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Sunglasses Coatings Explained: How Lens Technology Really Works
A comprehensive guide to sunglasses coatings explained with clarity. Explore how UV400 protection, polarization, scratch-resistant layers, mirrored coatings, gradient lenses, and VLT function inside modern sunglasses — and why lens performance is especially noticeable on smaller frames. This article separates marketing terms from optical reality so you can choose lenses with confidence.