Lens cleaning is the process of removing dirt, dust, and smudges from the surface of optical lenses, such as those found in glasses, cameras, and microscopes. Proper cleaning helps maintain clear vision and ensures optimal performance of the equipment. It is important to use appropriate cleaning solutions and tools to avoid scratching or damaging the lens. To clean a lens, start by using a soft, lint-free cloth, often made of microfiber. Lightly dampen the cloth with a lens cleaner or a mixture of water and mild soap. Gently wipe the lens in a circular motion, avoiding excessive pressure. Always store lenses in a protective case when not in use to prevent future contamination.