We are now pleased to have the Tear Lab Osmolarity test at
the Dry Eye Centre. This is a useful tool in our diagnostic armoury. The test measures the osmolarity of the
tears. Osmolarity is a measurement of the number of solid particles in a
solution. Increased osmolarity means an increased number of particles. When
measuring tears this means that an increase osmolarity or hyperosmolarity
means there is an increase in the
saltiness of the tears compared to normal tears.
Hyperosmolarity is now included in the definition of dry
eye. So an elevated level is 90% predictive that the patient has Dry Eye.
The Tear Lab test is easy to perfom and allows us to
determine whether or not you have dry eye. In addition it also gives an
indication of the severity.
If you want this test included in your examination, please
ask at your appointment.
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