Keratitis is an inflammatory corneal disease characterised as either ulcerative and nonulcerative in type. Both types are relatively common in cats. In the cat, both superficial and and deep vessels may only be apparent once they are within the cornea. and careful observation is necessary to determine the level of vascularisation.
Chemosis (swelling or oedema of the eyelids) is often dramatic because of the loose nature of the feline conjunctiva. Corneal pigmentation as a response to insult is rare incats, except for changes in limbal pigment which are sometimes a feature of perinatal problems and eosinophilic keratitis due to feline herpes viral infection.
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- Barnett, KC & Crispin, SM (2002) Feline Ophthalmology: An atlas & text. Saunders, USA