How to protect your glasses while travelling

Protecting your glasses while travelling comes down to three things: a proper case, sensible packing and an awareness of heat, sand and water. Get those right and your eyewear arrives exactly as it left, which is more than can be said for most things in a suitcase.

It is a small detail that becomes a large problem at precisely the wrong moment. A scratched lens on the first morning of a holiday, a frame crushed in a rucksack, a pair left warping on a car dashboard: these are the everyday disasters of travelling with eyewear, and almost all of them are avoidable.

Why glasses are so vulnerable on the move

At home, glasses have a routine: a bedside table, a desk, a case that lives in the same drawer. Travel dismantles that routine entirely. They end up in coat pockets, on café tables, wedged between a laptop and a water bottle.

The threats multiply accordingly. Pressure inside a packed bag bends frames and pops lenses. Grit and dust behave like sandpaper against a lens surface. And heat, the most underestimated of all, can soften acetate and degrade lens coatings long before you notice anything is wrong.

There is also the simple matter of frequency. On holiday, glasses are taken off and put back on far more often than at home: at the pool, in the sea, on a coach, at a restaurant table. Every one of those moments is an opportunity to scratch a lens or leave a pair behind, which is why a habit, rather than a product, is usually the best protection.

The case is non-negotiable

It sounds obvious, and it is the rule most often broken. In transit, the case is the only thing standing between your glasses and everything else in your bag.

Hard or soft?

A hard case is essential whenever your glasses travel inside luggage, a rucksack or a handbag shared with other objects. It is the only type that survives being sat on, packed against, or dropped. A soft pouch protects against dust and light scuffs, nothing more, reserve it for short journeys and protected pockets, never for a compressed bag.

Whichever you use, the same rule applies: store glasses folded, with the lenses facing upwards, so the optical surface never rests against the base of the case.

Where to pack it

Not all corners of a suitcase are equal. A few placements make a genuine difference:

• In your hand luggage, never the hold, checked bags face crushing pressure and wide temperature swings
• Centrally in the case, cushioned by soft clothing on all sides
• Away from heavy or hard objects: shoes, chargers, bottles and toiletries

If you travel with more than one pair

Many of us carry both prescription glasses and sunglasses. The classic error is storing them together: two pairs rubbing against each other in one case is one of the most reliable ways to scratch a lens.

The fix is simply one case per pair, or a divided double case if space is short. Alternatively, a single versatile pair can lighten the load considerably, transition lenses darken outdoors and clear indoors, removing the need to carry two pairs at all.

Heat, sand and water

Three environments account for most travel damage, and each calls for a different reflex.

Heat

A car dashboard in summer can exceed 60°C. That is more than enough to warp an acetate frame and stress lens coatings, and the damage is permanent. Glasses belong in the glovebox, in their case, never on the dashboard, and never left in a parked car for hours.

Sand and salt

Sand is abrasive and finds its way everywhere. Never rest glasses on a towel or directly on the beach, and resist the instinct to wipe sandy lenses: that single motion drags grit across the surface and creates the fine scratches that later show up as permanent haze. Rinse with fresh water first, always.

Water and chlorine

Salt water and chlorine leave residues that dull lenses and corrode metal hinges. A rinse in clean, lukewarm water at the end of the day is usually all that is needed to prevent the build-up.

Cleaning on the move

Travel is where good cleaning habits collapse. A shirt hem, a napkin, a hotel tissue, all of them scratch. Pack a clean microfibre cloth and a travel-sized lens spray, and use nothing else.

For the full method, and the products that quietly ruin coatings, see our guides on the best way to clean your glasses and what not to use to clean them. If you return home with marks that will not shift, the piece on scratched glasses explains which remedies actually work.

The pre-departure checklist

Five minutes before you pack will save you a great deal on arrival:

• A hard case for every pair you are taking
• A spare pair, if you depend on glasses to see an old prescription is better than none
• A copy of your prescription, photographed on your phone, in case of loss abroad
• A microfibre cloth and travel lens spray
• A mini screwdriver for the hinge screw that always loosens at the worst moment

Protecting your eyes, not just your eyewear

Looking after the frames is one half of the equation; looking after what is behind them is the other. Strong sun, reflective water and high altitude all increase exposure, and the right lenses matter as much as the right case a subject covered fully in our guide to protecting your eyes from the sun on holiday.

Treat your glasses as travel companions rather than accessories, and they will do their job without ever demanding attention. More advice on caring for eyewear over the long term can be found in the maintenance section of the magazine.