Blue Light Blocking Glasses vs Polarized Sunglasses

✓ Medically Reviewed by Jack Cincotta

Polarised Sunglasses


In this article we are going to explain the differences between blue light glasses and polarised sunglasses, so that you don't make a mistake wearing them at the wrong times of day or wrong situations.

Using eyewear in the right situation is what you want to do; you don't want to wear the wrong type of lenses thinking they are doing the job you want them to do.

What Are Polarised Lenses?

Polarized lenses are lenses that have a laminate on them that only allow vertical light waves to be seen. Polarized lenses block horizontal light waves to help reduce the amount of glare from sunlight seen through the lenses.

Therefore, polarized sunglasses are designed to reduce glare from the sun that comes off different surfaces like water, snow & objects during the daytime.

Do Polarized Sunglasses Block Blue Light?

Yes, polarized sunglasses do block some blue light wavelengths, but should not be used for the purpose of blocking blue light 

This is because polarized sunglasses do not block 100% of blue and green light wavelengths between 400 - 550nm.

What Are the Differences Between Blue Light Glasses and Polarized Sunglasses? 

  • Polarised sunglasses are designed to be worn outside in the sun; blue light glasses are not
  • Polarised sunglasses typically come with UV protection; blue light glasses normally do not
  • Polarised sunglasses are good at helping to reduce glare; blue light glasses are not
  • Blue light glasses are designed to be worn indoors and the evenings; polarised sunglasses are not
  • Blue light glasses can come in clear lenses; polarized lenses do not
  • Blue light glasses often come with an anti-glare coating which is different to polarised sunglasses in so much that it does not filter any UV light
  • Blue light glasses do not normally use polarized lenses

Can I Wear Polarized Sunglasses to Block Blue Light Night?

No, we do not suggest wearing polarized sunglasses at night to act as blue light blocking glasses. 

We suggest using these Blue Light Blocking Glasses instead for that purpose in the evening. This is because they are designed to only filter out the blue and green light wavelengths and leave other wavelengths visible.

Can I Wear Polarized Sunglasses to Block Blue Light from a Computer?

No, we do not suggest wearing polarized sunglasses when working on a computer indoors to help reduce the amount of blue light your eyes are exposed too.

We suggest using these glasses for when inside, that have a clear lens instead when looking at a digital screen indoors for an extended period of time. Or these glasses that have a yellow lens if you want to filter more blue light.

If you are working on a laptop sitting outside near a pool, sea or where there is lots of glare reflecting off surfaces, then by wearing sunglasses you might be able to help reduce the glare on your ability to clearly or easily see the laptop screen.

When To Wear Polarized Sunglasses?

Polarised sunglasses are to be worn outside, not inside and are used to beat glare from the sun off unnatural surfaces.

Glare can hurt your eyes and cause eye pain in some people.

What Are Blue Light Glasses?

Two models wearing BON CHARGE blue light glasses

Blue light glasses aka. blue light blocking or filtering glasses are glasses that filter and/or block blue light from artificial sources.

Blue light glasses are to be worn inside.

Blue light glasses focus on blocking very specific wavelengths of blue and green light and different times of the day when indoors.

Polarised sunglasses focus on blocking invisible frequencies of light such as UV light.

When to Wear Blue Light Glasses?

Blue light glasses that have a red lens like BON CHARGE Blue Light Glasses are used 2-3 hours before bed.

Yellow lens blue light glasses, such as our BON CHARGE Yellow Lens Blue Light Glasses, are used to block more blue light from artificial sources during the day than clear lenses.

Computer glasses with a clear lens, such as our BON CHARGE Computer Glasses, are used to filter blue light during the day when inside.

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