2014年12月17日星期三

What good sunglasses color?

What good Replica Sunglasses color? Some people prefer to travel to play would choose to wear sunglasses to reduce ultraviolet radiation on the eye. Sunglasses are a variety of colors, in the end choose what color sunglasses should we do? Here and share with you the choice of colors sunglasses.

Scorching sun, in order to protect the delicate eye is not the sun burns, colorful sunglasses "debut." But recently, Reuters reported that the US ophthalmologists recommend, do not choose to buy summer blue lens Fake Sunglasses, because it may damage the eye health.

Dr. Janet Sparrow, professor of ophthalmology at Columbia University Medical Center, said a subsidiary, young or old, most people should not wear blue sunglasses. After Dr. Sparrow is studying the human eye contact with the sun's rays in blue, will lead to macular degeneration, which causes blindness in the elderly degenerative eye disease is the main reason. She believes that, with age, some retinal cells photosensitive compounds will be more and more, and the wavelength of the blue part of the spectrum to the greatest extent possible to activate these compounds promote the release of harmful free radicals, like damage to retinal cells oxidation process, as the threat of eye health.

In this regard, Shanghai Fudan University EENT Hospital, Professor Ren-Yuan Zhu also said that blue sunglasses indeed have eye health damage. This is because, on the one hand, short wavelength blue light, the blue light in the human eye in the minimum field of view, see things not clear; on the other hand, the blue color is the closest to ultraviolet, as with ultraviolet rays, optic unfavorable easy on the eye damage. Clinically, many diseases have been linked to the optic nerve blue light related. Professor Ren-Yuan Zhu stressed that in addition to the blue lens glasses, the current market popular color contact lenses with blue stripes will also harm the eyes healthy choice should be cautious.

So, what color to buy a Cheap Knockoff Sunglasses only safe? Professor Ren-Yuan Zhu said that yellow or brown sunglasses is the best. He explained that due to the yellow light with medium wavelengths, leading to the human eye is most sensitive to yellow depending on the cells, so that the nature of the scene look more clearly. Moreover, yellow sunglasses can filter blue light, reducing the amount of blue light entering the eye, can effectively protect eye health. In addition to yellow or brown lenses, the black lens is a good choice, because it reduces the contact with all the colors of light.

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