Eyewear Blog & Guides

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

Person measuring pupillary distance using a ruler while looking in a mirror
Eyewear Guides

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.

3 min read
Person cleaning prescription glasses with a microfibre cloth on a clean desk
Eyewear Care

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.

2 min read
Person comparing single vision and varifocal lenses with glasses on a clean modern background
Lens Guides

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.

2 min read
Man and woman wearing stylish prescription sunglasses outdoors on a sunny day
Sunglasses Guides

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.

3 min read
Thin high-index prescription lenses beside standard thickness lenses for comparison
Lens Guides

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.

3 min read
Person wearing photochromic glasses changing from clear indoors to dark outdoors
Lens Guides

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.

3 min read
Man and woman wearing different glasses styles suited to different face shapes
Eyewear Guides

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.

3 min read
Optometrist performing an eye examination on an adult patient
Eye Care Guides

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.

3 min read
Close-up of a glasses prescription showing SPH CYL and AXIS values beside prescription glasses
Eye Care Guides

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.

3 min read
Person wearing glasses with blurred vision caused by astigmatism
Eye Care Guides

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.

3 min read
Person adjusting to new prescription glasses while wearing them at home
Eye Care Guides

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.

4 min read
Comparison of prescription glasses with and without anti-glare lens coating
Lens Guides

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.

4 min read
Glasses prescription beside prescription eyewear while ordering glasses online
Eyewear Guides

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.

4 min read
Person wearing new glasses feeling dizzy while adjusting to a new prescription
Eye Care Guides

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.

2 min read
Person wearing blue light glasses while working on a laptop
Eye Care Guides

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.

3 min read
Comparison of standard and high index spectacle lenses
Lens Guides

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.

3 min read
Person measuring pupillary distance for prescription glasses
Eye Care Guides

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.

3 min read
Optician explaining a glasses prescription to a patient
Eye Care Guides

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.

3 min read

Shop the SpexNation Collection

Enjoyed the read? Put it into practice with our prescription glasses UK range, or browse men’s glasses and women’s glasses to find your next pair.

Heading into the sun? Explore our prescription sunglasses UK and non prescription sunglasses UK for everyday UV protection.