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Minimize wear sunglasses

Author: Robin Lee
by Robin Lee
Posted: Mar 13, 2014

Summer season, Cheap Oakleys Radar Sunglasses Discount sunglasses become a fashion element chase. Prepare a summer sunglasses are necessary, but if you choose an inferior, substandard sunglasses, not only cannot resist ultraviolet rays, but will also expand the pupil, the eye More UV lens intake may therefore suffer from cataracts and other eye diseases, so sunglasses are not dispensable decorations. So usually buy sunglasses should pay attention to?

Many people are aware of the strong ultraviolet radiation can burn the skin, but many people do not know that the eyes will be "sunburn." As the human eye is extremely delicate parts, is easily UV sunburn, sun exposure has a cumulative effect, over time, there is bound to hurt the eyes, called chronic light damage on the medicine.

Due to the different ocular tissues absorb different wavelengths of ultraviolet light structures can lead to many acute and chronic eye diseases and injuries. Light will burn the retina, as you know, snow blindness, because ultraviolet radiation on the cornea epithelial damage caused by inflammation.

Many eye diseases are related to excessive sunlight. Have an eye disease called pterygium, it is the Ministry of palpebral conjunctiva and cornea of??a neoplastic tissue, covering the pupil to seriously affect vision. UV damage occurs and is closely related to pterygium, because this disease is more common in outdoor workers, such as fishermen easier to get this eye disease.

But in recent years, as the air pollution, destruction of the ozone layer, more and more voices on the International believes that excessive sunlight has become another cause of cataract. Cataracts are due to ultraviolet radiation in sunlight, cause lens opacity, or protein denaturation.

Worn in the sunlight without UV protection sunglasses, eye damage is great, because most of the darker sunglasses, his eyes in the dark light environment will enlarge the pupil, so that more ultraviolet light into the pupil of the eye cause more harm.

The main effect of UV blocking Cheap Tiffany and Co Necklace Jewelry Outlet sunglasses is damage to the eyes, not just to improve the visual effects, which requires sunglasses to the sun's ultraviolet transmittance as low as possible, ie reflectivity and absorption rate as high as possible.

Solar spectrum wavelengths from 380 nm to 780 nm is called visible light, including different colors red, orange, yellow, green; wavelengths greater than 780 nm is part of human eyes can not see, called infrared; wavelength less than 380 nm Also see the section of the human eye, known ultraviolet (uv), depending on the wavelength, can be divided into UV uva, uvb, uvc and other vacuum ultraviolet band of sun damage to the skin and eyes, primarily by one of uva, uvb and uvc etc. caused by UV.

Ordinary glass, including glasses and street selling most low-end sunglasses can filter out ultraviolet part, but the general effect, in order to achieve better results UV sunglasses lens, the material must be added UV protection. Provincial Institute of Metrology engineer Wang Wen-hsing told reporters, sunglasses with UV protection uv index to measure the effect of the higher uv index, UV better.

When consumers buy sunglasses must go to a regular store, not just on the Internet, flea market to buy. If you choose sunglasses in general, we should pay attention to when buying distinguish good or bad, whether there is a clear manufacturers, trademark, address, telephone and production license number; around two lens colors are balanced; whether anti-uv logo; Frame Material, Electroplating and process-related details of the deal are detailed. If conditions permit, you can ask the store site testing Fake oakleys frogskins sunglasses cheap for sale sunglasses UV Index value, the value is greater than 96% better.

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Summer season, Cheap Oakleys Radar Sunglasses Discount sunglasses become a fashion element chase.

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Author: Robin Lee

Robin Lee

Member since: Dec 28, 2013
Published articles: 7

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