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.