Uv avoid eye injury

Normally, people can't identify or feel the ultraviolet ray, it is a kind of not visible, but it can be in imperceptible in by the skin and eyes organs such as damage absorption and, known as the "invisible killer" a little too much. If the skin peeling, ultraviolet cause sunburn can also cause attention as a warning of words, so, it caused damage to the eyes, and no obvious early performance, not easy to attract attention.

The eyes are the most sensitive to uv light organ, the ultraviolet radiation of the cornea, the main eye lens and damage to the retina. Research has shown that uv cormea injury force is the largest, can cause severe pain, corneal opacity and cause vision loss, keratitis caused by sunlight. But almost ultraviolet ray can cause damage to the lens, senile cataract is one of the pathogenic factors. According to the world health organization published data show that the global every year 16 million people for cataract blindness, of which 20% was due to long exposure to ultraviolet rays (uv) cause. Long wave UVA, still can penetrate deep into the eye to eye and cause macular degeneration etc retinopathy.

Ultraviolet radiation throughout the year all exist, and the damage to the eyes have cumulative effects, and therefore should be started to take preventive measures to protect as early as possible eyes away from uv damage. The child's eyes are more sensitive to uv radiation, the incidence of ultraviolet light through children 10 and under the amount of transparent lens for adult 6.5 times greater. Most of the children in outdoor activities, all without any protective measures, direct exposure to ultraviolet light. Parents should be told children don't look into the sun, ensure that children's eyes in a protective state, for their whole life's visual health to lay the foundation.

To reduce sunshine insolate and eye appropriate protection, is to avoid damage to the eyes of uv two principles. From 11 am to 2 PM, sunshine point-blank, ultraviolet radiation is the strongest. In the day when the road surface attention outdoor, surface, snow, beach reflected light brings the ultraviolet ray, especially among the urban construction glass curtain wall produce large amounts of glare and scattering light, the ultraviolet radiation belongs to a strong, causing the damage eyes bigger also.

Not only in the summer to sunglasses have needs, in fact, throughout the year all can use. Should choose marked "100% uv" "UV400" sunglasses, which means that the lens can stop wavelength 400 nano all the following the ultraviolet ray, can achieve the effect of all uv protection. In optical principle, lens with ash, tan color and green for beautiful, inspect content can retain the most natural color.

Wear no ultraviolet prevention function sunglasses, the person's pupil will expand, ultraviolet ray than don't wear sunglasses instead more easily into the eyes, cause damage can be imagined, long wear may cause vision loss. So not only pay attention to style, but ignore sunglasses itself quality. (LiuBin)