Ocular FIP with uveitis in cats: how to treat it
10-month-old Birman with confirmed non-effusive FIP. He has bilateral anterior uveitis with aqueous flare, keratic precipitates and miosis; intraocular pressure is normal and there are no neurological signs.
What is the most appropriate treatment plan?
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A. Systemic antiviral at the dose indicated for ocular involvement, plus topical corticosteroid and mydriatic to control the uveitis, monitoring intraocular pressure
Correct. The uveitis is a manifestation of systemic disease and is only controlled by treating the virus; the blood–ocular barrier requires higher doses. Topical treatment reduces inflammation and prevents sequelae such as synechiae or glaucoma.
B. Topical corticosteroid only, because antivirals do not reach the eye
Antivirals do reach the eye, although at lower concentrations (hence the higher dose). Treating only the eye lets systemic FIP progress, which is fatal without an antiviral.
C. Antiviral at the standard effusive-form dose, without ocular treatment
With ocular involvement, the standard dose may be insufficient and favour relapse. Without local anti-inflammatory control, the risk of synechiae, cataract or secondary glaucoma also rises.
D. Bilateral enucleation to remove the source of infection
The eyes are not the source but a manifestation of systemic disease. FIP uveitis usually improves with antiviral treatment, and many cats retain vision.
lightbulb Key takeaway
Examine the fundus in every cat with suspected FIP: chorioretinitis and perivascular cuffing support the diagnosis and call for a higher dose. Recheck the eyes and intraocular pressure at every visit, as ocular or neurological relapses are common.
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Updated: October 31, 2026 · Educational content for veterinary professionals. It does not replace current clinical guidelines or the judgement of the attending veterinarian.