Eyewear, explained
A frame is worth repairing when the damage is mechanical rather than structural — a loose hinge, a snapped screw, a bent temple, a cracked nose pad — and the material underneath is sound. It stops being worth it once the break runs through the frame’s core structure, keeps recurring, or the frame was never … Read more
There’s no fixed expiry date on a pair of glasses. A well-made frame in good material can last a decade or more; the lenses inside it usually need replacing sooner, often every two to three years, because coatings wear and prescriptions change. Frame and lens age separately, and it’s worth knowing which one is failing … Read more
Sweat is salty and slightly acidic, and sunscreen is a cocktail of oils, alcohols and UV-filtering chemicals designed to bind to skin. Neither is designed with metal plating, acetate, or lens coatings in mind. Left on a frame, both accelerate corrosion, cloud coatings, and can soften or discolour acetate over time. None of this happens … Read more
Glasses fog because warm, moisture-laden air — usually breath — hits a lens surface that is colder than the air itself, and the water vapour condenses into visible droplets. Anything that widens that temperature gap, or channels breath upward across the lens, makes it worse. Anything that closes the gap or redirects the airflow helps. … Read more
Most glasses benefit from a professional check every six months, and an adjustment whenever they start slipping, pinching, or sitting unevenly — whichever comes first. There’s no fixed schedule that suits everyone; frame material, how often the glasses come off, and daily habits all change how quickly fit drifts. Is there an actual recommended interval? … Read more
Frames lose their shape through a combination of heat, pressure and repeated small stresses — being sat on, left on a warm dashboard, folded the wrong way night after night, or simply worn past the point where the material can spring back. Acetate softens and drifts; metal fatigues and bends; hinges loosen and let the … Read more
Glasses should be stored folded, lenses facing up, inside a rigid case, somewhere that stays at roughly room temperature and out of direct sun. The three enemies are pressure on the lenses, heat that can warp frame material or soften adhesives, and the kind of loose storage — bags, pockets, tabletops — that invites scratches … Read more
A shirt damages glasses because it drags whatever dust, grit or fabric residue is sitting on it straight across the lens surface, and most shirts are woven tightly enough to trap those particles rather than lift them away. The result is fine, cumulative scratching in the coating layer — not the glass or plastic underneath, … Read more
Rinse the lenses under lukewarm running water first, then clean them with a small amount of mild, lotion-free soap on your fingertips, and dry with a clean cotton or microfibre cloth. The scratches most people blame on “cheap lenses” are usually caused by wiping dry grit across the surface, not by the lens itself. What … Read more
About what you read here. Everything on The Designer Glasses is general information and our own editorial opinion. We research carefully and we say when the evidence is unclear, but we can be wrong, things change, and no article can know your particular situation. Please do your own research and make your own judgement rather than treating anything here as the final word. This is not medical advice, not a diagnosis, and not a substitute for speaking to an optometrist, optician or eye doctor about your own eyes, vision and eyewear. We are writers and researchers, not clinicians. We do not recommend prescription treatments or give doses. If something is painful, getting worse, or worrying you, please talk to a professional — going early is not an overreaction.