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Can Sunglasses Expire? (And Other Summer Eye Protection Myths)

sunglasses, UV

Can Sunglasses Expire? (And Other Summer Eye Protection Myths)

Think your old sunglasses are still protecting your eyes? Discover the truth behind common sunglasses myths and how to know when it's time for a new pair.

You've had the same sunglasses for years.

They're your favourites. They still look good. So they're still protecting your eyes... right?

Not necessarily.

There are plenty of myths about sunglasses, from whether darker lenses offer better protection to whether an old pair is just as effective as a new one.

Let's separate fact from fiction.

Myth 1: Sunglasses last forever

Not always.

Quality sunglasses are designed to last, but they're not indestructible.

Over time, everyday wear and tear, scratches and accidental damage can affect how well your sunglasses perform. If they're several years old or have seen countless summers, it's worth checking they're still in good condition.

If you're unsure, bring them into your local Eye Emporium practice and we'll be happy to take a look.

Myth 2: Darker lenses mean better UV protection

This is one of the biggest misconceptions.

The darkness of a lens has nothing to do with how much UV protection it provides.

Instead, look for sunglasses labelled as offering 100% UVA and UVB protection (UV400).

A pale lens with UV400 protection will protect your eyes far better than a dark lens without it.

Myth 3: Scratches don't matter

A few small scratches won't necessarily reduce UV protection, but they can affect how comfortably you see.

Scratched lenses may create glare, reduce visual clarity and make your eyes work harder, particularly in bright sunshine.

If your sunglasses are heavily scratched or damaged, it may be time to replace them.

Myth 4: Any sunglasses will do

Sunglasses are as much about eye protection as they are about style.

The right pair should:

  • Offer 100% UVA and UVB protection (UV400)
  • Fit comfortably
  • Reduce glare
  • Suit your lifestyle and everyday activities

Whether you're driving, walking, spending time at the beach or simply enjoying the sunshine, choosing quality sunglasses makes a real difference.

Myth 5: If they still fit, they're fine

It's easy to keep wearing the same pair year after year.

But if your sunglasses are loose, damaged or no longer comfortable, you're less likely to wear them properly when you need them most.

Summer is the perfect time to check they're still doing their job.

How to know when it's time for a new pair

It may be worth replacing your sunglasses if:

  • The lenses are badly scratched
  • The frames are bent or no longer fit properly
  • They're several years old and well worn
  • You need a different prescription
  • You simply don't enjoy wearing them anymore

A new pair isn't just about updating your style—it helps ensure your eyes stay comfortable and protected.

Not sure about your sunglasses?

If you're unsure whether your current sunglasses are still suitable, bring them into your local Eye Emporium practice.

Our team can check them over, answer your questions and help you find a pair that's right for you.

Book an Eye Test

Or browse our latest sunglasses collection.

Explore Our Sunglasses Collection

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