In order to correctly care for your lenses and glasses, ensure they are properly stored at all times to preserve their characteristics.
Use microfiber or suede towels to remove humidity and dust without scratching the lenses. For a deeper clean, wash them under lukewarm water with a neutral soap. It is also possible to use specific products, such as sprays. Make sure that you use a soft absorbing paper or a clean cloth. Avoid drying with a t-shirt, the edge of a sweater, jumper etc; improper towels or absorbing papers may cause damage, discolouration, and scratches to the lenses
Do not rest your eyeglasses upside-down (with the lenses on the table for example) because they might scratch, meaning they may not ensure a completely clear vision for future use. Avoid exposing the lenses to any chemical solvents which could affect or discolour the surfaces. Store the eyeglasses (when not used) in the dedicated case, keeping them away from sources of heat including direct sunlight, (for example the car dashboard) for long periods of time.