4inchto mm

“It’s possible to develop keratitis, which is like sunburn on the eye,” Dr. Erwin cautions. “Long-term exposure to UV rays can increase the risk for cataracts, macular degeneration or cancers around the eye.”

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You may also have to consider the color of your lenses. For example, choosing sunglasses with gray lenses will also provide the least color distortion, while yellow lenses improve contrast (but don’t usually help with the sun).

3.5 inchesto mm

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“There is no difference in sun protection between different styles of lenses as long as they are all UV protective,” Dr. Erwin says. “Appropriate lenses will generally say UVA/UVB or UV400.”

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4.5inchtocm

If you choose to go with non-polarized sunglasses, you won’t have that anti-glare protection. But overall, Dr. Erwin says you should make sure your sunglasses have UV-protective lenses.

Though usually more expensive, these lenses are an optimal choice for those who drive often or spend a lot of time by the water.

5"in mm

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While it may seem harmless, showering — or even swimming or washing your face — with contacts in can cause sensitivity to light, irritation and even an infection

“Polarized lenses do a fantastic job of removing glare while driving and boating, making the world look crisper and clearer than sunglasses alone,” says Dr. Erwin.

When shopping for sunglasses, he advises taking the time to ensure you’re purchasing a pair that is stylish, comfortable and offers the best protection from the sun for you and your needs.

It all depends on how you’ll wear your sunglasses. If you’re outside a lot, it may be the better choice, as polarized lenses offer more benefits than non-polarized. But it’s all about personal preference.

5.5 inchto mm

Hence to convert it to mm, to calculate the corresponding millimeters of 4.5 centimeters, just multiplying 4.5 into 10 times is equal to 45 mm.

How many mm in 4.5 cm? - Are you a person trying to convert 4.5 Centimeter to mm? You have landed at the right place! Our tool can convert 4.5 cm to mm at ease without any time delays! We consider the traditional calculation where 4.5 cm equals 45 mm.

But with countless styles and prices to choose from, how do you know which is the best choice — and offers the best protection? When it comes to polarized vs. non-polarized sunglasses, which ones should you get?

While there are plenty of benefits when it comes to polarized sunglasses, there may be certain occasions where non-polarized options may be best:

4.25 inchesto mm

“Polarized sunglasses are great for anything from an easy hike to a day of boating,” says Dr. Erwin. “Your eyes will be more comfortable, and the colors will pop.”

Polarized lenses have a special coating that reduces glare, especially on reflective areas like water, asphalt or snow. This is especially helpful when you’re driving. And if you’ve had refractive eye surgery like LASIK, polarized lenses are a great choice.

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5inchesto mm

“Larger glasses are generally better, as they offer more protection from UV rays from odd angles, such as above or from the side,” he says.

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4.5cmto mm

Polarized lenses have an added benefit of a special coating that reduces glare on reflective surfaces like water and snow

The plain answer is ‘no’ — ingredients meant to clean and disinfect your contact lenses can cause irritation, redness or dryness to your eyes

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When the weather is glorious and all you want to do is soak up the sun, you still need to take protective measures for your eyes by wearing sunglasses.

And whether you choose polarized or non-polarized sunglasses, remember that you want to make sure your option has UV protection — UV rays can affect your eyes both in the short and long term.