Cat Parasites and Diseases

Cat with blue eyes resting.

Yeast Infections

Malassezia pachydermatis is the yeast organism most commonly involved in otitis externa. This is not surprising, since Malassezia is normally found within the ear canals of healthy cats, causing no problems whatsoever. However, if inflammation strikes for whatever reason, the yeast takes advantage of a good situation and begins to proliferate. When this growth reaches …

Yeast Infections Read More »

Cat playing with a huge mouse toy house.


An opacity involving the lens of the eye that prevents light from reaching the retina is termed a cataract. Cataracts can be inherited (juvenile cataracts) or might develop secondary to eye trauma, infections, or metabolic disease, such as diabetes mellitus. As lens opacity increases, the amount of light allowed to reach the retina is diminished, …

Cataracts Read More »

Cat sitting in the snow.

Cat Glaucoma

Glaucoma is a condition characterized by an increase in fluid pressure from the aqueous humor within the eye(s). In the normal eye, pressure and aqueous levels are maintained at a constant plateau by the continual drainage of excess aqueous humor out of the eye through tiny ports (drainage angles) located where the edge of the …

Cat Glaucoma Read More »

Cat’s Corneal Ulcers

The transparent cornea enclosing the front portion of the eye is a remarkable organ in itself. Responsible for gathering light and directing it into the eye, healthy corneas are essential for proper vision. It stands to reason, then, that ulcerations (loss of surface epithelium) or scratches involving one or more corneal surfaces can seriously threaten …

Cat’s Corneal Ulcers Read More »