Adapt Photochromic Merritt Blue Light Glasses – Black
Part of the Adapt Photochromic lens collection
The Adapt photochromic lens in our black Merritt frame: light yellow indoors for screens and gaming, then darker in direct sun, so one pair covers the office, the drive and the patio without swapping glasses.
Independently tested by Micro-Light Optics against ISO 12312-1, ANSI Z80.3 and AS/NZS 1067, Adapt blocks 70.6–85.4% of blue light across 400–500nm as it darkens, with 23.8–58.0% visible light transmission (Category 1–2). It darkens in 30–60 seconds in direct sun and lightens again when you step back inside.
The flexible TR90 frame weighs just 24g, light enough to wear for hours without pinching your nose or temples. A unisex square shape that suits most faces.
Inside the Lens
- Photochromic yellow Adapt lens, light indoors and darker outdoors
- 70.6–85.4% blue light blocking in the 400–500nm range
- 23.8–58.0% visible light transmission
- Cat 1–2 light-filter category
- UV400 protection, shatter-resistant polycarbonate, anti-glare coating
- Black Merritt square TR90 frame, 24g
What to Expect
The yellow tint darkens outdoors and takes a little getting used to. Photochromic lenses may stay partly tinted in cool weather and react less behind UV-treated car windshields. Light sensitivity is personal, so we recommend a 2–3 week trial. Each pair comes with one lens; the Sleep ZM range offers 14 lenses for different lighting, sold separately.
In the Box
Protective case, anti-fog cloth, and a blue light test card with mini flashlight so you can see the lens block blue light for yourself. Backed by Sleep ZM's 1-year manufacturer warranty.
A fraction of the price.
Light sensitivity buyers shopping the premium brands rarely realize there's an affordable, lab-certified alternative. Here's the math.
Sleep ZM is not affiliated with TheraSpecs or Axon Optics. Pricing reflects publicly listed entry-level non-prescription options at time of writing.
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