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UV400 vs polarised: what’s the difference?

One protects your eyes, the other helps you see comfortably. Here’s why both matter.

· 1 min read

UV400 means the lens blocks all ultraviolet light up to 400 nm. That’s about health: UV exposure raises the risk of cataracts and retinal damage.

Polarisation filters horizontal glare reflected from water, snow and wet roads. Colours look crisper and your eyes tire less — ideal for drivers and anglers.

Which one?

UV400 is a must in every pair of sunglasses. Polarisation is about comfort; note that it can make some phone screens harder to read.

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