Evidence reviews of health devices, wearables, filters, and related technology claims.
Evidence review WEH verdict: Uncertain Overall evidence: Low certainty Display-equipped AI glasses can cause temporary eye strain, glare and focusing changes. Permanent eye damage has not been demonstrated, but long-term studies are too limited to settle the question. The claim being checked “AI smart glasses damage your eyes because a tiny screen sits extremely close…
Evidence review WEH verdict: Unlikely Overall evidence: Low certainty Blue-light glasses are unlikely to reduce digital eye strain or protect your eyes from everyday screen use. Their effect on sleep remains uncertain. The claim being checked “Blue-light glasses reduce eye strain, improve sleep and protect the macula from screen damage.” Evidence at a glance Digital…
• Sleep totals: Fairly good, but sleep stages and wake periods are less reliable• Overnight heart rate / HRV: Looks strong in validation studies• Steps / calories: Useful for trends, not exact numbers The Marketing Claims vs the Evidence Claim 1: Smart rings accurately track sleepEvidence: Reasonably good for basic sleep totals, but weaker for…