FEATURES ✓ Protect your eyes from harmful High Energy Blue Light with Agstum Vision Blue Light Shield ! ✓ Blocks 90% of high energy blue light* (To provide maximum protection) ✓ Lets through 70% of low energy blue light* (For minimal color distortion) ✓ Protect your eyes from daily life and electronic products. ✓ Anti eye fatigue, more concentrate on working and learning. ✓ Minimized the headache and enjoy a good sleep for a whole night. INCLUDES 1x Cleaning soft cloth ​1x Plastic case ​1x Anti-blue ray glasses What is the Blue Ray ？ Blue Ray is part of visible light spectrum and is emitted by the sun and artificial light sources such as LEDs,computers,and smart phones.However,blue-violet light can have a harmful impact on the eyes. Injury the structure of macular, will cause eye strain and blurred vision, even lead to permanent eye damage and vision loss. Stare at the computer or smartphone all day? Studies have shown that prolonged exposure to emitted light source – especially High Energy Blue Light – may cause: - Painful or dry eyes - Fatigue and stress (hard to focus for long periods of time) - Insomnia (hard to fall asleep or poor sleep quality) - Macular degeneration and other vision conditions Who needs to use the anti blue rays glasses ? Gameplayer Computer workers Mobil phone fan