This standard focuses on the transmittance requirements for children's sunglasses and sunglasses; the optical parameters are stricter than the requirements for adult sunglasses; it has the function of protecting against ultraviolet rays; it stipulates the requirements for the amount of nickel precipitation; the horizontal center distance is set at 54mm (different from 62mm for adults); the lenses should Use anti-impact lenses to meet the requirements of the falling ball test.