Carefully crappy sunglasses

Summer, a variety of merchandise is very popular summertime, but the public is often in the consumption process there are some errors, which give the health of consumers may bring some harm.
When summer arrives, oakley sunglasses cheap become a hot commodity. Almost every mall will be placed on a layer of counter sunglasses prominent position, each of the shelves stocked with various brands and various styles of sunglasses, the recent period, sales of sunglasses increased rapidly. Consumption: style and price-driven consumer.
Purchase and wear sunglasses need to be very careful, otherwise not only cannot protect the eyes, but also may cause damage to eyesight health. Many people buy sunglasses glasses most concerned about is the style, they often pick up a sunglass styles look in the mirror before they meet their own face or the more fashionable they bought it, no longer cares about sunglasses other information. Even more worrying is that some members of the public for the sake of cheap, or just for blocking the sun, casually on the roadside stalls to buy sunglasses they wear up. Myth one: to block the sun will be able to protect your eyes
Inferior sunglasses may burn eyes.
Wearing sunglasses inferior may burn eyes. People narrowing the pupil in bright light, the use of self-regulatory functions of the human eye resist ultraviolet rays and other harmful rays. In contrast, the human pupil in low light conditions will enlarge. The poor cannot wear sunglasses UV protection, but will be a lot of residual ultraviolet injection in the eye, might as well not wear. If you regularly use this type of anti-UV cheap oakley sunglasses cannot, you may burn the eyes. If the degree of deep burns on the retina are damaged sensory cells even unrecoverable. Myth: Dark Mirror block more UV
Sunglasses can block UV rays cannot be distinguished with the naked eye.
Can sunglasses UV is unable to distinguish with the naked eye. Sunglasses can block UV rays, is added a special coating on the lenses. After lens coating, barrier, absorb UV light, while also blocking a part of useful light, light transmission lens has declined. UV-blocking sunglasses mirror shades capacity and there is no direct relationship between the real quality sunglasses, UV-blocking ability, transmittance decreased and small, does not affect the normal visual clarity. Myth: Children wearing sunglasses against the sun
Reminder: children and the elderly careful to wear sunglasses.
Many people are for the children to buy sunglasses. Summer arrived, ready to take the time to travel with children, fear of sun damage children