The Tests for Dry Eyes

In most cases, your ophthalmologist should be able to diagnose Dry Eye Syndrome from your symptoms. However, there are additional tests that can be used to confirm this diagnosis.

The thickness and the stability of the tear film can be examined using a Slit Lamp. At the same time, the cornea can be checked to ensure that it has not been damaged.

Yellow (Fluorescein) and red (Rose Bengal) dyes can be used to stain the cornea. The former stains the cornea where the skin cells have been worn away due to a lack of protection from the tear film. The latter stains the conjunctiva where the cells have died for the same reason.

A thin strip of paper can be placed under the eyelid to test the amount of tears produced. This is known as the Schirmer Test.

Blood tests may also be performed if there is the suspicion of underlying autoimmune disease. Occasionally, a biopsy of the salivary glands may be required; they are related to the tear glands.

The Prevention of Dry Eyes »