TearLab Corporation is an in-vitro diagnostic company. The Company has commercialized a tear testing platform, the TearLab Osmolarity System, which enables eye care practitioners to test for sensitive and specific biomarkers using nanoliters of tear film at the point-of-care. The Company, through its subsidiary TearLab Research, Inc., develops technologies to enable eye care practitioners to test a range of biomarkers (chemistries, metabolites, genes and proteins) at the point-of-care. Its product, the TearLab Osmolarity System, enables the measurement of tear osmolarity in the doctor's office. The TearLab Osmolarity System consists of approximately three components: the TearLab disposable, the TearLab Pen, and the TearLab Reader. The TearLab disposable is a single-use microfluidic microchip. The TearLab Pen is a hand-held device that interfaces with the TearLab disposable. The TearLab Reader is a small desktop unit that allows for the docking of the TearLab Pen.