Blue light glasses are a type of glasses that are designed to filter out blue light from digital devices. Blue light is a type of visible light that is emitted by electronic screens, such as computers, smartphones, and tablets. It is also found naturally in sunlight. Too much blue light can cause eye strain and headaches. It can also interfere with sleep. Blue light glasses can help to reduce the amount of blue light that your eyes are exposed to, which can help to protect your eyes and improve your sleep. If you spend a lot of time looking at digital devices, then blue light glasses may be a good option for you.