If you are a cat owner, you have likely dealt with the occasional "eye booger" or crusty residue in the corners of your pet’s eyes. While some discharge is normal, excessive tearing, staining, or constant wetness around the eyes often signals a common issue: a clogged tear duct.

If your cat's eyes are constantly "running," they may have a drainage issue. Common signs include:

The vet called it epiphora . Too fancy. Miso just looked perpetually moved, as if she’d finished a sad book hours ago and couldn’t quite shake the final page. A brownish trickle stained her white bib fur, then dried into a little comma under her eye.