Blue light glasses, also known as blue light blocking glasses, are designed to filter out or block a portion of the blue light emitted by electronic devices and artificial lighting sources. What is blue light? Blue light is a high-energy, short-wavelength light that occurs naturally in sunlight. It is also emitted by many artificial sources such as computer screens, smartphones, tablets and fluorescent lighting. Prolonged exposure to blue light, especially in the evening or at night can negatively affect both eye health and sleep patterns. How do they filter out…
