When the sun gradually glares Discount Oakleys Flak Jacket Sunglasses Cheap sunglasses market also began to “hot up". Broadside big box, vintage fly-eye, smooth lines…… a variety of design allows the beauty of the girls pick dazzled, but they tend to focus only on the style at the time of purchase, the frame and lens color, but ignored the poor quality sunglasses possible harm to the eyes.
Some informal shops selling sunglasses, although looks very beautiful, but there are ripples on the poor quality of the lens, this lens wear long easily produce dizziness, vomiting and other symptoms, the greater the damage to the eyes.
Although some of the lens material with the naked eye to see that a glass or resin, but is not detected by the specialized equipment, do not know the quality is used as sunglasses, optical glass and optical plastic light transmission, wear resistance pressure, surface tension, anti-ultraviolet function were ordinary glass and resin are worlds apart.
So it looks similar glasses, the actual quality may vary. When buying Tiffany and Co Key Necklace Jewelry Outlet sunglasses, should choose reputable large stores and optical shops.
In selected a style, the most important thing is to check the lens, because it directly affects the quality of glasses. There is a small trick to judge the quality of the lens, the lens is placed in front of about a foot away, watching through the center of a fixed items, and then gently move up and down. If it is plain mirror, objects should not move, if the object is moving along with the lens or distorted, the lens is not flat, there are convex, so definitely not buy sunglasses.
Summer has the best selection of UV protection sunglasses. For specific UV filtering effect, we should note that UV index tag on the glasses. Currently, most sunglasses, UV index between 96% to 98%, dark colored lenses lens effect is better than that.
Sunglasses quite popular this year, " jump" colors orange, yellow, grass green, etc., but cannot be colored lenses block UV, visible light absorption color only affects the performance of it. The more vivid the color, the greater the impact on the pupil, if not fully block UV lenses, eye the damage is even greater.
Experts pointed out that for myopia, wearing contact lenses and eye disease and other potentially visually impaired people, the best choice to go to hospital or Cheap Oakleys Frogskins Sunglasses Outlet sunglasses glasses high reputation Center, and professional optometrists prescribe prescription choice.