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Lighting glare can come directly from a light source - like driving toward the sun - or be reflected. At times, the eyes are being subjected swissarmywatchofficers to ten to twelve times as much light as they need. When glare reaches these levels, it can be painful. Sunglasses swissarmywatchofficers help eliminate glare by absorbing or reflecting light. How much light the lens can absorb or reflect depends on the darkness of the lens and its coating. The amount of light sunglasses should absorb depends on how and where one plans to use them. Discomforting glare this first level of glare usually starts at about 3,000 to 3,500 lumens. The unprotected eye''s reaction to discomforting glare is a slight squint. Discomforting glare can occur in any weather, including overcast days. Even this mild glare causes eye fatigue. Lighter eye colors tend to be more sensitive. When light reaches the intensity of about 10,000 lumens, it actually blocks vision.

Green lenses only allow the most useful light to reach the eye for greatest visual acuity. They are the most preferred of all lens colors. Yellow lenses are a long time standard in the ski industry. Provides excellent depth perception and contrast in low light. Vermilion or rose these colors provide swissarmywatchofficers excellent perception in low light conditions while allowing a tolerable level of light transmission in bright sunlight. Used to contrast objects against blue and green backgrounds. . Basics facts about lenses swissarmywatchofficers all our sunglasses have optically correct lenses (and provide 100% uv protection). A person looking through a non-optically correct lens has to continually refocus due to distortion. This strain on the eye can eventually swissarmywatchofficers and swissarmywatchofficers lead to headaches, nausea and dizziness. Our optically correct lenses prevent these problems. These lenses are fixed in the percentage of light they absorb and appear as one color. They provide excellent glare protection and are a good choice for those who are often in bright swissarmywatchofficers sunshine.

It’s always best to place your sunglasses in a case when you aren''t wearing them. Not only will it help in venting them from becoming scratched, but it will also protect them from accidentally breaking, like someone sitting on them. Avoid placing your glasses without a case in your purse or pocket. Keys swissarmywatchofficers or combs can easily scratch them. When not using a case, do place your sunglasses on folded temples with the frame facing upward if you leave them on a table or any other hard surface. Cleaning clean dust and lint from your lenses with a soft cloth. An excellent suggestion is the cloth, which we stock in all of our stores. Using a micro clair will ensure that the lenses do not become scratched. To remove smudges, oils, and/or fingerprints, we recommend using a lens cleaner or washing the lenses with a swissarmywatchofficers mild soap and water.

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