Eyewear Blog & Guides
Style tips, lens know-how and prescription advice to help you get the most from your eyewear.

How to Measure Your Pupillary Distance (PD) at Home
Need your PD to order glasses online? Learn what pupillary distance is, why it matters and how to measure it accurately at home.

How to Clean Your Glasses Properly Without Damaging the Lenses
Keep your glasses crystal clear for longer by learning the safest way to clean your lenses and avoid common mistakes that can cause scratches.

Single Vision vs Varifocal Lenses: What's the Difference?
Not sure whether you need single vision or varifocal lenses? Learn the differences, who each type is designed for and how to choose the right option.

Prescription Sunglasses: Everything You Need to Know
Thinking about prescription sunglasses? Learn how they work, who they're suitable for and what to consider before choosing your next pair.

What Are High-Index Lenses? Do You Need Them?
High-index lenses can make strong prescriptions thinner and lighter. Learn how they work, who they're for and whether they're worth the upgrade.

Photochromic Lenses Explained: Are They Worth It?
Thinking about transition lenses? Learn how photochromic lenses work, their advantages and disadvantages, and whether they're the right choice for your lifestyle.

How to Choose the Right Glasses for Your Face Shape
Not sure which glasses suit you best? Learn how different frame styles complement different face shapes and find your perfect pair.

How Often Should You Have an Eye Test?
Wondering how often you should have an eye test? Find out the recommended frequency for adults, children and those with existing eye conditions.

What Does SPH, CYL and AXIS Mean on My Glasses Prescription?
Confused by the numbers on your glasses prescription? Learn what SPH, CYL and AXIS mean and how they affect your vision.

What Is Astigmatism? Symptoms, Causes and Treatment Explained
Find out what astigmatism is, what causes it, the symptoms to look out for and how glasses can provide clear, comfortable vision.

How Long Does It Take to Adjust to New Glasses?
New glasses feeling strange? Learn how long it usually takes to adjust to a new prescription, what symptoms are normal and when to contact your optician.

What Is Anti-Glare Coating and Is It Worth It?
Learn what anti-glare coating does, how it affects reflections and lens clarity, and whether it's worth adding to your prescription glasses.

Can I Buy Glasses Online Using My Prescription?
Already have a glasses prescription? Learn how to use your prescription to order glasses online, what details you'll need and the common mistakes to avoid.

Why Are My New Glasses Making Me Dizzy?
Feeling dizzy after getting new glasses? Learn the most common causes, how long adjustment usually takes and when you should seek professional advice.

Are Blue Light Glasses Worth It? What The Evidence Says
Wondering whether blue light glasses actually work? Learn what blue light is, the potential benefits of blue light lenses and what current research says.

High Index Lenses Explained: 1.5 vs 1.6 vs 1.67
Discover the differences between standard, 1.6 and 1.67 high-index lenses and learn which option is best for your prescription.

What Is Pupillary Distance (PD) and Why Does It Matter?
Learn what pupillary distance (PD) is, why it matters when ordering glasses online, and how to measure it accurately at home.

How to Read Your Glasses Prescription: A Complete UK Guide
Learn how to read your glasses prescription, including SPH, CYL, AXIS, prism and pupillary distance. A simple UK guide from SpexNation.
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