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A young man laying on the ground, looking at his phone, wearing black rectangle Zenni glasses with clear Blokz lenses that have a slight blue reflective sheen.
Zenni Blokz logo

Blue Light Lenses

Customize your blue light glasses with Blokz for tailored defense.
Frames
SKU # 234321

Introducing

Blokz More™

Get up to 2x more blue light defense than our original Blokz Core lenses, for superior comfort on device-heavy days. Blokz More lenses are certified by COLTS Labs, and feature a dual-defense lens tech that filters and reflects blue light and includes 100% UV protection. Virtually clear with a slight blue sheen, Blokz More is available with or without a prescription, starting at $31.90.

Translucent brown round Zenni glasses on a table with a phone and earbuds. Clear lenses have a slight blue reflective sheen.
Frames
SKU # 4467222

Thrive with Blokz

Advanced blue-light-filtering lens tech built for every scroll, stream, and sunbeam.
A lens icon with squiggly lines next to it. Only one line crosses through the lens.

Filter Out Blue Light

Reduce exposure from digital devices, sun and artificial lights.
An illustrated sun icon.

100% UV Protection

Shield your eyes from the sun’s harmful rays.
A lens icon with jagged lines across it.

Scratch Resistant

Anti-glare lenses made to last through daily use or a minor oops.
A blue seal of approval with a check mark in the middle.

Third-Party Tested

Blokz More lenses are COLTS Labs validated.

FIND THE BLOKZ FOR YOU

Customize your blue light glasses with the Blokz lenses that fit your life.
features
Clear round Zenni glasses with clear blue light lenses.
Blokz More lenses
Clear round Zenni glasses with blue light lenses featuring a subtle yellow tint.
Clear round Zenni glasses with blue light sunglasses lenses in a dark gray tint.
Blokz Photochromic lenses
Blokz Core™
Blokz More™(New)
Blokz Plus Anti-Fatigue
Blokz Sunglasses
Blokz Photochromic
Best for
Everyday Use
Everyday use on device-heavy days
Everyday visual power bump for near-vision tasks
Outdoor adventures and driving
Single pair for indoor & outdoor use
Lens Aesthetic
Virtually clear
Virtually clear
Slight yellow tint
Always tinted outdoor sunglasses lens
Virtually clear indoor to dark tinted outdoors
Blue Light Filtering
Up to
2x more filtering vs Blokz Core
Up to
Depending on lens color
100% UVA/UVB Protection
Supported Prescriptions
Single-Vision, Progressives, Bifocals, Non-Rx
Single-Vision, Progressives, Bifocals, Non-RX
Single-Vision
Single-Vision, Progressives, Bifocals, Non-Rx
Single-Vision, Progressives, Non-Rx
Blokz Boost™ Coating Upgrade
Add for $14.95
Included
Included
--
Add for $14.95
Starting Price
$16.95
$31.90
$56.95
$24.90
$29.95
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Recommended Styles

Browse best-selling frames that make great blue light glasses.
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Blokz Boost™ Coating

Add to lenses for $14.95

Blokz Boost is a blue light coating that adds enhanced everyday defense to your lenses by reflecting additional blue light. Easily level up your eye care and comfort—whether you’re working, scrolling, or out and about. Includes glare reduction and scratch-resistance.

Blokz Boost will show up as an option at the coatings step of lens customization if the lenses you’ve already selected are compatible.

Translucent brown round Zenni glasses floating on a light blue background. Clear lenses have a slight blue reflective sheen. Additional text: Reflect more blue light. Repel dirt, water, and smudges.
Frames
SKU # 7817039

Blue Light Explained

What’s blue light anyway and why should we care? It’s a part of the visible light spectrum (unlike UV which is invisible) and comes from both artificial sources like digital devices and LED lights, and from one big natural source: the sun. Our eyes don’t filter blue light as well as other kinds of light, which means more of it gets in.

Blokz lenses are crafted with an advanced polymer that filters blue light. Blokz More lenses and Blokz Boost coating offer more defense by reflecting additional blue light.

Choosing Your Blokz

Watch a 1-min. video intro to our Blokz lens suite.

“I have to admit that I was extremely skeptical. I spend many hours a day in front of monitors and under fluorescent light. I purchased one pair of non-prescription Blokz. I immediately noticed my eyes feeling less tired and strained. I was so impressed, I ordered a second pair.”

- Verified User

Blokz FAQ

Blokz lenses are made of a specialized lens material that absorbs blue light, reducing the amount of blue light that hits the back of your eye. Like our standard clear lenses, Blokz come with 100% UV protection and an anti-scratch coating.

For select lenses, you can add Blokz Boost™, a new specialized coating that reflects away additional blue light for added defense.

Blue light lenses use a specific layer baked into the lens to filter out a portion of the blue light spectrum, which ranges from 380 nm to 500 nm. The range and amount of light your lens filters out depends on which type of Blokz lens you choose. Our Blokz standard lenses provide 40% filtration of blue light, Blokz Plus Anti-Fatigue offers 60% filtration of blue light, and Blokz More has a special reflective coating targeting the 440nm–450nm range.

The lens technology in Blokz reduces the intensity of blue light that reaches your eyes without affecting visual clarity or color perception, allowing you to go about your day-to-day activities with peace of mind.

Blokz More uses a dual-defense blue light lens technology: a specialized lens material to absorb blue light and an additional coating on the outside of the lens to reflect blue light. The outside reflective layer provides enhanced defense by reflecting up to 2x the amount of blue light where some digital device energy peaks (around 450 nm) compared to the original Blokz lens by itself.

Our newest Blokz More lens was third-party tested by COLTS Laboratories. The rigorous testing and verification of the lens means you can feel confident in the blue light filtering capabilities that your lens is providing. COLTS testing confirms our Blokz More lens offers 100% UV Protection and up to 2x more filtration at 450 nm (where some digital devices’ blue light energy peaks) compared to our original Blokz lens.

Blokz Boost is a coating that can be added to select lenses for enhanced blue light defense from digital devices and the sun. Best for those who spend extended time on digital devices or outdoors.

During the lens selection process, you can add the Blokz Boost coating to the following lenses:
- Blokz, Blokz Photochromic, Standard Photochromic, Transitions® GEN S™, Transitions® XTRActive®
- Reminder: Blokz Boost is included with Blokz More and Blokz Anti-Fatigue lenses.

Blokz Core and Blokz More blue light lenses are not tinted. However, you may notice a slight blue reflection when viewing yourself in video calls or in photographs. This blue sheen is generally not noticeable to the person wearing the blue light lenses.

Some of our other Blokz lenses do have a tint. Blokz Plus Anti-Fatigue has a subtle yellow tint for visual comfort. Blokz Sunglasses can be customized with the tint of your choice. Blokz Photochromic are virtually clear indoors and transition to dark gray outdoors.

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