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The sun glasses to choose skills worth a look

by:Eugenia     2020-08-18
In recent years, color, different styles of sunglasses was deeply the favour of fashionable men and women, not only to protect the eyes, more as a decorative accessories. But it is important to note that not everyone is suitable for wearing sunglasses, and sunglasses to choose knowledge, choose wearing inappropriate is likely to cause harm to the eyes. The following several ways should not be wearing sunglasses 1, glaucoma should not be wearing sunglasses. After wearing the sunglasses, reduction of visible light entering the eye, the pupil will naturally open, cause narrow anterior chamber Angle, causing the aqueous humor drainage poorly. After a long time, easy to induce acute angle-closure glaucoma, jealous, eye pain, headache, eyesight drops sharply, even accompanied by systemic symptom such as nausea, vomiting. So, glaucoma patients or suspected patients with glaucoma should not be wearing sunglasses. 2, the place with weak light shoulds not be wearing sunglasses. Some people regardless of time and place, whether in the outdoor or indoor, regardless of the sunlight intensity, even during the evening and in the evening, when watching a movie, TV also wearing sunglasses. Doing so will increase burden of eye, eye muscle tension, blurred vision, serious when still can appear dizziness, cannot long symptoms such as visual fatigue. Children under the age of 3, 6 should not be wearing sunglasses. Children under 6 years old of visual function is not yet mature, wearing sunglasses in the long run, fundus macular area cannot be effectively stimulate, will affect the further development of visual, even form amblyopia. 4 to wear big frame sunglasses, take care. Many fashionable young people now have partial loved edge width, thickness, weight heavy large frame sunglasses, in fact, this kind of glasses for 1 ~ 2 weeks, Dai Jingzhe will appear eye socket or between two cheek numbness, perception of slow wait for a symptom, have nasal breathing discomfort feeling, like had a cold. There are those who feel like there's little bugs crawling on the face, upper gum numb, front teeth feel discomfort, eyes acid bilges. Feeling of this is due to the person's face is mainly dominated by trigeminal nerve, trigeminal nerve is under the orbit of the edge of the eye socket hole under the orbit of wear out, thick, wide edge, weight heavy sunglasses tend to live under the orbital branch of trigeminal nerve, triggering sunglasses syndrome. Sun glasses to choose knowledge selection skills more glasses sunglasses factory network, experts say, the sun glasses to choose very learned, improper choice to cause damage to the eyes, so I pay special attention to when choosing sunglasses. Low to normal optician should choose normal manufacturer production sunglasses with uv protection functions. Small street vendor, vendor selling glasses, often cannot achieve the standard of uv protection, good not to choose and buy. Low when the choice to pay attention to the lens surface is smooth, no ripples, no defects, no bubble, no grinding crack. Lenses to flat, from horizontal direction observation lens without warp. Uneven or signs of unfavorable choose and buy, bubble lenses. Lens color choices, should be put on after the distortion of the color of the surrounding environment, the edge of the object is clear, can effectively identify the different color lights for the principle. Lens color shades of choice, should depending on the activity place, generally at a moderate depth of well, such as light gray, light brown, light green, the color of the sunglasses for infrared, ultraviolet absorption is good. If required, of course, shading effect is very strong, you should select the darker lens. But cycling lenses or drivers can't choose the color is too deep, otherwise cannot effectively identify different colors of traffic lights. In addition, when the choose and buy sunglasses have to consider and size, face, eyebrows, eyes, nose, the matching relationship between. Usually, people want to choose a big picture frame sunglasses with big eyes, small eyes some choice some sunglasses frames; Round face fat people wear bulky frame sunglasses, slender face for circular frame sunglasses, oblate, appropriate chooses and narrow face people square frame sunglasses. Of course, if the face computer every day, you can also choose to with the function of radiation protection glasses sunglasses.
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