Posts Tagged ‘Snow Blindness’
Snowboarding Sunglasses
Sunglasses with leather blinders at the sides that protect the eyes by blocking the sun's rays around the edges of the lenses. Typically, these have very dark round lenses. Because they provide extra protection from bright sun and light reflected by snow and ice, they are often used when mountain climbing, or traveling across glaciers or snowfields.
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Built Extra Relish Lunch Tote Average Rating:   |
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With the Built Extra Relish Lunch Tote youâll be able to eat a home cooked meal, where ever you roam. Save money and eat healthy by avoiding pricey restaurants and unhealthy fast-food. This lunch carrier not only looks good, itâs also quality Built... |
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Mighty Bright TravelFlex Book Light, Silver Average Rating:  |
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This ultra-compact book light is infinitely adjustable to provide the perfect reading or task lighting on the go. The TravelFlex LED book light clips onto books, magazines, maps, backpacks and more. Custom engineered reflector with an optical grade lens spreads light evenly so there are no "hot spots"... |
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Built NY French Bull Gourmet Getaway Average Rating:  |
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Bonnie and Clyde could have used Built's Gourmet Getaway if it had been around during the prohibition. This neoprene bag is the picnic basket of the future Larger than our lunch tote, the Gourmet Getaway can store many more delicious treats... |
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OPTX 20/20 Stick-On Bifocals Average Rating:  |
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Optx 20/20 Soft Reading Lenses adhere with water, yet are removable and reusable to provide optically correct magnification to sunglasses and prescription eyewear. Each stick-on lens serves as a bi-focal to be stuck on the bottom of a regular lens... |
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Nite Ize NGC-03-01 Rugged Glasses Case, Black Average Rating: |
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Integrated belt clip on a hard shell case keeps your glasses safe and accessible. Top loading design. Scratch-free fabric lined interior. Sewn in microfiber cleaning cloth. |
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Hd Vision Combo Pack Night Vision and Day Vision + Visor Clip Average Rating: |
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HD Vision Wraparounds Sunglasses/Night Vision Glasses Combo Pack HD Vision Wraparounds let you see with enhanced color and clarity just like high definintion TV's and at the fraction of a price of designer glasses... |
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ZZ Top - Live In Germany 1980 Average Rating: |
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Live In Germany features ZZ Top's 1980 performance at the Grugahalle in Essen for the German TV series Rockpalast. Hot on the heels of their classic Deguello album, the show sees ZZ Top in their essence as the 'lil ol' band from Texas' nickname in a set packed with their early hits... |
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A-Trak: Sunglasses Is a Must Average Rating: |
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This DVD is the long-awaited tell-all biopic about turntablism's boy wonder. Sunglasses Is A Must takes you from A-Trak's first purchase of turntables with bar-mitzvah money, up to all the battles he entered, all the continents he discovered, all the zoos he visited and all the wonderful people he met along the way... |
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Classic Trucking Films DVD: 1930s - 1940s 18 Wheelers, Big Rigs, Truck Freight Driving Films Including Transportation & Safety Films |
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The American Trucking Industry has been essential in the transportation of consumer goods and products and to the American economy ever since the development of the US highways systems in the 1930's. This collection looks at the history of American trucking and truck driving safety films... |
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Kenneth Cole Reaction Business and Luggage Columbian Leather Flapover Computer Case (Brown) Average Rating: |
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This classic styled leather briefcase by Kenneth Cole has all of the classic features you would expect from a briefcase along with a padded compartment designed to hold a 15" laptop. |
Check out these other great items Snowboarding Jacket.
Protection
Excessive exposure to ultraviolet radiation (UV) can cause short-term and long-term ocular problems such as photokeratitis, snow blindness, cataracts, pterygium, and various forms of eye cancer.Medical experts often advise the public on the importance of wearing sunglasses to protect the eyes from UV[4]. In the European Union, a CE mark identifies glasses fulfilling quality regulations. In the preparation for solar eclipses, health authorities often warn against looking at the sun through sunglasses alone.
There is no demonstrated correlation between high prices and increased UV protection. A 1995 study reported that "Expensive brands and polarizing sunglasses do not guarantee optimal UVA protection." The Australian Competition and Consumer Commission has also reported that "[c]onsumers cannot rely on price as an indicator of quality". One survey cited below even found a $6.95 pair of generic glasses with slightly better protection than Salvatore Ferragamo shades.
More recently, high-energy visible light (HEV) has been implicated as a cause of age-related macular degeneration, and some manufacturers design to block it. Sunglasses may be especially important for children, as their ocular lenses are thought to transmit far more HEV light than adults (lenses "yellow" with age).
Some sunglasses also pass ANSI Z87.1 requirements for basic impact and high impact protection. These are voluntary standards, so not all sunglasses comply, nor are manufacturers required to comply. In the basic impact test, a 1 in (2.54 cm) steel ball is dropped on the lens from 50 in (127 cm). In the high velocity test, a 1/4 in (6.35mm) steel ball is shot at the lens at 150 ft/s (45.72 m/s). In both tests, no part of the lens can touch the eye.
