Polarized sunglasses also do a great job of protecting your eyes from glare. They’re a fine option for driving and help minimize eyestrain. Mirror sunglasses reduce glare - from the road, your car hood and other cars - better than sunglasses with standard, non-reflective lenses. SEE RELATED: Choosing the best sunglasses for an active lifestyle Mirror sunglasses and driving Mirror sunglasses are an excellent way to protect your eyes from such reflected light rays. Keep in mind that if you’re wearing a hat, you may not be affected by direct sunlight from above, but you can still experience harmful glare from surrounding surfaces such as water and rocks. It’s important to wear the correct eyewear, even if it’s early in the morning, as the UV rays are already doing their work. Other activities like hiking and cycling can also involve spending hours in the sun. Mirror lens sunglasses are a great option for skiing, watersports, sandboarding and flying sports such as microlighting and gliding, where glare is a big factor that can affect both your efficiency/performance and safety. This extra non-scratch layer also serves to strengthen the sunglasses a little more. If not, this can be applied at a later stage, which is certainly worth considering if you use your sunglasses frequently. Some brands come with an additional scratch-resistant layer. However, they do tend to scratch and need a lot more care. The thin metal layer offers a higher level of durability in your mirrored sunglasses. These sunglasses are also an excellent option for certain sports and outdoor activities, particularly those involving snow, water or sand. Other benefits include durability and style - many users consider them a fashion statement. Unlike many other types, though, these feature a special anti-reflective coating on the outside of the lenses that bounce light rays and glare away from the sunglasses and your eyes. Why mirrored sunglasses?Īs with all sunglasses, mirror shades can help protect your eyes from the sun’s damaging rays. If the lines stay straight and don't distort, you know you have a good quality pair of glasses. Scan a rectangular tile or lines on the floor by moving the glasses slowly from side to side and up and down. How do you test the quality of non-prescription lenses? First, close one eye and hold the sunglasses at a comfortable distance. It’s important to note that darker lenses don’t necessarily block more UV rays - the UV-protective chemicals are added to the lens during the manufacturing process, so they have nothing to do with lens color or degree of darkness. It’s just as important to wear your shades when skies are overcast, as UV rays can penetrate cloud cover - meaning you can still experience glare from light bouncing off reflective surfaces, even if your surroundings are dimly lit.īe sure to select sunglasses, including prescription sunglasses, that offer 100% UV or UV400 protection. Wearing sunglasses whenever you’re outdoors during the daytime is the best solution for protecting your eyes. Without proper protection from light rays that reflect off surfaces like snow, sand or water, photokeratitis (a corneal sunburn commonly called snow blindness) can also occur with surprising speed. UV protectionĪccording to the American Academy of Ophthalmology, UV light can harm your eyes and potentially cause cataracts, eye cancers and growths such as pterygium. From there, you’ll want to consider any safety and performance needs for your chosen outdoor activity - if you’re playing a sport that requires concentration, for instance, you want optimal vision - before tackling frame styles and the shape and color of the lenses. Of course, protection from harmful ultraviolet (UV) light should be your first priority when choosing any type of sunglasses. They are a great option for outdoor activities in very bright conditions where glare is a concern - for example, snow sports on a sunny day - as they can protect your vision by bouncing light rays off the lenses and away from your eyes. The lenses may look opaque due to the reflective coating, but they do let enough light through to help you see clearly with minimal eyestrain. This makes them like one-way mirrors when observed from the outer side of the sunglasses. Mirrored sunglasses have a thin metallic layer on the outside of the lenses that reflects glare away from the sunglasses rather than letting it in, reducing the amount of light entering the eyes.
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