Answer

Hello,

I'm sorry to hear about your pug.

This is likely an ulcer forming in the eye, not an uncommon finding in pugs. At 3 years of age, it is less likely a cataract. Your vet will want to do a few tests to see how best to treat this: they will make sure the pressure in the eye is normal, that your pug can produce sufficient amount of tears to keep the eye lubricated, and will stain the eye to make sure that no scratch is present.

Because there is a chance this is indeed an ulcer, which leaves the eye open up to possible infection, until you get to your vet appointment tomorrow, I would rinse the eye out with sterile saline, like that found in regular contact lens solution (not the ones with additives and disinfectants, just sterile NaCl solution). Rinse well without the container tip touching the eye, and you can wipe away the excess moisture from the face (not the eye) with a soft washcloth or cotton ball. Rinse 2-3 times today and when you get up tomorrow morning before your appointment.

These can become uncomfortable quickly, so indeed that appointment is necessary tomorrow.

Best of luck,

Christine