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Not all sunglasses are created equal, just as not all cameras, microwaves, cars, etc. are as good as others. Although most sunglasses now offer UV ray protection, there are different classifications of UV proection, just as in suntan lotions. Many of the cheap sunglasses offer the least protection, and use a spray-on film on the surface of the lens to achieve this. This allow the protection to scratch or wear off. Quality sunglasses have this technology integrated into the lens itself. Additionally, most cheap sunglasses to not offer polarization, a feature which allow much of the sun's glare to be filtered out. The cheap ones that do claim this also use a surface layer for the polarization.

2006-08-07 19:13:22
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What color sunglass lenses blocks the most light?

the color of the lenses doesn't matter. It's the amount of protection on them. Often there is a sticker on the lens when you first buy the sunglasses that will tell you the amount of protection they offer. The higher percentage, the better!

What is the difference between the replica sunglasses and authentic sunglasses?

Replica sunglasses are usually cheaper "copies" of authentic branded sunglasses such as Gucci, Diesel or Prada etc. Replica sunglasses can vary in quality. If you purchase a pair of replicas from a market stall or from a "$2" shop, the chances of your sunglasses meeting the UV protection safety standards are very slim. In Australia, there are currently 5 categories based on the amount of light that the lenses absorb with 0 (zero) providing minimal protection from UV radiation and sun glare and 4 providing a high level of protection. The most common authentic/designer sunglasses available will have either a category 2 or 3 lens. A category 4 lens may be too dark to use for driving and may come with a warning. All designer sunglasses are required to supply information for their lenses so that the consumer knows how much protection they'll be getting. Because of these regulations, it is safer for the consumer to purchase their sunglasses from a reputable company rather than from a market or a "$2" shop where the products aren't properly regulated.

How to Choose The Right Sunglasses That Will Match Your Face Shape?

Sunglasses are fashionable, and they also provide protection for your eyes against harmful UV rays. Wearing sunglasses when you go out will help in reducing the risk of developing cataracts and other eye problems caused by overexposure to the sun. Sunglasses have been around for quite some time, and depending on the latest trends, they vary in size, shape and style. However, despite the differences and the wide array of choices, you need to keep in mind that it would be best if you purchase sunglasses that will match the shape of your face. Follow these steps to pick the right pair: • Determine your budget. Before choosing the right sunglasses for you, you need to determine your budget. Know how much you are willing to spend for your sunglasses, so that it will be easier for you to choose the sunglasses within your range of budget. • Determine the shape of your face. Once you have already determined your budget, you need to know the shape of your face, so that you can avoid the types of sunglasses that won’t look good on you. • Check the styles of sunglasses that will compliment the shape of your face. Once you have determined the shape of your face, you can check out the sunglasses that will compliment your face. If you have a round face, it would be ideal to choose sunglasses with square frames or rectangular frames. If you have an oblong face, you are lucky, because just about any style of sunglasses will look good on you. • Choose sunglasses with the right amount of sun protection. You don’t have to get very dark sunglasses, but rather you should consider sunglasses with the right amount of sun protection in order to protect you from the harmful UV rays. Aside from local shops, you can also purchase your sunglasses online. Try checking out online stores that sell sunglasses with sun protection. Despite the trend, it doesn’t look good to wear extra large sunglasses, because they will just make your face look smaller.

Which form of hearing protection offers the highest amount of protection?

Earmuffs (over-the-ear protectors) offer the greatest amount of protection.

Why do polarized sunglasses reduce glare while unpolarized sunglasses cut down the amount of light reaching the eye?

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Does the price of popcorn affect the amount of unpopped kernels?

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Usually the quality of a note is the amount of time you are supposed to hold it out for

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Which body cavity affords the least amount of protection to its internal organs?

The abdominal cavity has the least protection for its internal organs.

Which mopp level provides the maximum amount of protection?


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Well the temperature, the amount of sunlight, the amount of water, the quality of the soil , and the quality of the air would all affect this.

Can it lower the amount of sperm that comes out of the male by increasing the amount of sex?

No, not the amount but the quality. That is why couples trying to get pregnant shouldn't do it everyday.

How is the quality of a pearl judged?

this pearl is judged by its thickness and the amount that you can get out of it

I have a pair of sunglasses that are glass lens and if they are scratched would that affect its ability to block UV rays?

Ever so negligibly. If the protective coating is scratched a bit in places, you'd probably have a smidgen of UV rays drifting in. However, glass alone provides a modest amount of UV protection. It shouldn't be much to worry about.

What does the number mean on sun tan lotion?

it means the amount of protection you get from the suns rays

Which offers a person the least amount of protection during a lightning storm?

a stand of trees.

What Nerf gun should you buy?

The stamped it has the right amount of protection and gun power

When offers a person the least amount of protection during a lighting storm?

A lightning rod

What car batterry has the longest life?

Diehards in general are well known for their quality for the amount of money. Optima batteries are also of good quality.

Sp 16 what is that?

Sun Protection factor 16 is the amount of protection against the sun the cream or other product has Sp1, is very little protection Sp16 would be very good, total block is up around SP36

Did lords employ peasants?

No, peasants worked for free, in return for a small amount of land, and protection

When one country can produce a product more cheaply than another country. what can this be called?

When one country can produce a product more cheaply than another country this is called comparative advantage. When one country can produce more goods than another using an equal amount of resources, this is called absolute advantage.

When using a sunscreen can you still get a tan?

Yes. The purpose of sunscreen is to lengthen the amount of time you can be in the sun before tanning starts. Also, SPF 15 provides the maximum amount of protection. Any higher SPF number does not provide any additional protection.

What is resolution dependent?

Resolution dependent is an image that is composed of a particular amount number of pixels. The quality of the image that is produced depends on the amount of pixels.