All forms of Glaucoma result from inadequate drainage of a fluid inside of a pet's eye called Aqueous Humor. (bensalemveterinaryhospital.com)
It results from overproduction of viscous mucus, and lack of aeration in the middle ear from inadequate drainage through the Eustachian tube. (dogbreedhealth.com)
A fluorescein dye is needed to diagnose an ulcer to the cornea or inadequate drainage through the nasolacrimal duct due to a blockage. (norwalkanimalhospital.com)