screen-filters
EyeJust Blue Light Blocking Screen Protector
EyeJust offers a high-performance physical filter that blocks the most harmful wavelengths of blue light (up to 50% of 440-460nm) without significantly altering the screen's color profile.
Quality & Materials
Uses a proprietary film technology that targets the peak of the blue light spectrum (450nm) where retinal damage and melatonin suppression are most likely.
Evidence & Testing
Tested by independent labs to verify blue light reduction percentages, though it lacks the formal medical device registration of Ocushield.
Brand Transparency
Provides clear marketing data on blocking percentages but less raw spectral data than Ocushield or Iris.
Value Assessment
Moderately priced; a solid middle-ground for users who want physical protection without the bulk of a hang-on monitor filter.
Why Not Alternatives?
EyeJust is more accessible in the US market than some European medical brands and offers a wider range of sizes for tablets and phones compared to niche industrial filters.
Sources & References
More in Circadian & Light
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Bon Charge
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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
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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.