Blue light blocking glasses are specially designed eyewear that filter out a portion of blue light emitted by digital screens, such as those on computers, smartphones, and tablets. This type of light can contribute to eye strain and discomfort, especially after prolonged use of electronic devices. Many people wear these glasses to reduce symptoms like headaches and fatigue associated with extended screen time. While research on their effectiveness is ongoing, some users report improved comfort and better sleep quality when using blue light blocking glasses in the evening.