Many people aware of the uv damage to the skin, but ignores the uv damage to the eyes.
Uv protection eyes of course choose sunglasses, but you know not to know inferior sunglasses more injury eye?
When we don't wear glasses to see is half squinting in the sun, ultraviolet rays entering the eye part, but if put on the inferior sunglasses that block the illuminate of strong light, when you see an object is opened his eyes, due to the lens as well as ultraviolet ray, so all ultraviolet light through the lens directly into your eyes!
So, wear a pair of darker can not effectively resist ultraviolet inferior sunglasses, equivalent to deceive us pupils -
It thought myself in a dark environment, relaxed, the doors open.
Little imagine, invisible to the naked eye of ultraviolet ray, swaggering, and went in.
Ray-ban sunglasses RB3449 men silver/lens dazzle colour blue 004/55 ultraviolet light to the eyes what harm?
1, cataract, glittering and translucent get rid of the lens, because of various reasons slowly becomes cloudy and not so transparent, we call it a cataract.
Senile cataract is common in many influence factors, the close relationship with the ultraviolet ray has been confirmed.
Ultraviolet illuminate eye every day, actually this is a small dose of the process of long-term exposure.
With age, the longer the illuminate of nature.
Ultraviolet light can maintain a transparent lens material and function is affected by a series of cells, leading to the lens opacity gradually.
2, retina macular degeneration of retina can absorb ultraviolet light, especially in areas under the center of the light -
In the macular area.
The present study showed that the ultraviolet and visible light can promote the occurrence of age-related macular degeneration and other macular degeneration.
However, due to the rear of the retina in the eye, let the lens at the front, greatly reduce the ultraviolet radiation to get it.
3, corneal and conjunctival especially long wave ultraviolet UVA, which penetrates into deep eyes, direct fundus macular degeneration caused by retinopathy, etc.
Macular was part of the retina visual acuity, the pathological changes of here can seriously affect vision.
4, although pterygium precisely because I don't know yet, but in the plateau or in the coastal areas such as ultraviolet intensity is high, also more common, ultraviolet light may be one of the cause.
Sunglasses factory YC9711 men sunglasses C1 black/dazzle colour red how to prevent ultraviolet ray?
Choose a picture of a qualified sunglasses when the sun glasses in the production, a series of standards of physics.
It requires that the sun glasses can't take a lot of visible light is blocked off, but on the premise of blocking a certain wavelength ultraviolet (uv), and ensure that as much as possible into visible light.
In addition, in the process, but also guarantee the accuracy of the readings, seeing no distortion, change color etc.
As amateurs, it is difficult to judge for themselves whether the glasses to achieve the above standard.
So, to encourage everybody to normal optician select normal manufacturer production, and clearly identify which has the function of block uv sunglasses.
Protective ways if you need to go out when ultraviolet strongly, or need to outside, the water, snow, ice and plateau environment for a long time, suggest a multilayer protection, such as a hat wearing sunglasses at the same time.
related: sun glasses sunglasses