Do You Really Need Polarised Lenses?
A quality pair of sunglasses does far more than complete an outfit. They protect your eyes from harmful UV rays, reduce eye strain and improve visual comfort in bright conditions.
One feature you’ll often encounter when buying premium sunglasses is polarised lenses. They usually cost more than standard lenses, but are they worth the extra investment? Understanding how they work will help you decide whether polarised sunglasses are the right choice for your lifestyle.
What Are Polarised Lenses?
Polarised lenses contain a special filter that blocks intense reflected light.
When sunlight bounces off flat surfaces such as water, roads, snow or glass, it creates glare. This glare can be uncomfortable and sometimes dangerous.
Polarised lenses are designed to reduce this reflected light, providing clearer, more comfortable vision.
What Are Non-Polarised Lenses?
Non-polarised lenses still provide excellent protection against harmful ultraviolet (UV) rays, provided they offer 100% UV protection.
However, they do not reduce glare in the same way as polarised lenses.
For everyday wear, they remain an excellent option and are often more affordable.
The Benefits of Polarised Sunglasses
Reduced Glare
This is their biggest advantage.
Driving on a bright day becomes more comfortable, while reflections from wet roads and vehicle windscreens are significantly reduced.
Improved Visual Clarity
Colours often appear richer and contrast becomes more noticeable.
Many people are surprised by how much easier it is to see detail outdoors.
Less Eye Fatigue
Constant glare causes your eyes to work harder.
Polarised lenses reduce strain, particularly during long periods outdoors.
Ideal for Outdoor Activities
They’re especially beneficial for:
- Driving
- Fishing
- Sailing
- Walking
- Cycling
- Golf
- Beach holidays
When Polarised Lenses May Not Be Ideal
Although they offer many advantages, there are situations where non-polarised lenses are preferable.
Some digital screens, dashboards and aircraft instruments can appear darker or more difficult to read through polarised lenses.
Pilots and certain professional drivers often choose non-polarised sunglasses for this reason.
Are Polarised Sunglasses Better?
Not necessarily.
They are different, rather than universally better.
If your sunglasses are mainly worn while driving, travelling or spending time outdoors, polarised lenses are often worth the additional cost.
If you wear sunglasses primarily for fashion or occasional use, non-polarised lenses may meet your needs perfectly.
UV Protection Matters Most
One common misconception is that polarised lenses automatically provide better UV protection.
They do not.
The most important feature to look for is:
100% UVA and UVB protection.
Polarisation reduces glare.
UV protection protects your eyes.
The two are not the same.
Glass vs Polycarbonate Lenses
Glass Lenses
Advantages:
- Exceptional optical clarity.
- Excellent scratch resistance.
Disadvantages:
- Heavier.
- Can break if dropped.
Polycarbonate Lenses
Advantages:
- Lightweight.
- Highly impact resistant.
- Ideal for active lifestyles.
Disadvantages:
- Slightly easier to scratch without protective coatings.
Both materials perform well when manufactured by reputable brands.
Recommended Brands
Several manufacturers consistently produce outstanding sunglasses.
- Persol
- Ray-Ban
- Maui Jim
- Oakley
- Randolph Engineering
- Oliver Peoples
- Serengeti
These brands are known for combining excellent lens technology with timeless design.
Where to Buy
Online
- Sunglass Hut
- John Lewis
- Selfridges
- Vision Express
- SmartBuyGlasses
- FramesDirect
In Store (UK)
- Sunglass Hut
- John Lewis
- Selfridges
- Vision Express
- Boots Opticians
- David Clulow
Trying sunglasses on in person allows you to assess comfort, frame size and how different lens colours affect your vision.
Common Buying Mistakes
Avoid choosing sunglasses based solely on appearance.
Always check for:
- 100% UV protection.
- Comfortable fit.
- High-quality hinges.
- Suitable lens material.
- Polarisation if required.
A well-made pair of sunglasses should feel comfortable enough to wear for hours without pressure around the nose or ears.
Final Thoughts
Polarised sunglasses are an excellent investment for anyone who spends significant time outdoors, particularly when driving or near water.
However, they are not essential for every wearer.
The most important consideration is ensuring your sunglasses provide complete UV protection, fit comfortably and suit the way you live. Choose quality over fashion trends, and a well-made pair will provide years of reliable service while protecting one of your most valuable assets—your eyesight.