EYEGIS
§ Core Technology

Two lenses. Two hours of the day.

E-Guard Retina™ for the screen-lit day. E-Guard Circadian™ for the fall of night. Two dedicated optical systems, one honest standard.

Certified · Daytime

E-Guard™ Retina

Protection du bleu-violet haute énergie·Protect visual comfort during long screen sessions

E-Guard Retina selectively filters part of the blue-violet wavelengths responsible for digital eye strain during prolonged screen sessions, while preserving color perception.

  • Defeats Screen Fatigue: Minimizes dry, itchy, and red eyes

  • Precision Filtering: Targets only the harsh blue-violet light

  • Built for High-Output: Ideal for long workdays, binge watching, and intense gaming

Certified · Nighttime

E-Guard™ Circadian

Soutien du rythme circadien et du confort visuel·Sunset Mode & Sleep Protection

Exposure to high-energy blue light after dark tricks your brain into thinking it's still noon, disrupting your natural sleep cycle. E-Guard Circadian™ mitigates these specific evening wavelengths while maintaining a natural viewing experience.

  • Protects Melatonin: Limits evening light disruption to support deeper, uninterrupted sleep

  • True-to-Life Colors: Maximum circadian protection with significantly less color distortion than traditional amber lenses

  • Smarter Night Routines: Built for late-night gaming, work, streaming, and scrolling

§ Why Both Matter

Why both matter.

Most blue-light eyewear treat all blue light as if it were the same. At Eyegis we see it as two very different challenges.

The Daytime Challenge

Eye strain & fatigue.

Solved byE-Guard Retina™
The Nighttime Challenge

Sleep disruption & biological clock.

Solved byE-Guard Circadian™

Different wavelengths. Different effects.
Two dedicated solutions.

Explore Honest Science with Eyegis
§ 04 · Core Technology

The lens,
instrumented.

EyegisGuard™ is a measurable optical system. Every layer, every nanometer, every gram — logged, tested, disclosed.

Filter band
400–455nm
Peak attenuation
45%
Visible transmission
94%TLv
Color shift ΔE
< 1.8CIE
Refractive index
1.56nD
Frame mass
17.4g
Wavelength filter · liveλ · nm
400450500550600650700HEV cut · 400–455nmPhotopic pass

Selective attenuation across the harmful HEV band while preserving photopic response.

System log
/eyegisguard/optics
Lens stack · cross sectionEGS-3.2 · CR-39
● REC · OPTICAL SCAN
Ø 52.00mm · biconvex
LAT 41.157 · LON −8.629
λ 400—700 nm
EGS-3.2 · CR-39
  • L01
    Hydrophobic top coat
    Repels fingerprints, water, cosmetic oils.
  • L02
    Anti-reflective (AR)
    Sub-1% residual reflection, both surfaces.
  • L03
    EyegisGuard™ HEV filter
    Absorptive dye tuned to 400–455 nm.
  • L04
    CR-39 optical substrate
    1.56 index, ISO 8980-1 tolerances.
  • L05
    Scratch-resistant primer
    Bayer abrasion ratio ≥ 3.2.
Optical Science · Porto · Est. MMXXIVSYSTEM · NOMINAL
§ Honest Science™

The science behind the lenses. Without the marketing myths.

The blue-light market is filled with confusion, exaggerated claims, and misleading numbers. Our goal is simple: explain what we know, what we don't know, and how our lenses are engineered.

§ 01Spectrum

Blue light is not one single thing.

"Blue light" is often marketed as one specific threat. In reality, it spans a broad spectrum of visible wavelengths between 380 and 500 nanometers. Think of it like UV light: it's a category, not a single wavelength.

Retina · 435–440
Circadian · ~480
380 nm400420440460480500 nm
§ 02Two mechanisms

Retina vs Circadian.

Retina

Photobiological hazard

Research on photobiological hazards identifies a peak sensitivity in the blue-violet region, around 435–440 nm.

Ref. ICNIRP 2013 · ANSI 2015

Circadian

Biological clock

The body's internal clock is most sensitive to slightly longer blue wavelengths, centered around roughly 480 nm.

