Check the instructions for your pair
Start with the lens and frame maker’s care directions. ZEISS describes lukewarm water with a little pH-neutral washing-up liquid, followed by gentle drying with a microfibre cloth, as an option for spectacle cleaning. Special frame finishes may need different care.
Avoid rubbing dirt into the surface
A shirt sleeve or tissue can carry particles that scratch a lens. Keep a clean lens cloth and use a compatible cleaner when needed. A hard coating improves resistance but does not make a lens scratch-proof; polishing a scratch away is not a safe home repair.
Storage is part of care
Use a protective case when the glasses are not in use and keep them away from prolonged heat, such as a hot car dashboard. For recurring haze, peeling or cracks, ask the dispenser to inspect the pair rather than scrubbing harder.
Keep the two care routines separate
This article is about spectacle lenses. Contact lenses require their own prescribed disinfection system and must be kept away from water. Our practical suggestion is to store spectacle cleaner separately from contact lens products so the bottles are not confused.
Sources & verification
Sources checked: