Available In Black Plastic Frame Square Lens Clear Lens With Bluelight Technology All Of Our Screens Produce Artificial Blue Light, Which Strains Our Eyes. Over Exposure To Artificial Blue Lights Hurts Our Eyes, And Our Bluelight Technology Helps To Combat That Strain! Bluelight Filtering Glasses Help To Block The Penetration Of Blue Light From Our Phone, Computer, Etc. How Do These Glasses Help You? Bluelight Technology Will: Reduce Eye Strain, Help You Sleep Better, Reduce Headaches, And Lower Your Change Of Long Term Vision Problems Imported California Proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.