Summer, when the sun gradually glares sunglasses market also began to "hot" together. Broad-brimmed box, vintage fly's eye, smooth lines ...... all shapes designed to make the beauty of the girls pick dazzled, but they tend to focus only on the time of purchase styles, frames and lens colors, while neglecting the poor quality sunglasses possible harm to the eyes.
Many fashion people wear cheap oakleys sunglasses to use sunscreen, sunglasses and some very large, even covered his face. However, due to some oversized sunglasses mirror curvature of the lens is too large, long wear may cause eyesight damage. People buy sunglasses styles tend to focus only on the quality of the lens and the curvature of the size they do not care. If the lens is too large in people's faces covered, the curvature will produce change, while more than 15 degrees once the curvature of the lens, the lens will appear to accept changes in the refractive index of the light, wearing such sunglasses and see things there will be uneven. Such as long-term wear and easy to make eye fatigue, dryness and damage eyesight.
Some irregular stores selling sunglasses, although looks very beautiful, but poor ripple on the lens, this lens wear long easily produce dizziness, vomiting and other symptoms, greater damage to the eyes.
Although some lens material with the naked eye to see that the glass, or resin, but not through specialized detection equipment, do not know the quality, because the sunglasses using optical glass and optical resin, light transmission, abrasion resistance, pressure, surface tension, anti-ultraviolet function and other indicators with ordinary glass and resin, a big difference.
So it looks similar glasses, the actual quality may vary. When buying fake oakleys sunglasses, should choose reputable big stores and optical shops.
In a style selected, the most important to check the lens, because it directly affects the quality of glasses. Determine the quality of the lens there is a small trick that is placed in front of the lens about a foot away, looking through the center of stationary 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, it shows the lens is not flat, a bump, so definitely not buy sunglasses.
Summer best selection of sunglasses with UV protection function. For specific UV filtering effect, we should note that glasses uv index on the tag. Currently, most sunglasses uv index of 96% to 98%, and dark lenses better than light-colored lenses better.
Sunglasses popular this year, orange, yellow, grass green, etc. rather "jump" of the color, but the color is not coated lenses can block ultraviolet light, visible light absorption color only affects the performance of it. More vivid the color, the greater the impact on the pupil, if the lens cannot be adequately shielded from ultraviolet light, the greater the damage the eyes.
For myopia, wearing contact lenses and eye disease and other potentially visually impaired people, choose to go to the hospital or the best cheap oakleys sunglasses glasses high degree of credibility Center, professional optometrists prescribe, prescription choice.
— Select sunglasses do not only care about style
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