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Updated on September 23rd, 2025
Pet's info: Dog | Great Pyrenees | Male | neutered | 75 lbs
My dog has a green, dry eye mucus stuck to the corner of his eye. It doesn't look actively mucusy, but i know i saw a little mucus that i wiped away last week in the same eye. What could this be? He was prescribed neomycin polymyxin b sulfates and dexamethasone ophthalmic ointment a few months ago. Can i use this on his eye to help? Should i clean out the eye with saline? Thank you
2 Answers

Answered By Dr. Melanie, BVSc MS
Veterinarian
Published on January 13th, 2017
Answered By Jennifer Ladd, DVM
Veterinarian
It would be important to have his eye examined prior to using that ointment. The product you have contains a steroid which is great for cases of conjunctivitis and inflammation but is contraindicated with a corneal ulcer. It is likely NOT a corneal ulcer but a steroid can make an ulcer penetrate full thickness in the cornea if used.
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