What is the normal amount of expected moisture on a Schirmer's tear test paper testing strip?

The normal amount of expected moisture on a Schirmer's tear test paper testing strip is 18-25 mm after 5 minutes of testing. This measurement reflects a healthy tear production level in dogs and cats. The Schirmer tear test is used to assess the quantity of tears produced by the eye's lacrimal glands. Adequate tear production is crucial for maintaining corneal health and ocular comfort, as tears help to wash away debris, provide nutrients, and keep the ocular surface moist.

In a clinical setting, values below the normal range may suggest insufficient tear production, which could indicate conditions such as keratoconjunctivitis sicca (dry eye). Observing these normal values helps veterinary professionals diagnose and manage potential eye disorders effectively.