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Enjoy Your Fishing Day With Protective Polarized Sunglasses.
Sunglasses with polarized lenses are the best available due to their ability to dramatically reduce glare.
Any surface can be a source of glare: water, sand, wet or dry pavement, buildings, windshields, ice, snow. Glare can be 7 to 10 times brighter than ambient light and can be as much as 65% of the light seen. Simply, just the dark lenses do not eliminate the problems of glare. Darkly tinted lenses reduce brightness, but they do not reduce glare like a polarized lens. In fact dark lenses without added UV protection could conceivably cause more damage to the eyes than if they were wearing no sunglasses at all. Here is why, a dark lens can cause the pupils to dilate and let in more light, also lets in more UV. Polarized lenses minimize glare and UV transmission.
Benefits
Lenses reduce glare, not brightness, allowing greater transmission of light for better vision.
Polarized sunglasses are designed to fight the glare coming from high glare water surface. Polarized lenses are very helpful when driving to reduce those annoying bright reflections of the sun on the cars ahead, the glare on your car or the road. The reason is that the surfaces that you see on the car in front of you (the back window, the trunk door, and even the roof) will be slanted towards you, while the sun will be more or less aligned in the vertical plane through both cars. The sunglasses will help more with the reflections from the glass than from the metal as the former are polarized to a higher degree. The direction of polarization will change with the direction of the road with respect to the position of the sun. If the sun is in front, behind, or high above, the road brightness will tend to be horizontally polarized and the filter of the sunglasses will help. Of course, if the road is wet you get the same anti-glare power than at sea.
Who Should Wear Polarized Sunglasses?
Traditionally, polarized lenses have been recommended for people who participate in water sports such as boating and fishing. The lenses can allow them to see past the surface of the water by reducing the reflecting glare. People participating in other outdoor activities such as tennis, golf, running, skiing and biking, can also benefit from polarization. The reflections off the court, snow, sand, or road can result in an enhanced visual comfort that cannot be realized with non-polarized lenses.
Most People Can Benefit
Polarized lenses have features that can a benefit anyone who wears sunglasses. They improve visual comfort and reduce eye strain by reducing reflecting glare. Because haze has the effect of horizontally polarizing overhead sunlight, vision through haze will be improved with polarized lenses. The reflected image of the dashboard off the windshield of a car can be a distraction when driving on a sunny day. Polarized lenses will nearly cancel this reflected image, providing an uninterrupted view from the windshield.
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Effects of UV Radiation
It is well known that UV radiation can cause skin damage, but many are unaware of the potential danger UV radiation has on the eyes. Recent medical literature has expressed concern about the potential eye damage caused by long term exposure to ultraviolet light. To protect our eyes, we need sunglasses that eliminate glare from reflective surface and reduce UV light transmission. Polarized sunglasses are an excellent way to eliminate both glare and UV light.
Some Frequently Asked Questions:
1. What is the difference between a polarized lens and an ordinary tinted lens?
While ordinary tinted lenses reduce brightness, only polarized lenses eliminate glare.
2. Do polarized lenses provide U.V. protection?
Polarized lenses afford 99% absorption at 380 nanometers.
3. Can polarized sunglasses have AR coating?
Yes, however it is generally recommended that only the back side of the lens is coated to minimize the halo effect from light entering from behind.
4. Can polarized sunglasses have Mirror Coating?
Mirror coating can be used to enhance polarized lens protection or to make a fashion statement. These lenses can also reflect heat and come in various colors. A blue mirror coating over grey polarized lens is a popular general purpose choice.
5. Are polarized sunglases UV protective?
Most polarized lenses offer inherent UV protection from UVA and UVB rays.
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