![]() Learning more about the tear film can make this relationship clear. You’re probably wondering about the exact nature of the relationship between hyperosmolarity, homeostasis, and dry eye disease. This disruption of homeostasis is another characteristic of dry eye disease. An inter-eye difference of more than 8 milliosmoles per litreĮither of these readings can indicate a lack of homeostasis (or stability) in the components of the eye’s tear film.A measurement of more than 300 milliosmoles per litre.Tear osmolarity is abnormal when it meets one of the following conditions: What is Considered Abnormal for Tear Osmolarity? We’ll explain why in a moment-but for now, you just need to know that hyperosmolarity is a common warning sign for dry eye disease. Hyperosmolarity can signify problems with tear flow or indicate that tears are evaporating too quickly. When your tears have too much salt in them, it’s called hyperosmolarity. Normal osmolarity is essential for proper tear production, retention, distribution, and elimination. ![]() Put simply, tear osmolarity is a measurement used to determine how much salt is in your tears. Inform yourself about tear osmolarity below, and find out precisely what it can tell us about your eyes! What is Tear Osmolarity? The eye care practitioners in our network have measured tear osmolarity in patients for many years, so we’re happy to explain it to you. Testing tear osmolarity is a reliable way to help diagnose dry eye disease, so it’s useful to understand it in more detail. Tear osmolarity is a term you may have overheard during one of your regular visits to the optometrist. ![]()
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