Polarized vs Non-Polarized Sunglasses Which Are Better

When choosing between polarized vs non-polarized sunglasses, you might not know which one to pick or what “polarized” means.

Sunglasses are powerful accessories. They protect your eyes from harmful UV rays, make you look cool, and can even correct your vision like regular prescription glasses.

What about Glare


Glare happens when light hits a flat surface, like a metal sheet or a calm lake, and reflects in one concentrated direction, creating a super bright effect. These light waves are also polarized, meaning they align mostly in one direction—horizontally in this case. Your sunglasses allow only vertical polarized light to pass through. The chemical filter in the lenses absorbs all other light.

What Does “Polarized” Mean?

When we talk about sunglasses, “polarized” refers to a special coating on the lenses that blocks glare. With polarized sunglasses, you may notice colors and details appear clearer than with regular sunglasses.

What Do Polarized Lenses Do?

The main job of polarized lenses in sunglasses is to reduce glare. They also make colors look more vibrant, increase contrast, and can even reduce eye strain. If you spend a lot of time outdoors, they are especially useful because they help you avoid glare while enjoying the best views.

How Do Polarized Sunglasses Work?

Polarized sunglasses have a chemical filter on the lenses that cuts down on glare. This filter works like a fence with vertical slats: it blocks anything that is long and horizontal. When horizontal glare tries to get through, it can’t reach your eyes.

Benefits of Polarized Sunglasses

Using polarized sunglasses to eliminate glare is convenient and safe. Glare can cause eye discomfort and pain, leading to headaches, migraines, and even car accidents.

Who Invented Polarized Sunglasses?

raptor eyes

Some say that scientists at NASA’s Jet Propulsion Laboratory invented polarized lenses in the 1980s, inspired by the filter oils in raptor eyes.


However, this story is only half true. While these scientists did invent a type of polarized lens, they were not the first. That credit goes to physicist Edwin H. Land, known for inventing the Polaroid camera. Before focusing on cameras and film, Land made and sold polarized sunglasses using his groundbreaking Polaroid material back in 1936.

Differences Between Polarized and Non-Polarized Sunglasses

With polarized sunglasses, you won’t experience the discomfort and dangers of glare. Your vision may be clearer, with better contrast compared to non-polarized lenses. Non-polarized sunglasses lack the anti-glare coating but still protect your eyes from harmful UV rays just as well. However, they do not reduce glare as effectively. Lastly, polarized sunglasses usually cost a bit more than non-polarized ones.

How to Tell if Sunglasses Are Polarized

If you’re not sure whether your sunglasses are polarized, you can try a few simple methods:

  1. Hold them up to another polarized surface: When polarized lenses overlap at opposite angles, they create a nearly black surface. Find another polarized material, such as another pair of sunglasses or an anti-glare computer screen. Look through your sunglasses and tilt them 60 to 90 degrees. If the lenses turn dark, they are polarized.
  2. Test on a reflective surface: Find a highly reflective surface like a metal table or countertop. Look through your sunglasses and tilt them about 60 degrees. If the glare reduces further, the sunglasses are polarized.
  3. Look at an LCD screen: Polarized lenses make LCD screens look very dark. If it’s hard to see the screen through your sunglasses, they are likely polarized.

Polarized vs non-polarized sunglasses which are better?


When choosing between polarized and non-polarized sunglasses, it depends on how you will use them. Polarized lenses are better if you spend a lot of time outdoor because they offer more benefits. However, personal preference is important too.

No matter which type you choose, make sure your sunglasses have UV protection. UV rays can harm your eyes in the short and long term.

Dr. Erwin says, “You can get keratitis, which is like a sunburn on your eye.” Long-term UV exposure can also increase the risk of cataracts, macular degeneration, or cancers around the eye.

When shopping for sunglasses, look for a pair that is stylish, comfortable, and offers the best sun protection for your needs.

Best brand of polarized sunglasses

As we know there are a lots famous brand you can find on google such as ray ban polarized. You also can get more famous brand polarized eyewear at here.  You also can find more polarized sunglasses at uiiglasses because of we are one sunglasses manufacturer from China

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