What kind of sunglasses you need when driving a car?

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When you are selecting sun glasses suitable for driving a vehicle, you need to take into consideration few important things. These issues apply both to sunglasses with and without prescription.

I have noticed that people often wear sunglasses with wide ear pieces when driving a vehicle. These are not the best option, as the ear pieces make it more difficult to see on your sides and narrow your field of vision. The frames should be, however, wide enough to give adequate protection against sun light.

First of all, sunglasses for a driver should protect eyes against UV radiation and reflections. Good sunglasses also improve contrast, which makes objects stand out from the background. The lens must also be optically flawless, meaning that the lens must not make any distortions at all.


Good colors for the lenses are brown, grey or green. My personal favorite is brown, as it makes the objects stand out from the background. You can find your own favorite color by testing different lenses.

The sunglasses for a driver must not be too dark. If they are, the vision might worsen if the weather becomes cloudy, or if you drive in the shadows of trees, for example. The protection class for the glasses must not be more than 3, which means that light penetration percentage is around 8-18 percent.

The best option is polarized lens, with or without a darkening feature. Polarization effectively prevents disturbing reflections coming from wet surface of the road particularly common when sun is not very up in the sky.

The sunglasses should also have a non-reflective surface on the back, as it prevents reflections from the front surface of the lens that disturb the vision.

The prices for sunglasses vary from few dollars to hundreds of dollars. Polarized sunglasses are usually more expensive.

Please note that the advice and tips given in this blog are based on Finnish regulations and laws. Therefore, you need to verify the regulations and laws in your country from your own optician, optometrist or eye specialist.

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