Frequent question: What are Category 5 sunglasses?

What category are my sunglasses?

Category 0 is a clear or very light tint lens – mainly used for impact protection. Many Safety Eyewear glasses have a clear lens. Category 1 is typically a yellow or pale / light tint.

What do sunglass categories mean?

VLT Category Lens Tint
80-100% None or very light tint
43-80% 1 Light tint
18-43% 2 Medium tint
8-18% 3 Dark tint

What is the best UV category for sunglasses?

What UV level should sunglasses be? The higher the rating, the better, so look for sunglasses labeled UV 400, which provides nearly 100% protection from harmful ultraviolet light rays. UV 400 protection lenses block wavelengths up to 400 nanometers.

What is the darkest lens on sunglasses?

A Category 3 lens is the darkest pair you can get that will let you safely drive — but if you’re not hopping behind the wheel, a Category 4 lens blocks the most visible light and may be more comfortable for you.

Which type of sunglasses is best?

For comfort and safety, choose sunglass lenses that are both impact resistant and scratch resistant. 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.

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How do I get good quality sunglasses?

To help keep your eyes healthy, keep these tips in mind when buying sunglasses.

  1. Don’t settle for less than 100% …
  2. Darker sunglasses don’t always mean they offer more UV protection. …
  3. Polarized lenses reduce glare, but don’t block UV rays. …
  4. Do a lens quality check. …
  5. Size does matter. …
  6. Color doesn’t matter.

How do I get the best sunglasses?

How to Choose the Best Sunglasses: Six Things to Consider

  1. Make it 100 percent. …
  2. Bigger is better. …
  3. Darker lenses don’t protect better. …
  4. Color doesn’t matter. …
  5. Polarized lenses cut glare, not UV. …
  6. Cost shouldn’t be a factor.

How dark should my sunglasses be?

Sunglasses should screen out 75-90% of visible light. To determine if a pair is dark enough, try the glasses on in front of a mirror. If you can see your eyes easily through the lenses, they probably are too light.

What does UV 400 mean?

‘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 UV 400 good?

Sunglasses labeled UV 400 provide nearly 100% protection from harmful ultraviolet light rays, blocking wavelengths up to 400 nanometers, including UVA and UVB rays.

Do cheap sunglasses protect from UV?

Namely, cheaper sunglasses brands can offer a lower level of UV protection. … For example, some clip-on sunglasses brands are under $20 but offer UV 400, the maximum level of protection. That being said, cheap sunglasses usually do offer some kind of UV protection — it’s just a matter of how much.

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Is UV 400 the same as 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.