Does your sunglasses is uv protection sunglasses?
As weather turn hot, many people began to buy sunglasses. But many young people wearing sunglasses is not the primary purpose in order to uv protection, but for decoration. Inappropriate wearing sunglasses can cause headaches, eye pain, fatigue, discomfort, and even appear decreased visual acuity or cause exacerbations of the disease itself.
Wearing sunglasses have the following common misconceptions, remind everybody to avoid.
A misunderstanding: wearing sunglasses can protect eyes
Not all of the sunglasses can protect eyes, a pair of qualified sunglasses in addition to block ultraviolet rays through, but also can well distinguish different colors of traffic signals. Unqualified Sunglasses may with some of the diopter, sighted people wear the sunglasses, equivalent to wearing a pair of myopia or hyperopia mirror, the eyes will be greatly affected; in addition, part of the inferior Sunglasses due to effectively block the useful after visible light, so that the ultraviolet irradiation is more obvious. So suggest people to the formal fitting mechanism to choose and buy sunglasses.
Error two: lens deeper colors on eye protection.
Prevent ultraviolet light into the eyes, do not depend on the lens color concentration, but by Sunglasses material in ultraviolet absorbent to decide. If I wear no anti ultraviolet function is not tainted glasses, sunglasses and more dangerous, because the body has a self-preservation instinct reaction, when eyes meet when a bright light, the pupil will naturally becomes small, made into the eyes of the UV energy reduction, once wore no uv protection sunglasse, will make the pupils, plus this kind of glasses without ultraviolet isolating effect, when the eye is open, no ultraviolet invasive, and energy is greatly increased, damage to the eyes one can imagine.
Error three: children can long time wearing sunglasses
Children of the pupil to light stimulation response is more sensitive to bright light, the pupil of the eye will rapidly reduce children and reduced into the eyes of light, so as to play a protective role in light; at the same time, the children s eyes have a strong ability to adapt, even with some fake sunglasses, children can quickly adapt to the feel uncomfortable; in addition, 6 years old of the following children ‘s visual function has not yet mature, if worn for too long, macular area relative to cannot get effective stimulation, may influence the visual perception of further development, and even the formation of amblyopia. Therefore, in the strong sunshine when need to wear sunglasses, in general do not for decoration and to children wearing sunglasses.
Error four: the old man had better not wear sunglasses
Wearing sunglasses with no ocular disorders in the elderly, is a positive eyes, especially wearing sunglasses can prevent senile cataract, pterygium occurred. Of course, there is a family history of glaucoma in the elderly should be paid more attention, once the incorrect or wear long, easily induced by eye.
Error five: eye patients must go out wearing sunglasses
For eye diseases, choose to wear sunglasses must discreet, such as cataracts, keratitis, conjunctivitis, retinal detachment and other patients, the sunglasses, has a protective effect, especially for patients with keratitis and dry eye patients tend to be afraid of light, with tears, with sunglasses to avoid strong light stimulation. However, the following three categories of patients is particularly suitable for wearing sunglasses, otherwise it will aggravate the preexisting ophthalmopathy, respectively is: in patients with glaucoma, night blindness patients, patients with color blindness.
First of all, there must be UV protection Sunglasses logo. Therefore, the purchase of sunglasses, should choose a lens or packaging of a” 100% UV protection”,” UV400″,” ultraviolet” and other markers of glasses.
Secondly, the lens color choices should be based on the ambient color distortion, the edge of the object is clear, can effectively identify the different color lights for the principle, lens color to gray, brown, green is good, because the color of the lens of the infrared, ultraviolet absorption better.
In addition, Sunglasses UV function and lens materials, technology and other factors. Although, the lens becomes darker shading effect is strong, but does not indicate UV stronger ability. Lens with medium depth as well, of course, if the shading effect is very strong, should choose the darker color lens. But the ride or drivers cannot choose too deep color lens, otherwise it is very difficult to identify the color of the traffic light.
Do
Some people like to wear sunglasses, regardless of time and place, outdoor or indoor, even the dusk, watching movies, watch TV all wearing it, it will increase the strain to the eyes, causing muscle tension, blurred vision, severe dizziness, there will be not long considered symptoms. These symptoms are caused by the abuse of sunglasses.
from up artilce, can you know about uv protection sunglasses more? So, if we buy sunglasses, we should know that does the sunglasses is uv protection sunglasses
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