IOR is a Romanian company established in 1936 that specializes in optical glass processing and opto-mechanical devices. It was initially focused on military products but began producing eyeglasses and microscopes in the late 1940s/early 1950s. IOR has since expanded into many other areas including medical, cinematography, lasers, and more. It has undergone structural changes in recent decades to renew its technological lines and quality control systems in order to provide high quality products to domestic and international markets.