Second Pair: Why a Backup Pair Saves You Every Day
A spare pair of glasses isn't a luxury but a safety net - for the moment your main pair breaks, gets lost or is forgotten.
Why does a polarized lens cut the glare off water? What does an anti-reflective coating actually do? How is a Mazzucchelli acetate frame made and what separates Trivex from polycarbonate? Here we explain the science behind glasses in simple terms, together with practical care and cleaning instructions.
This knowledge is what helps us recommend the right lenses for every frame and every use.
11 articles, newest first.
A spare pair of glasses isn't a luxury but a safety net - for the moment your main pair breaks, gets lost or is forgotten.
Travel is one of the toughest tests for your eyewear. Learn how to pack smart so your glasses arrive intact — no scratches, no warping, no surprises.
A journey through cellulose acetate making, from Mazzucchelli's colourful sheets to the handcrafted finish that brings a frame to life.
Ultra-thin layers a few nanometres thick, destructive wave interference, and why you see green or purple glints. A nerdy deep-dive into optics.
A parked car's dashboard in July exceeds 80C - enough to warp a frame and crack lens coatings. Here's what heat does to your glasses and how to keep…
Why the sea "burns" your eyes at midday, and how a film of aligned molecules slices through glare like a grille. The science behind polarized lenses.
Which lens material is truly the best? We compare durability, weight, optical clarity and thickness, so you can pick the right lenses with confidence.
What lens coatings actually do - and why they make a real difference in clarity, style and comfort.
There's no single 'best' frame material. Compare acetate, metal, TR90 and titanium on weight, strength, comfort and style to find your ideal match.
The refractive index determines how thin and light your lens will be. See what 1.50, 1.59, 1.67 and 1.74 really mean and how to pick the right one…
Sunglasses don't have an expiry date, but wear and tear does take its toll. Here are the clear signs it's finally time to swap them out for a new…

The articles are written and reviewed by the team of opticians of Eye-Shop, based on daily experience in the store, the specifications of lens and frame manufacturers and the guidance of official bodies. They are updated when collections, technologies or procedures change.
Health articles are informative and do not replace an examination by an ophthalmologist. About us · Contact