What Are the Symptoms of Glaucoma?
Pet glaucoma symptoms: The early signs of pet glaucoma—a dilated pupil, tearing, squinting, redness—are common to both inflammation and increased pressure. It is very easy to confuse inflammation of the eye (uveitis) with glaucoma.
Glaucoma, which causes increased pressure in the eye, will eventually cause the eye to swell. Unfortunately, a bulging or swollen eyeball is a very late sign; that is, your pet's eye won't appear bulging until it has had glaucoma long enough to have serious problems and probable blindness.
There are also several other diseases that can make the eyeball look swollen, such as a tumor or an abscess behind the eye. Your veterinarian will diagnose your pet's problem and recommend treatment.