The TearLab Osmolarity System* is intended to measure the osmolarity (the saltiness of your tears) of tears to help in the diagnosis of dry eye disease.
How Does TearLab Work?
The TearLab provides a quick method for determining tear osmolarity using your own tear fluid collected directly from your eyelid.
During the Test:
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. Your doctor will need an amount of tear fluid no larger than the period at the end of this sentence.