Unlike traditional optometry operations and other websites that offer prescription eyeglasses, Zenni owns a 248,000 square-foot manufacturing facility that houses state-of-the-art Rx and Edging Labs. All customer orders are produced in our own factory.
Every order of eyeglasses goes through several stages of quality control. At each step of the manufacturing process, the Rx Lab and the Edging Lab run multiple quality checks, including scoping the prescriptions after surface generation and checking for defects after each of the coating and tinting steps. The final QC checks for all defects and ensures that each eyeglass prescription matches its original order before releasing it for shipping.