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SPC lenses contain special horizontal polarizers or filters that reduce glare off water and flat roads. Glare is created anytime light meets a reflective surface such as inside your boat, water, sand, pavement or glass. Glare interferes with vision, dilutes colors and tires the eyes. They also help enhance colors and vision in high-glare situations. SPC Amber Lenses:
between colors and are the preferred for driving. This contrast also sharpens imagery. SPC Grey Lenses:
they also help to keep colors looking natural. SPC lenses are Impact Resistant: SPC lenses are lighter than glass, durable, virtually unbreakable material, safe to wear in active sports. SPC lenses are optically correct and less expensive than glass product. According to U.S. federal regulations, SPC lenses are impact resistant, but they do not provide a shatter proof or unbreakable barrier against eye injury. SPC polarized sunglasses are not safety glasses and do not provide unlimited protection against eye injury from severe impacts. Scratched and/or pitted lenses reduce vision and reduce impact resistance and should be replaced. Do not use SPC polarized sunglasses for night driving. UV: What are the differences between Ultraviolet A, B, and C rays? The Ultraviolet 'B' rays cause most of the damage to our eyes. The 'B' Rays are a major cause of cataracts. Ultraviolet 'C' rays are believed to cause cancer, but are typically filtered out by our atmosphere. Ultraviolet 'A' rays are the least harmful, though they to should be filtered whenever possible. On the short-term side, some of the typical effects of excessive UV exposure are known as "welder's flash" and "snow blindness". These conditions are both caused from the cornea being exposed to excessive amounts of UV radiation over a short period of time. Just think of it as getting your eyes sunburn. Similar to sunburn, it does not feel painful right away but after a short period of time; the pain gets extremely intense and then disappears after a few days. The sensation has been described as a feeling similar to having sand in your eyes. These symptoms are typically caused by long hours of unprotected exposure to the sun at the beach, sailing and boating. Red eyes, tearing, and eye irritation are all symptoms of short term over exposure. These symptoms are not normally associated with permanent vision damage. The long-term effects of UV radiation slowly cause visual impairment over long periods of time. These changes are not immediately noticeable but are far more devastating to the health of your eye. What is UV400 and what does it mean? UV400 means that the lens blocks all lightwaves 400 nanometers and below. 400 nanometers is typically referred to as the point where UV light starts. Anything below 400 nanometers is considered to be in the ultraviolet range. SPC polarized sunglasses block 400 nanometers and below providing protection against UV light. SPC polarized sunglasses provide 100% protection from harmful UVA and UVB rays. Important Information for Plane Pilots: SPC polarized lenses can block the reflected light of LCDs. These are the lights in many plane dashboards, bank automated tellers, and other electronic devices all over the places we go. If you use a PDA, Laptop Computer, or have an electronic dashboard, you may want to check and make sure that the SPC polarizing lenses will not block out LCD light. Airplane pilots should be aware that certain lenses of the sunglasses industry can reduce their visual performance in specific flight environments and increase the potential for accidents. Looking through a laminated aircraft windscreen while wearing SPC polarized lenses can result in a reduced image. Airplane pilots should not use SPC polarized sunglasses. They can use our SunLook Special Edition Glass Lens Pilot Sunglasses™ (SL SE Pilot™). SPC polarized sunglasses need proper care: SPC polarized sunglasses need proper care and maintenance for a long life. To clean your glasses, first blow off any particles. Do not store your sunglasses in direct sunlight, such as the dashboard of your car.
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