Ref. CIE S 026/E:2018

Because the biological mechanisms and wavelengths are different, Eyegis targets them as two separate problems.

§ 03Selective filtering

Why selective filtering matters.

Many brands advertise a single, catch-all number: "Blocks 40%", "Blocks 60%", or "Blocks 90%". These metrics are highly misleading because they depend entirely on which wavelengths are included in the math.

A lens could block large amounts of relatively less relevant wavelengths while allowing much of the critical range to pass through. Actually, the cornea already filters close to 100% of blue-light on the lowest wavelengths (~380 nm to 400 nm).

Eyegis measures performance where it actually matters, not where it inflates a marketing claim.

§ 04Color fidelity

Why heavy orange lenses distort colors.

When a lens aggressively strips away all blue light, color accuracy vanishes.

Heavy amber
Eyegis · true tone
  • Reddish or amber screens
  • Reduced color accuracy
  • Altered white balance
  • Distorted visual experience

For some applications, that trade-off may be acceptable. For many users, it is not.

§ 05The middle ground

Protection without compromise.

Targeted filtering
Superior color fidelity
More comfortable everyday use
No extreme orange tint
§ 06E-Guard Scores

Understanding E-Guard Scores.

The E-Guard Retina and E-Guard Circadian scores are proprietary Eyegis indicators. They are inspired by published scientific literature, including work from the CIE and research on circadian light exposure.

They are not medical certifications and should not be interpreted as medical claims.

R
E-Guard Retina
Blue-violet filtering
C
E-Guard Circadian
Circadian-related blue-light filtering
§ References
  • 01International Commission on Illumination (CIE) — Blue Light Hazard
  • 02Harvard Medical School — Blue Light Has a Dark Side
  • 03National Sleep Foundation — Light and Sleep
  • 04CIE — Melanopic Metrics
§ Science in Practice

From scientific principles to laboratory verification.

At Eyegis, we don't rely on marketing claims or estimated filtering percentages. Every lens design is verified through independent laboratory testing to measure how it performs across the entire visible spectrum.

Lab · λ 280–780 nm · Independent Verification
§ Testing Checklist

Five independent measurements.

Test · 01

Full Spectral Transmission (280–780 nm)

Measures exactly how much light passes through the lens at every wavelength, allowing us to evaluate both retinal and circadian filtering performance.

Test · 02

UV Protection

Verifies that harmful UVA and UVB radiation is effectively blocked while maintaining high visible-light transmission.

Test · 03

Visible Light Transmission (Tv)

Determines how much visible light reaches your eyes, ensuring the lens provides the intended balance between comfort and brightness.

Test · 04

Color Fidelity

Evaluates chromatic performance using internationally recognized colorimetric standards to preserve a natural viewing experience. Including Tsig Traffic Signal Recognition that confirms accurate recognition of red, yellow, and green traffic signals.

Test · 05

International Standards Compliance

Our lenses are tested against: ANSI Z80.3 (United States), EN ISO 12312-1 (Europe), AS/NZS 1067.1 (Australia & New Zealand).

"Because numbers only matter when they mean something."

A complete transmission spectrum reveals which wavelengths are filtered, how much visible light remains, how colors are preserved, and whether the lens complies with international safety standards.

We don't engineer lenses to maximize marketing numbers. We engineer them to maximize the balance between science, comfort and everyday usability.

§ 04EyegisGuard™ Technology

Engineered to protect.
Designed to preserve.

EyegisGuard™ is our proprietary lens technology, developed to selectively filter specific wavelengths of blue light while preserving natural color accuracy, visual clarity and everyday comfort.No hype. No fear. Just quiet optical engineering.

01The Lens

A single lens, five deliberate layers.

Every EyegisGuard™ lens is built as a stack of considered choices — each one measurable, none of them cosmetic.

EyegisGuard™ optical lens — floating study
01Premium Optical Lens

High-clarity optical resin, precision-polished for distortion-free vision.

02Selective Blue-Light Filter

Attenuates a targeted portion of the 400–455 nm band without shifting color.

03Anti-Reflective Coating

Multi-layer AR treatment reduces glare from screens and ambient light.

