World

The Green and brown sunglasses can withstand the deadline.
Glass, the eyes of the resin.
When buying sunglasses will draw on the counter, sunglasses, if not smooth, glasses placement problem. Frames

When choosing Sunglasses feet hand of fluorescent lamp, mirror the gentle rolling glance. If the sun appears specular light waves, distorted lens uneven, proof. This lens can damage eyesight.

Eyes are very sensitive organs, so choose sunglasses when will lens quality in the first place, high definition, Lens.
A few days ago the experts said the life is good as long as uv
30 yuan and brand difference only after-sales service
Identify whether uv
Choose when buying used ultraviolet lamp (small yanchao lights, and can occur with instruments of ultraviolet ray to buy) the illuminate eyeglass lenses of ultraviolet ray, then if anti-fake markers invisible ultraviolet anti-counterfeiting mark of RMB will explain the Sunglasses to 100% uv, and will not have uv function.