How Our Glasses Work

A Simple Solution to a Modern Problem

You already know the problem: artificial blue light after sunset disrupts your sleep.

Your screens, your LED lights, even your TV—they're all sending a powerful signal to your brain that says, "It's still daytime. Don't produce melatonin. Stay awake."

But here's what you might not know: you don't have to sit in darkness to fix this.

You don't need to throw away your devices, avoid screens entirely, or spend your evenings by candlelight.

You just need to filter the specific wavelengths of light that are causing the problem.

That's exactly what our glasses do—and they do it in a way that's backed by clinical research, designed with precision, and simple enough to fit seamlessly into your life.

Let's walk through exactly how they work.

The Target: Blue Light at 460-480nm

Not all light affects your sleep equally.

When scientists study how light influences the circadian system, they've discovered something critical: there's a specific range of wavelengths that has the most powerful effect.

That range is 460-480 nanometers—right in the middle of the blue light spectrum.

This is the exact wavelength that:

Activates the ipRGCs (specialized light-detecting cells) in your eyes
Sends the strongest "stay awake" signal to your brain
Suppresses melatonin production most effectively
Delays your circadian rhythm when you're exposed to it after sunset

Think of it like a radio frequency. If you want to block a specific station, you need to filter out that exact frequency—not just turn down the volume on all stations.

Our lenses are engineered to block this precise wavelength range while allowing other light through.

This means you can still see clearly, interact with your environment, and go about your evening—but the light reaching your eyes is no longer disrupting your biology.

The Lens Technology: Precision Filtering

When you look at our glasses, the first thing you'll notice is the amber or orange tint.

This isn't just for aesthetics. The tint is the filter.

Here's how it works:

Step 1: Light Enters the Lens

When light from your environment (your screen, your lamp, your overhead lights) hits the lens, it contains the full spectrum of visible wavelengths—red, orange, yellow, green, blue, and violet.

Step 2: Short Wavelengths Are Absorbed

The specialized coating and tint of our lenses selectively absorb short-wavelength blue light in the 400-500nm range.

Think of the lens like a security checkpoint: longer wavelengths (yellow, orange, red) pass through easily. Short wavelengths (blue and violet) are stopped.

The most critical wavelengths—those 460-480nm wavelengths that suppress melatonin—are filtered out by over 90% (depending on the specific lens model).

Step 3: Filtered Light Reaches Your Eyes

What makes it through the lens is a warmer, softer spectrum of light—dominated by yellow, orange, and red wavelengths.

To you, the world looks slightly warmer, as if everything has a sunset glow.

But to your ipRGCs—the specialized cells in your eyes that control your circadian rhythm—it's as if the lights have been dimmed or turned off entirely.

They stop detecting the "daytime" signal.

Step 4: Your Brain Receives the "Evening" Signal

Without blue light activation, your ipRGCs stop sending the "suppress melatonin" message to your brain's master clock (the suprachiasmatic nucleus).

Your pineal gland—a small structure deep in your brain—interprets this as: "Okay, it's evening now. Time to start producing melatonin."

And that's when the cascade begins.

What Happens When You Put Them On

The effects are both immediate and cumulative.

Immediate Effect: Visual and Mental Calm

The moment you put on our glasses, you'll notice something subtle but powerful: the harsh, stimulating quality of artificial light softens.

Bright white screens and LED lights take on a warm, amber glow. The visual "harshness" that you didn't even realize was stressing your eyes disappears.

Many users describe it as an immediate sense of relaxation—like their eyes finally stopped working so hard.

This isn't placebo. It's your visual system responding to a reduction in the high-energy, short-wavelength light that causes visual fatigue and strain.

Within 30-60 Minutes: Melatonin Production Begins

Under normal conditions—without artificial light—your body would begin producing melatonin about 2-3 hours before your natural bedtime.

But evening blue light delays this process, sometimes by hours.

When you filter out blue light with our glasses, you remove that inhibitory signal. Your pineal gland can begin producing melatonin on its natural schedule.

You won't necessarily feel drowsy immediately (melatonin takes time to build up), but the biological process has begun.

After 1-2 Hours: Natural Drowsiness Emerges

As melatonin levels continue to rise, you'll start to feel the effects:

Your core body temperature begins to drop slightly
Your mental activity slows down naturally
You feel a gentle, authentic sleepiness—not the "tired but wired" feeling, but genuine readiness for sleep

This is your body's natural wind-down process, finally unblocked.

