The brief introduction of sunglasses
The sunglasses have been not only as a protective vision care supplies, it is more stylish family Dress up, be cool, to reflect the personal style of ornament. The merchant sell sunglasses on the market professional optical shops, international stores,just like cheap oakley sunglasses, clothing stores, jewelry stores, small vendors, etc., the price ranging from a few dollars on a million(like one pair of cheap oakley sunglasses. Seen the quality of the sunglasses should also mixed. Many people buy sunglasses mainly to his style to wear to go good or bad. As for how the quality, wear, play a role, to buy that type of sunglasses is simply confused. If we wear the poor quality sunglasses, ranging from dizziness, headache, weight is caused by solar keratitis, cataract. The current consumption to remind teach everybody to buy a qualified sunglasses.
Sales of sunglasses on the market is generally divided into three categories: sun mirror, light-colored sunglasses, and special-purpose sunglasses.
The sun mirror: people usually rely on in the sun to adjust the size of the pupil to adjust the flux when the light intensity more than the human eye to adjust, it will cause harm to the human eye. The sun mirror can play the role of sun shading, in order to reduce fatigue caused by eye over-regulate or damage caused by light stimulation;
The light-colored sunglasses: in recent years the more popular varieties, play a decorative role, can also be used when the sun is not strong. Light-colored sunglasses due to its colorful, rich, fashionable, variety, by the favor of young people. Long-term will lead to the human eye fatigue, wear a certain color glasses wearers mistake these glasses when the sun mirror, not only will not achieve the effect of shading, and may also damage the human eye.
Special-purpose sunglasses: wear in the beach, skiing, hiking, sunlight is more intense field.
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