Luca Nero (Day) is our bold black rectangular frame reimagined for daytime blue light filtering. Crafted from premium Italian Mazzucchelli acetate — prized for its glass-like clarity, durability, and lightweight all-day comfort — Luca Nero (Day) pairs a strong, confident silhouette with clear or lightly tinted lenses that filter the high-energy blue wavelengths from screens and LED lighting while preserving natural color perception.
Premium Italian acetate: Mazzucchelli acetate for glass-like clarity, durability, and all-day comfort.
Daytime blue light filtering: Reduces disruptive artificial blue light while maintaining true color — ideal for work, travel, and screen time.
Supports circadian rhythm: Keeps daytime light cues intact so your body's timing and energy systems stay aligned.
Bold, confident fit: Strong rectangular black frame available in Non-Prescription, Readers, and Prescription options.
This is the Day version — meant to be worn during daylight hours to reconnect the human body with the signals of life. Our Night version offers deep amber/red lenses to block evening blue light and protect melatonin production for sleep. Choose Luca Nero (Day) to build a more regenerative indoors and restore the signals of life.
Independently lab-tested: 100% of the blue light hazard range blocked, 80% visible light preserved
This lens was independently tested by Optimize Your Biology using spectrometer transmission readings across 350–950nm. Results: 100% blocked in the 435–475nm range specifically associated with the blue light hazard, 97% blue light blocked overall, while still allowing 80% of visible light through for daytime clarity — more visible light than EMR-TEK Yellow (78%) or ROKA Amber (75%), with comparable clarity to VivaRays Daytime (81%) and TrueDark Daylights (80.8%). See the full independent test data, methodology, and references →
