The TearLab takes a sample from each eye and measures the osmolarity of your tears. If your tears have a high osmolarity, or salt content, it means that they are not properly lubricating your eyes. As the osmolarity in your tears increases the more they damage your ocular surface.

Latest News
Having Vision Issues After a Concussion or TBI?
The Centers for Disease Control estimates that around 2.8 million people in the United States suffer from a traumatic brain injury (TBI) every year, and vision can be affected. Concussions are a type of TBI.
The rate of childhoo...