, it is best to choose a physical sunscreen that does not contain preservatives and risky ingredients, and for eye sun protection.
From last year to this year, I have seen many parent-child group purchases of sunglasses. Ruimin found that most children's sunglasses have overlooked a very important issue, which is the polarization function of the lens.
If children's sunglasses use ordinary resin-dyed lenses, they can only protect against UVA and UVB. You should know that even the cheapest resin-dyed lenses can filter 90% of ultraviolet rays, but the protection of children's eyes must also solve the problems of strong light and glare.
In the eyewear industry, in fact, adult professional sunglasses with a little quality will choose polarized lenses. Children's sunglasses may consider cost issues, and many brands still stay in the most primitive resin-dyed lens configuration. What kind of protection can polarized lenses bring to people's glasses?
Polarized lenses are lenses made according to the polarization principle of light. They are used to exclude and filter out scattered light in the light beam, so that the light can be projected into the eye's visual image on the right track of the light transmission axis, making the field of vision clear and natural. Therefore, polarized lenses can filter out many irregular light interferences and avoid dazzling and glaring phenomena.
Speaking of dazzling and glaring, everyone must have experienced it. In sunny weather, the glass curtain wall is dazzling, the strong reflection of car glass is dazzling, the night light of cars at night can make people temporarily blind, the water surface of the seaside or lake is dazzling, the reflective points of the glass blackboard make it difficult to see the words, and even reading under the light at night, the smooth and reflective coated paper can also make the eyes very tired. This kind of common strong light and glare can cause more stimulation and damage to the human eye than ultraviolet rays.
