There can be many different things that go on with Shih tzu eyes. If there is a small amount of clear or brown mucoid discharge without any other signs, then it can be "normal" build up that can be keep clean with a warm wash cloth. Saline can also be used to flush around or on the eyes. Do
not use Visine as many dogs can have an allergic reaction to it.
What to watch out for:
1) discharge that is not typical. If there is a sudden increase in the amount of discharge or if the "gunk" is bunching up then a veterinarian exam is recommended. It is important to make sure that there is not an infection, corneal disease, nasolacrimal duct obstruction or KCS (dry eye) condition that is occuring.
2) If the discharge is yellow or green in color. This implies an infection and/or worse.
3) If the pink tissue next to the eye (conjunctiva) or the white part of the eyeball (sclera) is red/inflammed, then a veterinarian exam is indicated.
4) If the eye appears uncomfortable or squinty.
5) If there are any changes to the clear portion of the eye (cornea), then a veterinary exam is indicated.
Hope that helps.
