5a grade high light transmission anti-blue light lens(5A级高透光防蓝光镜片) class 9a anti-blue light reading glasses [no fatigue when looking at mobile phones]](9A级防蓝光老花镜【看手机不疲劳】) (grade c ordinary film)(（C级普通片）)

100 degrees [suitable for 45-49 years old]](100度【适合45-49岁】) 150 degrees [suitable for 50-54 years old]](150度【适合50-54岁】) 200 degrees [suitable for 55-59 years old]](200度【适合55-59岁】) 250 degrees [suitable for 60-65 years old]](250度【适合60-65岁】) 300 degrees [suitable for 65-69 years old]](300度【适合65-69岁】) 350 degrees [suitable for 70-74 years old]](350度【适合70-74岁】) 400 degrees [suitable for over 75 years old]](400度【适合75岁以上】)