04Scratch-Resistant Surface

Hard-coat finish protects the lens across years of daily wear.

05TR90 Lightweight Comfort

Aerospace-grade thermoplastic frame — flexible, hypoallergenic, weightless.

02How It Works

We filter a slice of the spectrum — not the whole sky.

A narrow, targeted band of high-energy blue light — attenuated with intent, so daylight, screens and skin tones still look like themselves.

Filtered by EyegisGuard™400 – 455 nm
UV300 nm
Blue450 nm
Visible550 nm
Red700 nm
IR1000 nm

"Blocking as much blue light as possible is not the goal. Blocking the right amount, in the right place, is."

03Preserve What Matters

Comfort you can see — without color you can't.

Drag the handle. The difference is quiet, honest and never dramatic — exactly as an optical filter should behave.

With EyegisGuard™
Without EyegisGuard™
Without EyegisGuard™With EyegisGuard™
Natural Colors
Contrast Preservation
Reduced Harsh Reflections
Visual Comfort
04For Every Digital Life

One lens. Every kind of day.

Creative Professionals — Eyegis
For

Creative Professionals

Preserved color accuracy across long editing sessions — reds stay red, blacks stay black.

Business Professionals — Eyegis
For

Business Professionals

Comfort across back-to-back calls, spreadsheets and travel days.

Students — Eyegis
For

Students

Steady visual focus for reading, research and late-night writing.

Gamers — Eyegis
For

Gamers

Reduced glare and stable contrast during extended play — without color shift.

05Technical Specifications

Every detail, quietly stated.

EyegisGuard™ lens macro detail
01

Selective Blue-Light Filtering

Targeted attenuation across 400–455 nm.

02

Anti-Reflective Coating

Multi-layer AR for glare-free clarity.

03

TR90 Lightweight Frame

Aerospace polymer — flexible, hypoallergenic.

04

Premium Optical Clarity

Distortion-free vision, edge to edge.

05

Natural Color Preservation

True whites. True skin tones. No yellow cast.

06

Comfort for Long Sessions

Balanced weight distribution and nose bridge.

07

2-Year Warranty

Frame integrity guaranteed against defects.

08

60-Day Comfort Guarantee

Wear them. If they do not feel right, return them.

06Why the Difference Is Felt
Comfort is not measured by how much blue light you block. It is measured by what your eyes stop noticing — glare, fatigue, the screen itself.
Eyegis Optical Studio · Design Charter
Honest Science™

Three principles.Nothing invented.

01

Selective filtering, not a tint

E-Guard Retina™ and E-Guard Circadian™ act only on the wavelengths where high-energy blue light lives — and leave the rest of the visible spectrum to your eyes, so colours stay honest.

02

Frames built to be forgotten

Featherweight TR90 architecture, balanced hinges, quiet silhouettes — an object designed to sit on your face all day and belong in your wardrobe at night.

03

Backed by optics, not slogans

Every lens is engineered against peer-reviewed optical principles — ICNIRP, CIE S 026, ANSI Z80.3 — and verified in an independent laboratory. No inflated percentages. No overpromises.

Launching soon on Amazon

One catalogue.Your marketplace.

Eyegis is arriving on Amazon in every core marketplace — secure checkout, Prime delivery and hassle-free returns wherever you already shop. Leave your e-mail on the launch list to be the first served.

AmazonJoin the launch list · Amazon
ANSI Z80.3 · EN ISO 12312-1 · AS/NZS 1067.1
United States
Join the launch list
United Kingdom
Join the launch list
Deutschland
Join the launch list
France
Join the launch list
Italia
Join the launch list
España
Join the launch list
Canada
Join the launch list
Brasil
amazon.com.br
  • Prime delivery on launch
  • 60-day comfort guarantee
  • 2-year warranty
  • Verified marketplace
Engineered to Protect
Selective blue-light filtering
True Colors
No yellow tint
Designed to Wear
Timeless style, every day
Lab-Verified
ANSI · EN ISO · AS/NZS
ANSI · EN ISO · AS/NZS
Certified · ANSI · EN ISO · AS/NZS
AmazonVisit Store