Elysse Bell is a finance and business writer for Investopedia. She writes about small business, personal finance, technology, and more. Dr. JeFreda R. Brown is a financial consultant, Certified ...
Blue light is a high-energy part of visible light from the sun, screens, and light-emitting diode (LED) bulbs. Your cornea and lens don’t block blue light the way they block ultraviolet (UV) rays.