TearLab Corp is a part of the diagnostic industry. It is an in-vitro diagnostic company based in the United States. TearLab has commercialized a proprietary tear testing platform, the TearLab Osmolarity System that enables eye care practitioners to test for highly sensitive and specific biomarkers using nanoliters of tear film at the point-of-care. The company operates through its wholly-owned subsidiary, TearLab Research Inc. Most of the company's revenue is derived from the United States region.