Despite what some people think, polarized lenses do not protect againstultraviolet (UV) lightfrom the sun.

However, it’s possible for you to get polarized sunglasses with UV protection.

Polarized sunglasses arent necessarily better than non-polarized sunglasses.

Advantages of polarized sunglasses

Verywell / Brianna Gilmartin

While they can be helpful for some activities, they may not be the best choice in other situations.

What Do Polarized Sunglasses Do?

Glare is caused when light hits a reflective horizontal surface, causing light beams to be scattered horizontally.

Polarized lenses counteract glare through a special chemical applied to thelensesin a vertical pattern.

The vertical orientation of the chemical utility is what blocks the horizontal light.

A high-quality pair of sunglasses will almost invariably have polarized lenses.

Thebest sunglasses to protect your eyesare ones that come with UV protection.

What Are the Benefits of Polarized Sunglasses?

Polarized lenses themselves do not block UV light from the sunwhich can damage the eyes.

They are simply designed to prevent glare, not only during the day but possibly at night as well.

The color or darkness of the lens doesnt mean the lenses are better or worse at blocking glare.

Both can be equally effective.

With that said, some colors are more useful in certain situations.

There is always some degree of tinting, even if the shade is light.

When Should You Wear Polarized Sunglasses?

Glare has been linked to many pedestrian deaths and traffic accidents.

The chemical processes used to make the lenses are vertically oriented.

Polarized lenses arent right for every situation.

If youre driving at night or using LCD devices, the lenses cause dimming and blurring.

doi:10.1364/AO.56.000G36

American Academy of Ophthalmology.Retina.

National Eye Institute.Refractive errors.

American Academy of Ophthalmology.What are polarized lenses for?

American Academy of Ophthalmology.The sun, UV light and your eyes.

2019;9(8):e028350.

doi:10.1136/bmjopen-2018-028350

Federal Aviation Administration.Sunglasses for pilots: beyond the image.