Blue Light Filter Lens UV420 – 3 Base 2.0mm x 70mm

Description Blue Light Filter Lens UV420 – 3 Base 2.0mm x 70mm Blue-light filtering spectacle lenses can partially filter high-energy short-wavelength light and enhance visual performance and sleep quality. These lenses may serve as a supplementary option for protecting the retina from potential blue-light hazard. The sun and artificial light sources, including LED (light-emitting diode) light bulbs and fluorescent light tubes, are the primary sources of blue light. With the increasing popularity of blue-rich LED-backlight display devices, such as mobile smartphones, ultraportable tablets, and computer screens, our eyes are exposed to more blue light than in the past.