TearLab Corporation is a leading brand that offers the TearLab Osmolarity Test, which is an essential diagnostic tool for dry eye disease. This innovative test allows eye care practitioners to objectively and quantitatively measure tear film osmolarity at the point-of-care, improving the standard of care for patients. The TearLab Osmolarity System provides precise and predictive information, empowering healthcare professionals to diagnose and manage dry eye disease more effectively.

Tear osmolarity is a crucial biomarker of ocular surface health. By measuring tear osmolarity, abnormal readings above 300 mOsm/L or a significant inter-eye difference of more than 8 mOsm/L can indicate loss of homeostasis or instability of the tear film. The TearLab Osmolarity Test is performed using the TearLab Osmolarity Test Card and Osmolarity Test Pen.

It utilizes temperature-corrected impedance measurement to calculate and display osmolarity as a quantitative numerical value. This test is more precise than other widely accepted point-of-care tests like cholesterol and glucose. With a positive predictive value of 89%, TearLab is a reliable and accurate diagnostic test for dry eye disease.

For more information and training videos on how to perform the TearLab Osmolarity Test, please visit their website