Choosing your lenses

Lenses that darken in the sun

Clear indoors, grey outdoors. They react to UV light, so they darken even on a cloudy day and clear again when you come inside. They cover categories 0–3.

Temperature plays a part too: the same lens can darken a little differently in the cold than in the heat. Behind the wheel they stay lighter, because most windscreens block the UV that makes them darken.

Polarised sunglass lenses

Always dark, category 3, and made for bright sun. The polarising filter cuts reflected glare from water, snow and wet roads, which makes this the lens to choose for daytime driving.

Never wear the sunglass lens for night driving.

Progressive reader lenses

The top of the lens is for distance and the bottom holds a fixed reading strength, so you can read your phone and still see across the room. Choose +1.0, +1.5 or +2.0, with +2.5 on the way. The reader lenses darken in the sun as well.

Most people take a few days to get used to progressive lenses. Turn your head toward what you want to see rather than looking out of the corner of the lens, where it is less sharp.

Choosing a reading strength

• Start from the strength you already use in reading glasses.
• Stronger is not better: too much magnification makes you hold things closer.
• Age is only a rough guide. The distance you read at matters more.
• If your eyes differ from each other, or you are unsure, ask an optician.

When you need an optician instead

Ready-made reading lenses do not replace an eye test. If you have a prescription for distance, astigmatism, or eyes that need different strengths, see an optician or optometrist.

Through our partner IceOptik we offer lenses made to your prescription in SonaVue frames, including prescription sunglasses. Get in touch or mention it in your order. Your own optician can also fit lenses to the frame.

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