More than a fashion statement: Why your sunglasses must be medical grade

Summer has arrived in Amsterdam! The terraces are full, and the sunglasses are coming out. For most people, buying sunglasses is a fashion choice: "Do these frames suit my face?"

As optometrists, we ask a different question: "Do these lenses actually protect your eyes?" Because wearing the wrong sunglasses can be more dangerous than wearing none at all.

The "Dark Lens" Trap

Here is a scary fact: If you buy cheap sunglasses at a market stall that have dark lenses but no UV filter, you are damaging your eyes.

How? Behind a dark lens, your pupil dilates (opens up) to let in more light. If the lens doesn't block UV radiation, you are essentially opening the door wide for harmful UV rays to flood into your eye. This increases the risk of cataracts and macular degeneration later in life.

What should you look for?

At Zeker Zicht, we ensure every pair of sunglasses meets medical standards. Look for:

• UV400 / 100% UV Protection: Non-negotiable.
• Optical Quality: Cheap plastic lenses have distortions that tire your brain. High-quality optical lenses give relaxed vision.
• Polarization: Highly recommended for driving or water sports. It filters out the blinding glare from wet roads or water surfaces.

Prescription Sunglasses (Op sterkte)

Do you wear glasses? Switching between your regular specs and non-prescription sunglasses is a hassle. We can fit almost any fashionable frame with lenses in your exact prescription.

Protect your eyes with the same care you protect your skin. UV damage is cumulative—it adds up over the years.