Department of Columbia University medical center in ophthalmology professor janet said: No matter old and young, the vast majority of people should not be wearing the blue sunglasses. Dr News after blue light of the sun's rays are studying human eye contact, will cause the retina in macular degeneration, the degenerative eye disease is the main cause of blindness in older people. She thought, as the growth of the age, some photosensitive compound will be more and more in the retinal cells, and the wavelength of the blue part in spectrum can activate these compounds to the greatest extent, to promote the release of harmful free radicals, just like the process of oxidation damage to retinal cells, threaten the health of the eyes.
We shopsunglasses.net experts also think blue sunglasses do cause damage to the health of the eyes, in order to protect the health of consumers, so we try to avoid to produce blue lenses
So, it is safe to buy a what color sunglasses?? ZhuRenYuan, said professor yellow or brown sunglasses is the best. He explained, because the yellow light has medium wavelength, led to the human eye's visual cells in yellow are the most sensitive, make the nature scenery looks more clear. Sunglasses can filter blue and yellow, cutting down on the amount of blue light entering the eye, can effectively protect the eye health. In addition to yellow or brown lenses, black lenses also is right choice, because it can reduce the contact with all colors of light.
Finally, warns customer, a good pair of sunglasses should be dropped the uv rays, rather than visible light. So. When choosing sunglasses, should choose to have uv protection function, uv index is usually between 96% - 98%; Both unfavorable choose too deep color, the light transmittance of the lens will be serious decline, make the human eye the pupil in releasing large dark, it will the same amount of uv raking and damage eyes.
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