Wearing sunglasses why giddy

With xixi spring warm wind slowly walked beside us, as the sun after the rain also increasingly, sunglasses become a street, a necessary thing in the world. But some people are very upset, because wear sunglasses will be dizzy, this allows those who want beauty fashion harrowing experience! Is this why? According to experts, if the sunglasses with you feel dizzy, it is possible that mirror feet too tight, nasal part discomfort and the oppressive feeling, or the lens itself steradian, prism degree parameters such as unequal. Colorful phenomenon about the lens, has nothing to do with dizziness, in principle, but may cause visual effect is not good. Color may be the cause of liquid lens injection process problem or degrees. In addition, more than 8 curved sunglasses how many there is a degree, may also cause dizziness. Sunglasses factory YC9705 general sunglasses C7 white/color purple in addition to this, there is another possibility is your sunglasses are fake and shoddy products, four sunglasses can't wear the following: 1, uv protection function of sunglasses more in name than in reality. Good lenses, can stop more than 99% of the ultraviolet ray, and identify UV400 lenses are 100% ( 99. 99%) Block uv rays. With uv protection function of sunglasses, the eye is like in a dark room, the pupils get bigger, the remnants of ultraviolet ray will be raking in the eyes, make the eyes hurt. Good to store to buy or in high-profile online flagship store to purchase. Small must not enough to buy out of the carpet, although those sunglasses can block ultraviolet light, but the lenses work are not in place, also is not qualified, don't because is cheap to buy it, bad eyes can cause different degree of damage to the eyes. 2, transmittance unqualified sunglasses. After wearing the sunglasses, can produce traffic signals to identify obstacles, easy to cause traffic accidents. Except for myopia glasses and reading glasses) Simple identification method for, can put sunglasses in sight, observations of distant places through the lens, such as window frame or door frame, then glasses from top to bottom and move around, goals should not have swings and wavy deformation. Sunglasses factory YC9708 general sunglasses C7 black box silver leg/lens ash 3, not mark category id of the sunglasses. Sunglasses generally divided into three classes, namely for sunshade shade mirror, used for decoration light mirror and used in special mirror snow goggles or waterproof surface radiation. If there is no product category id, when consumer is buying can't correct recognition of the use of sunglasses, affect the use effect. 4, the fight against performance does not meet the requirements of sunglasses. Lenses easily broken when impacted by external force, debris could become a fatal injury to the person's eyes. Picture frame material is very important also, general with plates, aluminium magnesium alloy, pure titanium. Different demand to the requirement of the sun is different also, have special used for movement of the polarized light sports mirror, polarized light driving glasses, polarized lens fishing, etc. , when buy, can ask the professional use of clear sunglasses. Experts warn broad customer, buying sunglasses should to formal shop of choose and buy famous brand; When buying, should first try, and compare the wear before and after the color change is obvious, to wear sunglasses after see objects' color distortion is advisable. Small make up teach you two sunglasses of choose and buy: the secret of a clear product identification and pay attention to whether glasses with uv resistant and impact resistant function. Want to know, not all sunglasses with uv protection, are 'ultraviolet prevention function of sunglasses, in the product label or glasses should have a positive' 100% ultraviolet prevention ', 'UV400 labeled' logo. 2 it is to observe the lens quality when the sunglasses in the eyes, look through the lens in the distance, the glasses from top to bottom and move around, goals should not have swing, lens color stability. Look out through the lens, the distortion of the color of the surroundings, have the ability to identify different color lights.
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