What is the normal range for tear production in a healthy dog?

The normal range for tear production in a healthy dog is indeed around 15 mm in 60 seconds, which aligns with the standard measurements used in veterinary ophthalmology. This assessment is commonly determined using the Schirmer tear test, which gauges the amount of tear film produced by the lacrimal glands over a specified period.

A measurement of 15 mm in 60 seconds indicates sufficient tear production, which is essential for maintaining eye health, lubricating the cornea, providing nutrition, and protecting against infections. In cases where tear production is below this threshold, it could indicate conditions such as dry eye (keratoconjunctivitis sicca), which can lead to ocular discomfort and potential complications if not addressed.