Well, the U.S Food and Drug Administration regulates UV-emitting tanning beds as electronic products and not drugs.
UV-blocking contact lenses protect the inner structures of the eye including the cornea, the iris, the lens and the retina.
UV-blocking contact lenses have been around for more than a decade, but have gained in popularity in recent years.
Examples include omega-3 in food, VOC-free interior paints, minimalist shoes, healthful apps in consumer electronics, health-promoting mattresses and UV-protecting sunglasses.
's Avaira and ClearSight product lines meet Class 2 standards, in which 70% of UV-A and 95% of UV-B is blocked.
Despite direct proof of efficacy, it is logical to think UV-blocking contacts will help keep the eyes healthy, optometrists say.
The Isku FX features off-white UV- coated keys and your choice of backlighting in 16.8 million colors and 6 adjustable brightness levels.
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Some Class 2 lenses beat the standard: Avaira, for example, block at least 75% of UV-A radiation and 99% of UV-B radiation, according to the package insert.
Only a limited number meet Food and Drug Administration standards for "Class 1" protection, in which 90% of UV-A radiation is blocked and 99% of UV-B radiation is blocked.
Stibich showed that a high-energy form of UV called UV-C could kill C. diff, in either its active state or as a dormant spore protected by a tough seedlike shell.
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Vitamin D is incorporated in the body when skin is exposed to sunlight of a certain wavelength but in the UK, during winter months, UV-B radiation can be insufficient to properly support vitamin D synthesis in the body.
Xenex uses harmless xenon gas to blast a broad spectrum of UV wave- lengths in all of ten minutes.
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To the long list of great ideas gone bad, add the UV Waterworks--a simple, cheap device to purify filthy drinking water in poor countries.
It was also a big week for lighting news as we learned that compact fluorescent light bulbs emit potentially harmful UV radiation -- another good reason to make the switch to LEDs.
Holick gives speeches to salon owners and receives some research funding from the industry-funded UV Foundation.
High pollen counts and - as you'd expect - high UV levels will be a feature on most days.
If this (topdown) manufacturing process is to be based on the most modern forms of deposition (including epitaxy), e-beam or ultra-deep UV lithography and precision etching, the mainstay of microelectronics and optoelectronics fabrication, then there are strict limits described below for which one-off fabrication is possible, but manufacture is not.
But the increased ultra-violet (UV) solar radiation which the damaged ozone allows through to the surface of the earth is a threat to all living things.
Thomas also notes that many shallow-water species went extinct during this epoch, lending credence to the idea that GRB-precipitated solar UV radiation could have been the cause.
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An article in the Journal of Geophysical Research, published by the American Geophysical Union, says the Arctic damage threatens to "allow the penetration of enhanced UV radiation at northern mid-high latitudes".
The biggest action-adventure superstars from around the world reunite in the next chapter of The Expendables franchise, The Expendables 2, exploding into homes on Blu-ray Disc (plus Digital Copy plus UV), DVD (plus Digital Copy plus UV), Digital Download, On Demand and Pay-Per-View November 20 from Lionsgate Home Entertainment.
The museum is newly illuminated by 3, 800 individual LED lights, which lack the paint-destroying heat and UV rays of incandescent bulbs.
Consumers who are unsure about UV blocking in lenses can ask the optometrist for the FDA-approved package insert.
"Oxybenzone is one of the few FDA-approved ingredients that provides effective broad spectrum protection from UV radiation, and has been approved for use since 1978, " said Dr. Daniel M.
Orb-weaver spiders attract insects to their webs with ultraviolet (UV) decorations, according to a new study.
Window coatings that block UV rays also give the option of natural light while minimizing its clothing-fading side effects.
Dr. Costarelis advises his patients to eat a nutrient-rich diet and stay out of the sun, because UV rays damage hair.
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Furthermore, we believe the DVD (and broader optical disk) category has already entered a long-term decline (analogous with peak-to-trough decline of VHS and CD categories), caused by rapid growth in on-line streaming and a la carte rentals (though we admit that UV has been a bit of a disappointment, so far).
"Not only is it important in promoting local public health and well-being, it also helps to spread the message about the dangers of sunbeds and UV exposure, " he said.
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