Blue light blocking lenses reduce exposure to harmful blue light from digital devices Blue light blocking eyeglass lenses are specifically designed to filter out a portion of the high-energy visible (HEV) blue light emitted by digital screens and artificial lighting. The best blue light blocking lenses effectively reduce exposure to potentially harmful blue light while maintaining visual clarity and color perception. This technology is particularly beneficial for individuals who spend extended periods using digital devices, as it can help alleviate digital eye strain, reduce headaches, and potentially improve sleep patterns by minimizing blue light exposure before bedtime. Blue light blocking lenses are becoming increasingly popular in both prescription and non-prescription eyewear, offering a proactive solution to manage the effects of prolonged screen time on eye health and overall well-being.