Shannon Safety Products and Shannon Optical have been leaders in the distribution of Personal Protective Equipment and Prescr ... iption Safety Glass Programs since 1961. Located in Pittsburgh, Pennsylvania, both the distribution of industrial safety products and supplies and our full service optical laboratory are housed in our 30,000-square-foot facility. Shannon Optical has been providing prescription safety glass programs to industry from across the United States for almost 50 years. Our professional sales team takes extreme pride in designing a prescription safety glass program that fits your needs – whether it’s new or existing. We inventory thousands of items for quick delivery. In addition to the large selection of high quality products, we offer technical support and a wide range of service options to suit the needs of any size company. read more