Sunglasses generally do not protect against blue light. Sunglasses are mainly used outdoors to prevent UV radiation from causing damage to the eyes. For the anti-blue light, mainly to deal with indoor blue light exposure, so sunglasses generally can not prevent blue light. If you want to prevent blue light, you need to go to a professional anti-blue light glasses. Anti-blue light glasses are a kind of glasses that can prevent blue light from irritating the eyes. Anti-blue light glasses are made of special materials, which can generally block about half of the harm of blue light. Anti-blue light glasses, suitable for use when using cell phones, computers and other electronic devices, can effectively reduce the damage of blue light to the eyes. Anti-blue light glasses reflect the harmful blue light by coating the surface of the lenses, or absorb the harmful blue light by adding anti-blue light factor to the lens substrate, so as to achieve the effect of anti-blue light. Sunglasses and anti-blue light glasses are different, wear glasses to go to the regular organization.