Wearing sunglasses cannot be arbitrary

In the heat of the sun, many people like to wear a pair of oakley sunglasses cheap, we can avoid the strong sun damage to the eyes, but also as a decoration, bring out their own temperament, sense. But note that the improper selection and wearing sunglasses, also hurt your eyes, damage eyesight.
Have you heard of "sunglasses syndrome" do? It does exist, and are often young people who in some fashion.
Continuous wearing sunglasses 1 to 2 weeks after, eyes or skin can occur between both sides of the cheek numbness, perception retardation and other symptoms, nasal discomfort when breathing feel like suffering from a cold, and some people will feel that there is a small insect crawling on the face, eye soreness and so on. This is because they often wear edge width, frame thick, heavy weight of the glasses caused.
In addition, some people like to wear sunglasses, regardless of time and place, indoors or outdoors, and even at dusk, watching movies, watching TV are wearing it, it will increase the burden on the eyes, causing eye muscle tension, blurred vision, severe dizziness will appear, can not be long as the other symptoms. These symptoms are caused by the misuse of sunglasses.
To choose the right pair of good glasses, in addition to concern sunglasses style, the following three facts can not be ignored.
1 of UV logo
UV is the primary function of oakley frogskins sunglasses and some sunglasses lenses or packaging with "100% UV", "uv400", "UV" and logo. If you can not wear a low-quality UV-blocking sunglasses, ultraviolet rays entering the eye more than not wearing sunglasses, even more easily lead to eye damage, a long time can cause cataracts, there will be eye pain, corneal edema, corneal epithelial loss and other symptoms . Generally have a regular optical shop sunglasses UV detection capability of the instrument, can detect whether your choice is correct. The street small stands, hawkers glasses and often do not meet quality standards, it is best not to buy.
2 Select the gray, brown and green lenses
Lens color selection should be based on the color of the surrounding environment without distortion, sharp edges of objects, which can effectively identify the different color lights principle. Lens color to gray, brown, green, preferably, the color of the lens because the infrared, ultraviolet absorption is better.
3 medium depth of the lens
In general, the darker the lens shading effect is stronger, but does not indicate greater ability of UV sunglasses UV protection features and lens material, technology and other factors. Lenses generally medium depth as well, of course, if the request shading effect is very strong, should choose darker lenses. But the bike or car can not choose the lens color is too deep, otherwise it is difficult to identify the color of traffic lights.
Occasions decided to choose the angle
Out activities, on different occasions should choose a different sunglasses. For example, some sports sunglasses, their frames are specially made, depending on the need to protect the eyes, can be comfortably worn securely, such as water skiing, skiing, hiking, golf, tennis has with suitable sunglasses. For those who love golf and tennis people, amber lenses can effectively increase the contrast and absorb blue light, helps the movement visual comfort.
Outdoor swimming wear is best treated through UV swimming cheap oakley sunglasses . Pilots, the best choice for fishing enthusiasts polarized sunglasses because polarized lenses eliminate glare from all sides, making objects appear more clearly.
Let sunglasses to beautiful points
In general, the different groups according to the different preferences and different uses to choose the sunglasses, but the most fundamental thing is to protect the wearer