ABSTRACT
Glaucoma is considered a neurodegenerative disease. Glaucoma results in blindness if it is not controlled and thus must be considered one of the main causes of a potentially treatable blindness. The signs of glaucoma vary between species, degree of elevation of intraocular pressure, cause of the glaucoma, and chronicity. Compared to the dog, the horse and the cat have minimal-to-modest congestion of the episcleral and conjunctival veins with glaucoma. Glaucoma associated with an anteriorly displaced lens typically has a circular area of corneal edema where the lens touches the corneal endothelium. Many of the very congestive cases of glaucoma have high aqueous humor protein content, as well as pigment clumps floating in the anterior chamber. Glaucoma is broadly divided into primary and secondary forms. Primary glaucoma has an implied familial and bilateral tendency. Secondary glaucoma is associated with concurrent or antecedent intraocular disease.
