Do blue-light glasses help with screen strain?
What a Cochrane review does—and does not—tell us about blue-light filtering lenses.
THE CLEAR VISION GUIDE
Coatings & light
Separate useful features from claims.
Photochromic lenses and driving: check the variant
Different light-reactive lenses have different uses, especially behind a windscreen.
Sunglasses: check UV protection first
A dark appearance is not the same thing as a verified UV protection claim.
Anti-reflective coatings: what are you paying for?
Separate surface reflections, scratch resistance and easy-clean features when comparing coatings.
How to clean glasses without damaging the coating
A daily routine for lenses, cloths and storage, with a clear distinction from contact lens care.
Polarised sunglasses: glare relief and screen limits
Understand where polarisation helps and test your actual dashboard or phone before buying.
Night driving glare: check vision before buying a tint
Why darker is not automatically better at night, and what to ask about your driving glasses.