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How to choose the right pair of sunglasses for summer travel?

Posting time:2022-12-03 09:41:54

How to choose the right pair of sunglasses for summer travel?

Editor's note Recently, many places in my country have turned on the "high temperature mode". In addition to heat, another feature is the sun. The "bathing" in the sun, mainly refers to ultraviolet radiation (including UVA, especially UVB). Ultraviolet rays can damage the surface tissues of people's eyes, the cornea, and the lens. Over time, this damage can lead to cataracts, macular degeneration and other vision-stealing eye diseases. Wearing sunglasses when going out is one of the effective ways to protect people's eyes from UV rays. So, how to choose sunglasses to better protect your eyes? What are the misunderstandings and skills in choosing sunglasses? Let's take a look with me. Avoid: Three Mistakes Myth 1: Dark sunglasses mean more UV protection When choosing sunglasses, don't make the mistake of thinking that darker lenses are safer for your eyes. Brown or rose lenses offer more contrast, but tinted lenses (like amber or grey) don't block as much UV rays; mirrored sunglasses are a thin layer of metal over regular sunglass lenses, although they do Reduces the amount of visible light entering the eye, but does not completely protect the eye from UV radiation. Again, while dark lenses may look cool, they won't necessarily block more UV rays. Myth #2: Polarized Lenses Block UV Light Polarized lenses are designed to reduce glare from reflective surfaces like water or roads. Polarized lenses don't provide any UV protection by themselves, they just provide a better visual experience for certain activities like driving, boating, or golfing. If you need to wear polarized glasses for certain activities, you can choose polarized lenses made of UV-blocking substances to ensure maximum UV protection. Myth 3: Expensive sunglasses, good UV protection Sunglasses don’t have to be expensive to be safe and effective. Sunglasses marked with 100% UV protection in an optical store/hospital are a better choice than sunglasses that are both stylish and functional. Remember: Four Tips Tip 1: 100% UV Protection When buying sunglasses, make sure it says they offer 100% UV protection, which protects your eyes from all UV rays. Some sunglasses have labels that say "UV absorption up to 400nm", which also means 100% UV protection. TIP 2: LENS QUALITY CHECK The lens quality of over-the-counter sunglasses can be checked by following these steps: Look for something with a rectangular pattern, such as a tiled floor; keep the sunglasses a comfortable distance from your face and cover one eye; slowly move from side to side Move the glasses, then up and down, to observe the rectangular line through the lenses. If the rectangular lines remain straight, the lens is of good quality. If the rectangular line is wavy (especially in the center of the lens), there is a problem with the lens, and you should get another pair of sunglasses. Tip 3: Lens size matters. Sunglasses should choose the largest possible lens to protect the eyes from sun damage. Consider buying oversized or wraparound sunglasses to limit UV rays from entering the sides of your glasses and damaging your eyes. Tip Four: Consider the Risk of Lens Shattering While no lens is truly unbreakable, plastic lenses are less likely to shatter when hit by a stone or ball than glass lenses. Most over-the-counter sunglasses lenses are made of plastic material. For those who love sports, choose sun lenses made of polycarbonate plastic, which are particularly tough, but they can be easily scratched without a coating, so polycarbonate lenses are often scratch-resistant coating. Reference: https://www.aao.org/eye-health/glasses-contacts/sunglasses-3

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