By Bedtime: Your Body Is Ready for Sleep

When you finally turn off the lights and get into bed, your body isn't caught off guard.

Your melatonin has been rising for 2-3 hours. Your circadian system has shifted into "nighttime mode." Your sleep drive is at its peak.

You fall asleep quickly—not because you're forcing yourself, but because your biology is aligned with your intention.

Why the Orange/Amber Tint Matters

You might be wondering: why can't the lenses just be clear?

The answer comes down to physics and biology.

Clear Lenses Don't Block Enough

Many brands market "blue light glasses" with clear or nearly-clear lenses. They claim to block "harmful blue light" while looking stylish and professional.

But here's the problem: a clear lens, by definition, cannot block a significant amount of any wavelength.

If the lens appears clear to your eyes, that means it's letting most of the visible spectrum through—including the blue wavelengths that suppress melatonin.

Scientific testing has confirmed this. A 2025 study that measured 26 different brands of "blue light blocking" glasses found that clear lenses typically filter less than 20% of the biologically-active blue light.

That's not enough to create a meaningful effect on your circadian system.

Amber Lenses Hit the Target

To effectively block the 460-480nm range, the lens must have a visible tint.

Amber and orange-tinted lenses are the sweet spot. They:

Block 90%+ of the critical 460-480nm wavelengths
Still allow enough light through for you to see clearly
Maintain reasonable color perception (things don't look wildly distorted)
Provide the filtering strength needed for measurable circadian benefits

Yes, the world looks warmer when you wear them. But that's exactly the point—you're filtering out the cool, blue wavelengths that are keeping you awake.

The Research Standard

Every clinical study that has shown positive effects on sleep and circadian rhythm has used amber or orange-tinted lenses.

The 2025 research review that found 100% of studies showed benefits? All of them used lenses with this level of filtering strength.

The 2021 clinical trial that advanced melatonin onset by 28 minutes? Amber lenses.

Clear lenses might look better on Zoom calls, but they don't protect your sleep.

The Science of mDFD: How We Measure Effectiveness

In 2025, researchers introduced a new scientific standard for measuring the effectiveness of blue light blocking glasses: melanopic daylight filtering density (mDFD).

This metric quantifies how effectively a lens reduces the biological potency of light for your circadian system.

What the Numbers Mean

mDFD < 1.0 = Insufficient filtering for meaningful circadian protection
mDFD ≥ 1.0 = Strong enough to create measurable improvements in sleep
mDFD 1.0-2.0 = The optimal range—effective filtering while maintaining vision

Our lenses are engineered to fall within the 1.0-2.0 mDFD range, which research has identified as the gold standard for balancing circadian protection with visual function.

This isn't marketing language. It's an objectively measurable property that can be verified in a lab.

What Makes Our Glasses Different

Not all amber-tinted glasses are created equal.

Here's what sets our glasses apart:

1. Precision-Engineered Lens Technology

Our lenses aren't just "tinted orange." They're specifically formulated to target the 460-480nm range with maximum efficiency.

The coating and material composition are designed to:

Block 90%+ of melatonin-suppressing wavelengths
Maintain clarity and sharpness
Minimize color distortion
Reduce glare and visual fatigue

2. Verified mDFD Rating

We don't just claim our glasses work—we can prove it.

Each lens design is tested using spectrophotometry to measure its actual filtering properties across the full spectrum. We can show you exactly how much light is blocked at each wavelength.

This is the difference between science-backed eyewear and a marketing gimmick.

3. Designed for Real Life

We know you're not going to wear glasses that look ridiculous or feel uncomfortable.

Our frames are designed to:

Look modern and stylish (not like safety goggles)
Fit comfortably for extended wear
Work for a variety of face shapes and sizes
Be durable enough for daily use

Effectiveness means nothing if you won't actually wear them.

4. The Right Tool for Evening Use

Unlike "all-day" computer glasses that claim to reduce eye strain, our glasses have a specific purpose: protecting your circadian rhythm in the 2-3 hours before bed.

We're not trying to be everything. We're trying to do one thing exceptionally well.

How to Use Them for Maximum Benefit

Getting results from our glasses isn't complicated, but timing matters.

When to Wear Them

Start wearing them 2-3 hours before your desired bedtime.

For most people, this means putting them on around 7-9 PM.

