This will check for an underlying condition that can lead to corneal ulcers.
The STT evaluates tear production. "Dry eye" is a condition in dogs that can predispose them to corneal ulcers (imagine your eyes feeling like sandpaper because there aren't enough tears to clear out the everyday debris that lands in the eyes). If the debris isn't cleared out, it can lead to abrasions on the surface of the eye (ie. cornea) and cause ulcers. This test is very simple to perform, but dogs need to sit still for it. For some patients, this can be very challenging. This test is part of every eye work-up to ensure we aren't missing an additional problem..
From Rachel_Muur_DVM 16 days ago