Established in 1937, Katz & Klein is one of the oldest laboratories in California. Operating as a wholesale laboratory, it supports many professional schools and associations, as well as professional trade shows and trade journals through advertising. Katz & Klein serves as a contract laboratory for P.E.N., V.S.P., Vision West and C&E. It offers services, such as DVI - Digital Vision; state-of-the-art equipment, Supreme Partnership in Eye Care (S.P.I.E.) and Katz Prudent Plan (frame & lens package), among others. Katz & Klein is a member of the GLOBAL network, an association of 20 independent optical laboratories. The company manufactures prescription safety lenses available in Polycarbonate, CR39 and glass as per the current ANSI Standard.