A challenging case: Painful periocular swelling in a cat
An ophthalmic examination provides valuable clues for diagnosing an uncommon disorder with mostly nonspecific signs.
Apr 01, 2013
A 4-year-old 10.1-lb (4.6-kg) spayed female domestic shorthaired cat was presented to the Louisiana State University School of Veterinary Medicine Veterinary Teaching Hospital for evaluation of painful periocular swelling of both eyes of about one month's duration.
On physical examination, the cat's temperature, pulse, respiratory rate, and body condition score were normal.
No active ocular motility could be elicited from the globe, and lateral strabismus was noted. There was a marked amount of conjunctival thickening and hyperemia of the left eye. Moderate conjunctival hyperemia and chemosis were noted in the right eye. Intraocular pressures measured by applanation tonometry (Tono-Pen XL—Reichert Technologies) were 19 mm Hg for the right eye and 35 mm Hg for the left eye. Pupillary light reflexes were slow and incomplete in the left eye and were normal in the right eye.
On slit-lamp examination, diffuse corneal edema and keratic precipitates were noted in both eyes. Additionally, marked aqueous flare was noted bilaterally along with pars planitis in the right eye and rubeosis iridis and posterior synechia in both eyes. Pigment deposition and inflammatory changes affecting the anterior lens capsule were noted bilaterally. An inferior bullous retinal detachment was noted in the right eye. Fundic examination of the left eye was limited because of the anterior segment changes.