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Why protecting your eyes from the sun is just as important as protecting your skin

You probably already know that too much sun exposure can harm your skin. But did you know that ultraviolet (UV) rays can also damage your eyes? Research shows that prolonged exposure to UV radiation increases the risk of developing cataracts later in life—a condition that cannot be corrected with glasses and requires surgery.

UV radiation is one of the key reasons why our eyesight worsens with age. That's why it's so important to protect your eyes from the sun—just like you protect your skin.

Why prescription sunglasses are essential

Regular optical glasses are perfect for indoor use, but they don’t provide enough protection outdoors. If you wear prescription glasses, there’s no true alternative to prescription sunglasses. They combine the vision correction you need with full UV protection, so you can enjoy your time outside comfortably and safely.

Keep in mind that expensive sunglasses don't always guarantee proper sun protection. What really matters is whether they block UV rays. Look for sunglasses labeled with UVA + UVB protection, which shield your eyes from both types of harmful radiation.

Sunglasses with large lenses and wraparound frames provide the best coverage because they protect your eyes from light coming in from the sides as well.

What if you wear contact lenses?

Even if you normally wear contact lenses, prescription sunglasses are still a smart choice. On days when your eyes feel dry, irritated, or sensitive—like at the beach or during outdoor activities—you can give your eyes a break and switch to sunglasses.

If you're swimming, it's best to take out your contact lenses completely to avoid eye infections. Wearing sunglasses without lenses in the water is safer and more hygienic.

Also, while some contact lenses include a UV filter, they are not a substitute for sunglasses. They protect only a small part of your eye and don't block surrounding UV exposure. So even if your lenses claim to have UV protection, you still need proper sunglasses.

When should you wear sunglasses?

Even if your eyes don’t hurt after being outside, sun damage adds up over time. Research has shown that long-term exposure to UV rays significantly increases the risk of cataracts as you age.

UV rays are present even on cloudy days, so it’s a good idea to wear sunglasses year-round—not just in the summer. The sun's rays are strongest between 10 a.m. and 2 p.m., so wearing sunglasses during these hours is especially important.

More tips for sun protection

1. Wear a hat
A hat with a wide brim adds extra protection for your eyes, face, and upper body. It reduces your overall exposure to UV radiation and helps prevent sunburn.

2. Use sunscreen
Apply sunscreen to exposed skin every two hours, using about 30 ml (two tablespoons) each time. Don’t forget to reapply after swimming or sweating—even with water-resistant formulas.

3. Eat fruits and vegetables
A diet rich in antioxidants helps support healthy eyes and skin.

  • Lutein (found in mango, yellow bell pepper, and leafy greens)
  • Zeaxanthin (found in corn, broccoli, oranges, and eggs)

These nutrients are especially good for protecting your vision over time.

Upgrade your sunglasses with Glazoo

Already own a pair of sunglasses you love? Or found a great vintage frame? At Glazoo, we can fit new lenses into your existing sunglasses—whether they’re scratched, outdated, or need prescription lenses.

Sunglass lenses are available from just €65 in nearly every possible strength and color, including grey, green, and brown. Whether you need:

  • Single-vision
  • Progressive
  • Non-prescription lenses

We can fit them into almost any frame, regardless of brand or model. (Note: Some highly curved sports or cycling glasses may be an exception. Please contact us to confirm.)

We can even turn your regular optical glasses into sunglasses, giving your favorite frame a new life.

What you get with Glazoo lenses

All our lenses come with:

  • 100% UV protection
  • Anti-reflective coating
  • Scratch-resistant finish

The color of the lens does not affect how much UV light it blocks—all of our sunglasses provide full UV protection regardless of tint.

Ready to upgrade your sunglasses?

Whether you're protecting your eyes, refreshing an old favorite, or getting ready for a sunny getaway, Glazoo makes it easy to get the sunglasses you need.

Order new lenses for your favorite frame today—and enjoy the sun with full protection and perfect vision.

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