Why this timing?

It gives your body enough time to build up melatonin before bed
It aligns with the natural evening phase of your circadian rhythm
It covers the time when most people are exposed to the most artificial light

What You Can Do While Wearing Them

The beauty of our glasses is that you don't have to change your routine.

You can:

Watch TV or movies
Work on your laptop (if needed)
Use your phone
Read under a lamp
Have conversations
Move around your home normally

The glasses filter the light for you, so you can keep living your life.

When NOT to Wear Them

Do not wear our glasses during the day.

Morning and afternoon blue light exposure is essential for:

Keeping you alert and focused
Maintaining your circadian rhythm
Supporting mood and cognitive function

Only wear them in the evening—when blue light becomes disruptive rather than beneficial.

Also avoid wearing them:

While driving (they may affect color perception of traffic signals)
During activities requiring precise color discrimination
In situations where you need maximum alertness

Consistency Is Key

For best results, wear them every evening—not just occasionally.

Your circadian rhythm responds to patterns. Consistent nightly use helps your body establish a predictable rhythm, making it easier to fall asleep at your desired time every night.

What to Expect: Your Week-by-Week Guide

Here's what typically happens when you start using our glasses:

Week 1: Immediate Comfort, Easier Sleep Onset

Most people notice:

A feeling of visual and mental relaxation when wearing the glasses
Falling asleep 15-30 minutes faster than usual
Less time lying awake feeling "wired"

You're allowing your melatonin to rise on schedule.

Week 2: Circadian Phase Shift

By the second week:

You naturally start feeling sleepy earlier in the evening
Your desired bedtime and biological bedtime begin to align
Morning wakefulness improves (you're sleeping at the right time)

Your internal clock is resetting.

Weeks 3-4: Stable, Restorative Sleep

With continued use:

Sleep becomes consistently deeper and more restorative
You wake up feeling genuinely refreshed
Daytime energy and mental clarity improve
Your overall sleep schedule stabilizes

You've restored circadian alignment.

The Bigger Picture: Part of a Healthy Light Environment

Our glasses are powerful, but they work best as part of a broader approach to light hygiene.

Combine With Daytime Light Exposure

Remember: your circadian system needs contrast.

Get bright light (ideally sunlight) in the morning and during the day. This "anchors" your rhythm and makes the evening filtering even more effective.

Optimize Your Sleep Environment

In addition to wearing our glasses:

Use warm-toned lamps instead of overhead lights in the evening
Enable "night mode" on your devices
Keep your bedroom as dark as possible during sleep

Each layer of protection reinforces the others.

Build a Consistent Routine

Your circadian rhythm thrives on predictability.

Try to:

Wake up at the same time each day
Put on your glasses at the same time each evening
Go to bed at a consistent time

Consistency amplifies the benefits.

The Bottom Line: Simple, Science-Backed, Effective

Our glasses work because they're based on a fundamental principle: your circadian system responds to light.

When you filter out the specific wavelengths that suppress melatonin—the 460-480nm blue light that artificial sources emit in abundance—your body can do what it's been trying to do all along:

Produce melatonin on schedule
Prepare for sleep naturally
Align your biology with your intentions

It's not magic. It's not placebo.

It's optical physics meeting circadian biology.

The amber tint isn't a cosmetic choice—it's the filtering mechanism. The mDFD rating isn't marketing jargon—it's a measurable scientific standard. The clinical research isn't theoretical—it's real data from real people.

We've taken millions of years of human evolution, decades of circadian science, and the latest optical engineering, and distilled it into something remarkably simple:

A pair of glasses you wear for a few hours each evening.

That's it.

No complicated protocols. No lifestyle overhaul. No forcing yourself to avoid screens.

Just a targeted intervention that removes the one obstacle standing between you and the sleep you deserve.

Your Biology Is Ready

Your body knows how to sleep.

It's been doing it successfully for your entire life—at least, whenever you've given it the right conditions.

Our glasses don't "make" you sleep. They don't "force" your body into a rhythm.

They simply remove the artificial interference that's been blocking your natural process.

They give your eyes what they expect after sunset: the absence of blue light.

Everything else? Your biology handles automatically.

The melatonin production. The temperature regulation. The sleep drive. The restoration.

It all happens on its own—once you remove the obstacle.

Our glasses are just the tool that makes it possible.

The rest is up to your body.

And your body is ready.