At low temperatures, water vapor condenses into smaller particles that attach to or around the lens. When encountering high-temperature air, small particles of solid water vapor will liquefy or evaporate, causing the cheapest eyeglasses lens to fog and affecting visual clarity.

How can the fog droplets on the discount glasses lens no longer interfere with the clarity of the visual object? The most commonly used method at present is to reduce the surface tension of fog beads so that the fog beads on the lens aggregate form an ultra-thin water film.

A specialized anti-fog cleaning agent for glasses can form a dense, ultra-thin, and ultra-transparent biological coating on the surface of the lens, converting fog droplets into a transparent microglass layer, thereby achieving the goal of anti-fog. At present, eyewear-specific anti-fog agents are commonly used in swimming goggles, but in fact, they have certain effects on various optical glasses, optical resin sheets, and various coated lenses currently sold in the market.

This method is the most practical, simply apply surface active substances such as soap solution, dishwashing detergent, or shower gel to the lenses, and then wipe them evenly with glass cloth to polish them. Some people are concerned that using products with certain corrosive effects such as soap solution may damage the coating on the surface of the lens, thereby damaging the radiation protection function of the coating or scratching the lens.

Actually, there is no need to worry because after applying soap solution, we will use a soft eyeglass cloth to dry the surface of the lens, and there will be basically no residue on the mirror surface, so it will not cause harm to our eyes or lenses.