‘UV400’ refers to UV rays at the top end of the UV spectrum, up to the 400-nanometre wavelength. Sunglasses with this level of protection block an even wider spectrum than the CE and British Standard models, making them the ultimate protection for your eyes.
Is UV400 protection enough?
But how much protection is enough and what does UV 400 mean? Sunglasses labeled UV 400 provide nearly 100% protection from harmful ultraviolet light rays, blocking wavelengths up to 400 nanometers, including UVA and UVB rays. Ultraviolet, or UV, rays are electromagnetic radiation from the sun.
How good is UV400 sunglasses?
Investing in sunglasses that are labeled UV400 blocks 99 to 100 percent of UV light. This rating ensures that all light rays with wavelengths up to 400 nanometers, including both UVA and UVB rays, are blocked out.
Is UV400 the highest protection?
The answer lies within the numbered rating, and the highest UV protection rating offered is UV 400. According to the American Academy of Ophthalmology, you should choose sunglasses that block 99% to 100% of UVA and UVB rays, and UV 400-protected sunglasses do this.
Is UV400 better than polarized?
UV400 protection provides our eyes with the highest level of protection. It blocks out 100% of all harmful light from the sun including harmful UV rays. Polarized lenses use a special film to further filter reflected light and reduce glare from smooth surfaces.
Is 100% UV protection the same as uv400?
Look for a label that says “100% protection against both UVA and UVB” or “100% protection against UV 400.” … So while they may filter out ambient light and glare, that additional exposure to UV rays increases your risk for cataracts, macular degeneration, and even development of ocular melanoma—a rare cancer.
Which is better polarized or UV protection?
While UV protection lenses shield your eyes from the harmful sun rays, polarized sunglasses eliminate glare that causes discomfort. What’s more, having ultraviolet protection is crucial to ensure healthy peepers, whereas polarization is more of a preference (assuming you want blinding glare to penetrate your eyes).
How much should I pay for sunglasses?
With a wide range of budget sunglasses brands, expensive pairs from known brands, and those that are somewhere in the middle, you can spend anywhere from $50 to $500. However, is spending hundreds of dollars for a pair of the most expensive sunglasses really worth it, or are you solely paying for the name?
At what UV index should you wear sunglasses?
When should I wear them? Sunglasses should be worn at all times when outdoors during the day when the UV index is 3 or above as there is no defined “safe level” of eye exposure to UV radiation. They should also be worn regardless of cloudiness, as more than 90% of UV rays can penetrate through cloud.
IS 100 UV protection same as polarized?
But “UV protection” and “polarization” definitely aren’t interchangeable. Despite what many people believe, the two actually have nothing to do with each other. The difference between UV protection and polarization comes down to the science of light waves and how different filters interact with them.
What is best sunglass protection?
Polycarbonate lenses usually are the best choice for sunglasses because they are lightweight and significantly more impact resistant than lenses made of glass or other materials.