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.
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Why Seniors Shouldn't Play Around with Their Eyesite
The American Optometric Association has recommendations for how often adults need to get their eyes examined and those recommendations vary according to the level of risk you have for eye disease.
