Use lukewarm water with a few drops of washing-up liquid to clean your lenses. A microfiber cloth is suitable for drying. (Please do not use kitchen paper, T-shirts, etc.).
Avoid exposing your lenses to high temperatures. This can be the case on the dashboard of your car, for example. Glasses should also not be exposed to direct sunlight. Only mineral lenses are suitable for use in saunas.
Store glasses in a sturdy case when not in use.
Please do not use cleaning agents on glasses made of natural horn, as these will dry out the material over time.
