Anti scratch coding

Anti-scratch coating is a protective layer applied to prescription lenses to enhance their durability and resistance to scratches. It is a thin, transparent coating that is typically made of a hard material, such as silicon dioxide or titanium dioxide.

The coating is applied to the front and back surfaces of the lens using a vacuum deposition process or a dip coating method. During this process, the lenses are placed in a chamber where the coating material is vaporized and then condensed onto the lens surfaces. This creates a thin, uniform layer that adheres to the lens.

The anti-scratch coating provides several benefits. Firstly, it helps to prevent scratches and abrasions on the lens surface, which can occur from everyday use, handling, or accidental contact with objects. This is particularly important for prescription lenses, as scratches can impair vision and reduce the clarity of the wearer's sight.

Additionally, the coating can also make the lenses easier to clean, as it creates a smoother surface that is less prone to attracting dirt, dust, and oils. This can help to maintain the optical quality of the lenses and ensure clear vision.