blue-light-glasses
Sunset Lenses (Clyde Frame)
Ra Optics is the industry leader in precision optics for circadian health, utilizing proprietary pigments that provide a sharp 550nm cutoff. Unlike most competitors, they use high-quality CR-39 plastic lenses which offer superior optical clarity compared to cheap polycarbonate.
Quality & Materials
Uses CR-39 ophthalmic-grade resin for maximum clarity and durability. The lenses are infused with proprietary pigments rather than a simple surface coating.
Evidence & Testing
Developed in consultation with leading photobiology experts. They provide clear transmission spectrum graphs showing a 100% block of light below 550nm.
Brand Transparency
Fully transparent about their manufacturing in world-class optical labs and their specific 'cutoff' wavelengths.
Value Assessment
High price point ($150+), but justified by the optical quality and the precision of the light filtration which is rarely matched.
Why Not Alternatives?
Most 'blue blockers' only filter up to 450nm; Ra Optics specifically targets the 450-550nm range (blue and green light) which research shows is critical for melatonin suppression. Cheap Amazon brands often use a surface coating that peels, whereas Ra Optics infuses the tech into the lens.
Sources & References
More in Circadian & Light
Bon Charge
Sleep Blue Light Blocking Glasses
Bon Charge (formerly BluBlox) offers laboratory-tested lenses that block 100% of the blue and green light spectrum from 400nm to 550nm. Their frames are exceptionally high quality, and they offer prescription, reading, and non-prescription options.
BlockBlueLight
NightLens Blue Light Blocking Glasses
BlockBlueLight offers the best balance of clinical-grade spectrum accuracy and affordability. Their NightLens is specifically designed to block 100% of blue and green light up to 550nm, backed by accessible spectral analysis reports.
Swanwick
Classic Night Swannies
Swanwick is the brand that popularized blue blockers for sleep. Their orange 'Swannies' are effective at blocking blue light and are a reliable, well-reviewed entry point for those new to circadian optimization.
Mito Red Light
MitoPRO 300
The MitoPRO 300 is the industry benchmark for mid-sized panels, offering a quad-wavelength output (630nm, 660nm, 830nm, 850nm) that targets both surface skin and deep tissue. It features a flicker-free driver and very low EMF at treatment distances, making it ideal for circadian rhythm entrainment and recovery.