Why do blue light glasses turn your screen yellow?

Yellow tinting happens when lenses use heavy surface coatings or amber-tinted materials that block broad-spectrum light. CLÆR SPECTRUM™ lenses use an embedded filtration process that targets only the 400–450nm blue-violet range, leaving the rest of the visible spectrum intact — so colours look accurate and lenses appear clear on screen.

What is the difference between a surface coating and an embedded lens filter?

A surface coating sits on top of the lens and can scratch, peel, and fade over time. An embedded filter — like CLÆR SPECTRUM™ — is built into the optical material itself during manufacturing. Nothing to wear off. The filtration is permanent for the life of the lens.

What does ~55% blue-violet filtration at 400–450nm mean?

It means CLÆR SPECTRUM™ lenses block an average of ~55% of light in the 400–450nm wavelength range — the high-energy blue-violet band most associated with digital eye discomfort. The filtration is strongest at 400nm and tapers deliberately through to 450nm, which protects colour accuracy for screen-based work.

What is SHMC coating on glasses?

SHMC stands for Super Hydrophobic Multi-layer Coating. It is a premium optical surface treatment that reduces glare, repels water and oil, resists scratches, and makes lenses easier to clean. All CLÆR SPECTRUM™ lenses include SHMC coating as standard.

What is UV400 protection?

UV400 means the lenses block all ultraviolet light up to 400 nanometres — covering both UVA and UVB rays. This is the highest level of UV protection available in eyewear. CLÆR lenses show 0.00% UVA/UVB transmittance, independently tested.

Are CLÆR SPECTRUM™ lenses independently tested?

Yes. CLÆR SPECTRUM™ lenses are independently tested to ISO 12312-1:2022 and ANSI Z80.3-2018. The full spectral transmittance curve (380–780nm) is published directly on this page — plotted from raw lab data at 5nm intervals, not estimated or cherry-picked.

Do the lenses have a tint?

There is a very subtle tint. If you hold the lenses up to a white wall you may notice a slight shift — that is physics, it happens with any lens genuinely filtering blue-violet light at this level. On a screen, which is what they are designed for, the lenses read completely clear with no yellow tint and no interference with colour accuracy.

Frame Fit Guide — SOL, NORD, VERA Sizes

SOL

ROUND

Soft, circular lenses that suit angular face shapes well — squares and rectangles in particular, where the curve offers contrast.

Lens width 49mm

Bridge 22.5mm

Temple length 145mm

Frame height 46.7mm

SHOP SOL

NORD

SQUARE

Strong, structured lines. Works well on rounder or softer face shapes, adding definition without overwhelming.

Lens width 50mm

Bridge 19mm

Temple length 145mm

Frame height 42mm

SHOP NORD

VERA

RECTANGLE

Balanced and versatile. The most adaptable shape across face types — a safe, considered first choice.

Lens width 51mm

Bridge 18mm

Temple length 145mm

Frame height 46mm

SHOP VERA

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LENS WIDTH

The horizontal width of one lens, edge to edge, usually printed inside the temple arm as the first number (e.g. 49□18-145).

BRIDGE WIDTH

The gap between lenses, sitting on your nose. The second number in that same printed sequence.

TEMPLE LENGHT

The arm length from hinge to tip. The third number in the sequence — all three CLÆR frames share 145mm.

If your current pair feels right, match it against the numbers above — they'll get you closer than any face-shape guess.

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