Dry eye disease occurs when your eyes do not produce enough tears or produce poor quality tears. Which is why it’s essential you get your tears analyzed by your eye doctor. Only an eye doctor can properly diagnose your problem and treat it appropriately.

​​​​​​​Your eye doctor will take a sample of tears from each eye and use the TearLab device to measure osmolarity (the saltiness of your tears). As osmolarity in your tears increase ocular surface cells become damaged. It is an objective and quantitative test for diagnosing and managing dry eye disease.