High Quality Optical Grade Glass Lenses Lenses provide exceptionally clear images without distortion. The large, optical glass lens on this magnifier is designed to reduce eye-strain and improve image clarity. This magnifier is ideal for hobbyists, users with poor vision, specialists, and many more. Glass vs Acrylic Lens Lenses are made from optical grade glass. Lenses are polished and ground into precise prismatic lenses to enhance both quality and clarity. Lightweight and Durable Design for Easy Handling Weighing less than a pound, this magnifier will provide comfortable viewing for any amount of time.