Clean eyeglasses without scratching lenses: lukewarm water and microfiber
Rinse dust from lenses before wiping and use lens-compatible cleaning methods with a clean microfiber cloth to reduce scratch risk.
Rubbing dry lenses with a shirt or paper towel may grind dust into the surface. ZEISS recommends lukewarm rinsing, suitable cleaner and clean microfiber. Special coatings and frames may need optician-specific care.