Light-adaptive lenses, which automatically darken in sunlight and return to clear indoors, offer convenient vision correction and protection from ultraviolet (UV) radiation. For example, they eliminate the need to switch between prescription eyeglasses and sunglasses.
This technology provides significant advantages, including enhanced visual comfort in varying light conditions and reduced eye strain. Historically, these lenses utilized glass substrates, but modern versions predominantly employ lighter and more impact-resistant materials like polycarbonate and various plastics. This advancement has broadened their applicability, particularly for safety eyewear and children’s glasses.
