Scoring Guide
How CarCareTruth Scores Eye Protection
Last updated 2026-05-15
What We Measure — and Why It Matters
When owners shop for safety glasses or goggles to use around chemicals, polishers, and abrasives, the question that matters is whether the product is actually certified — and whether it's wearable for the work that needs it. A pair of "impact resistant" eyewear with no Z87.1 mark is decorative, not protective. The CarCareTruth quality score puts the cert front and center, then evaluates the secondary factors that determine whether the eyewear stays on the face during real shop work.
The Quality Score
Quality carries 75% of the Stage 1 formula for eye protection because the cert and the wearability are what buyers are actually comparing. The score uses five dimensions: ANSI Z87.1 certification (weight: 35%) is the dominant factor — Z87.1+ marked on both frame and lens beats Z87.1 basic, which beats unmarked "impact resistant" eyewear. Optical clarity (20%) measures whether the lens shows real-world distortion that pushes users to take the glasses off. Coverage and fit (15%) — peripheral coverage, OTG compatibility, and seal integrity on sealed goggles. Anti-fog performance (15%) — real fog behavior during sweaty work, not bench claims. Comfort and durability (15%) — multi-hour wear without pressure points, hinge and lens-coating lifespan.
A Z87.1+ marked product with confirmed scratch-safe optics, full coverage, and verified multi-hour comfort scores 8–9. A no-marking "impact resistant" product or a Z87.1+ product with widely-documented fit or fog failures scores 3–4.
The Health Score
Safety eyewear is passive plastic and elastomer — there is no chemical exposure from wearing it. The base health score is 9.5 for standard products. The only deductions that apply are: confirmed natural latex components in strap, headband, or seal foam (−1.0, resulting in 8.5), and confirmed PFAS-based hydrophobic surface treatment (−1.5, resulting in 8.0). Most modern safety eyewear uses TPE or silicone elastomers and surfactant-based anti-fog — neither triggers the deductions. All PPE tiers are "not needed" for this category because the product IS the PPE.
The health score reflects physical-use hazards only — there is no chemical exposure in normal use of this product.
The Environment Score
The environment score for eye protection uses three equally-weighted dimensions: lifecycle (how long the frame and hinges last), waste/replaceability (whether lenses, straps, and seals can be replaced without discarding the whole assembly), and recyclability (mixed-material polycarbonate/nylon/elastomer construction is nearly never accepted in curbside streams).
Most safety eyewear scores 4–6 on environment: adequate frame lifespan, no replacement-parts program, and poor end-of-life pathway due to bonded mixed-material construction. Brands with modular designs, published replacement-part catalogs, or take-back programs score higher.
The CCT Score
Quality 75%, Health 15%, Environment 10% (Stage 1) — then blended at 75% with a 25% CCT Opinion editorial score (Stage 2). Quality dominates because health is near-constant (9.5 for nearly every product) and cannot differentiate certified safety eyewear from uncertified imposters — the cert mark is what does that, and it sits inside quality.
Example: A standard Z87.1+ pair of safety glasses scores quality 7.0, health 9.5, environment 5. Stage 1: (7.0 × 0.75) + (9.5 × 0.15) + (5 × 0.10) = 5.25 + 1.43 + 0.50 = 7.18 Stage 2: (7.18 × 0.75) + (7.0 × 0.25) = 5.39 + 1.75 = 7.14 — Recommended.
CCT Opinion (25% of Stage 2) reflects editorial judgment: does the brand honestly document the cert and disclose anti-fog limitations, is the price competitive, and does the spec sheet show what shop users actually need to know?
What This Score Doesn't Measure
Scores are based on build quality research, community long-term use data, and specification verification — not hands-on product testing. There is no SDS or chemical analysis for this category.
The quality score does not account for color preferences, prescription compatibility beyond OTG fit, or specific aesthetic factors. The environment score reflects category-level recyclability reality and does not test individual lot disposal — it assumes the realistic case of curbside disposal in most US municipalities.