How Often Should You Replace Your Glasses?

Signs it’s time for an upgrade — and what to do if you still love your frame

A question we often hear: “How often should you replace your glasses?”

The answer depends on more than just age — it’s about how your eyes are changing, how your glasses are holding up, and how well your lenses are meeting your needs.
Let’s walk through the key signs, the typical lifespan of your eyewear, and why reglazing your favourite frames might be the smartest solution.

Why It Matters

Our eyes naturally change over time-and sometimes without us even realising.
Staying on top of your prescription is essential for comfort, clarity, and long-term eye health.
Even a small change in your vision can lead to:

  • Eye strain or fatigue
  • Headaches, especially during screen time
  • Blurry or inconsistent focus

Just like you wouldn’t drive with a foggy windscreen, you shouldn’t go through daily life with a prescription that no longer works for you.

How Often Should You Replace Your Glasses?

In the UK, adults are generally recommended to have an eye test every two years, as advised by the NHS. However, some individuals may require more frequent testing, such as children under 16, who should have an eye test annually. Those with specific eye conditions, like glaucoma or diabetes, or those at risk of these conditions, might also need more regular check-ups. 

With that in mind, most people replace their glasses every one to two years, but several factors can shorten or extend that timeline:

  • Wear and tear: Scratches, loose sides, or distortion can reduce performance
  • Outdated prescription: Your vision can change subtly without warning
  • Lens technology updates: Newer lenses may offer better coatings, blue light protection, or light-adaptive features
  • Comfort and style: Glasses should feel good and match your personal style

Signs You Might Need New Glasses

You don’t need to wait for your optician to say it’s time. Here are some clear signs you may need to update your glasses:

  • Frequent headaches or eye strain, especially after reading or using screens
  • Blurry or fluctuating vision
  • Scratched or worn lenses that affect clarity
  • Frames that feel loose, crooked, or uncomfortable
  • Struggling with glare or sensitivity to light
  • Lenses not coping with digital strain or lighting changes

Do You Need New Frames-or Just New Lenses?

If your glasses still feel great and suit your style, you may not need to replace the whole pair. Often, your frame is still in perfect condition — it’s your lenses that need an upgrade.

That’s where reglazing comes in.

Reglazing means replacing the lenses in your current frame to match your updated prescription. It’s:

  • More affordable than buying new glasses
  • More sustainable, reducing unnecessary waste
  • A great option if your frames are hard to replace or have sentimental value
  • At Sapphire Optics, you can choose the Reglaze Only option and send us your frame. We’ll take care of the lens fitting and post them back, ready to wear.

How to Make Your Glasses Last Longer

Want to stretch the lifespan of your eyewear between reglazes?
Here are a few easy habits:

  • Clean with care using a microfibre cloth and lens-safe spray
  • Store safely in a hard case when not in use
  • Avoid placing them lens-down on any surface
  • Take them off with both hands to avoid bending the sides
  • Keep a spare pair for emergencies or travel
  • Check the fit regularly and have them adjusted if needed

These simple steps can help you protect both your lenses and frame for the long run.

What to Do Next

If it’s been a while since your last eye test — or you’ve spotted any of the signs above-it might be time to update your glasses.

Love your frame? Sapphire Optics’ Reglaze Only service would be your perfect solution.

When it comes to your vision, don’t settle for “it’s fine.”Make sure your glasses are giving you the clarity, comfort, and confidence you deserve.

Ready to see the Sapphire Collection?

Learn more about the lenses and coating we offer on out Lenses & Coatings page, or contact us for a personalised recommendation.

Browse our Women’s  / Men’s  / Unisex  / Kids’ frames.

FAQs

How often should I have my eyes tested?
Most people should have an eye test every 24 months, unless advised otherwise by their optician or GP.

Can I keep my glasses longer if my prescription hasn’t changed?
You can, but its not ideal. Over time, worn coatings, loose frames, or outdated lens technology can affect comfort and visual clarity-even if the prescription itself is still correct.

Do scratched lenses affect vision?
Yes. Even small scratches can cause glare, reduce clarity, and lead to eye strain-especially when driving or using screens.

Is it better to replace lenses or the whole pair?
If you love your frames and they’re still in good condition, reglazing (replacing just the lenses) is often a practical and cost-effective option.

Helpful Guides:

Wearing Glasses for the First Time? Here’s What to Expect

My Glasses Broke-Can They Be Reglazed or Repaired?

If Your Glasses Are Older Than Your Phone: It’s Time to Upgrade!

 

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