1. There is no relative standard in China though the kid’s sunglasses are very popular on the market. China Glass. Sci. Technol. Mag. (09) (2015)
2. Ren, M.: Nearly 70% kid’s sunglasses from online shopping are unqualified. Qual. Explor. (07) (2014)
3. Zhang, C., et. al.: Understanding international standard for sunglasses ISO 12312-1:2013. China Glass. Sci. Technol. Mag. (13) (2014)
4. TIANRUN RX LAB: Pioneer of one-stop customized service for sport sunglasses lens. China Glass. Sci. Technol. Mag. (11) (2015)
5. Xiao, L.: Strengthen market supervision and management to provide quality-assured glasses to consumers. Ind. Measur. (02) (1999)