Green Glasses Testing Guide - DistilledScience

🔬 The Science

Green light might help lower the frequency and severity of migraines, according to research from the last few years. It works both because the green cones in our eyes send the lowest amplitude signal to our brain (important when said brain is oversensitized), and because the green light itself seems to trigger the production of our body's natural opioids, which can help reduce pain.

            The Catch: To get the greatest benefit, research suggests sitting in a room lit only with
            dim green light for 1-2 hours per day. Most of us don't have time for that—which led to the question:
            "What if we just wear green-tinted glasses?"
        

🧪 How I Tested

I ordered the top six green glasses from Amazon plus two sets of tinted contact lenses. Using a full spectrum white LED and a high-end spectrometer (In.Licht Ultra), I measured the wavelengths of light that passed through each lens.

Rather than blocking off the peripheral sides to test just the filter itself, I intentionally left the same gaps you'd get from wearing the glasses—giving a more realistic picture of the lighting your eyes would actually experience.

🕶️ Glasses Tested

ID	Product Name	Price
LMUD	LIGHTMEUP Red Light Therapy Glasses	$6.99
LMU2	LIGHTMEUP Red Light Therapy Glasses Deep Green	$6.99
YL	OLINOWL Oversized Square Rimless Sunglasses Tinted	$7.69
CT	PURPLE CANYON Green Color Therapy Mood Glasses	$13.99
CTFX	GloFX Green Color Therapy Mood Glasses	$15.99
VVS	VIVOSUN Indoor Hydroponics LED Grow Room Glasses	$15.18
Altius Red	ALTIUS® Amber Performance Soft Contact Lens	—
Altius Green	ALTIUS® Grey-Green Performance Soft Contact Lens	—

📊 Rankings

The scoring combines three factors: 40% melanopic suppression (blocking pain pathways), 35% S-cone suppression (blocking blue), and 25% M-cone preservation (keeping therapeutic green).

Rank	Glasses	Score	Blue Block	Green Pass
1	LMU2	67.7	91.3%	38.2%
2	VVS	66.0	91.3%	38.2%
3	YL	65.4	84.4%	36.1%
4	Altius Red	63.2	89.7%	24.1%
5	LMUD	63.2	89.7%	24.1%
6	CT	62.4	82.3%	40.9%
7	CTFX	61.9	81.7%	42.1%
8	Altius Green	56.3	62.9%	43.0%

🏆 Key Findings

Best for Green Light Therapy

LMU2

Blocks blue & red, lets through only green light. Ideal for dedicated therapy sessions.

Best for Everyday Use

Altius Red

Blocks all blue but preserves green & red for natural color vision.

            Practical Takeaway: Higher scores indicate lenses that are theoretically better suited for
            green light therapy and migraine management. However, personal preference matters—some people prefer lighter
            tints for everyday wear even if the "score" is lower.
        

📈 Data Visualizations

The following charts from the interactive dashboard show how each lens performs across the light spectrum.

Spectral Transmission Curves showing how each lens filters light — **Spectral Transmission Curves:** Each line shows what percentage of light gets through at each wavelength. The green region (500-570nm) is where we want high transmission; blue region (380-450nm) should be blocked.

Cone Activation and Melanopic Response charts — **Cone Activation & Melanopic Response:** Bar charts showing how each lens affects the three cone types (S, M, L) and melanopic (pain-pathway) activation. Lower melanopic = less migraine trigger potential.

Wavelength Visualizer tool — **Wavelength Visualizer:** Interactive tool showing the therapeutic green range (515-550nm) that research suggests may help reduce migraine intensity.

🔍 Explore the Interactive Dashboard

See full spectral transmission curves, toggle individual lenses, and explore the complete dataset.

Visit the Dashboard →