Estimated OCT related employment. “Research” employment consists of professors, postdocs, and other university staff. “Direct OCT Industry” jobs are from a survey of 64 leading OCT system, subsystem, and component companies showing employment in engineering, marketing, sales, manufacturing, management that are directly attributed to OCT products. “Indirect Industry” shows additional ~2X number of jobs related to other employment in the OCT supply chain. “Hospital / Clinic” shows estimate of clinical jobs related to OCT.