Herpesvirus and sore eyes

Two cats with sore eyes came to visit this morning. Meeka is a bouncy 8 week old Burmese. Jafar is a more sedate, but no less fun-loving, 7 year old Himalayan.

Meeka came from a breeder last weekend and has just developed a bit of a crusty discharge in the corner of both eyes. When I had a close look his eyes were a bit red and more watery than normal.

Jafar has episodes of red weepy eyes every few months. He is a bit of a stress-head and the episodes seem to correspond with changes in the household like a new house, visitors or an intruder cat in the yard.

They are both showing signs of feline herpesvirus infection. Meeka’s infection may progress to a runny nose and sinusitis or she may throw it off and never have another episode. If she goes off her food or is lethargic we will prescribe antibiotics for secondary infections.

Herpesvirus in Jafar hides in a nerve ganglion and just comes out when he is stressed. The conjunctivitis is a bit painful so we recommend artificial tears to keep the eye well lubricated. He is also taking an antiviral drug to try and reduce the viral load and conjunctivitis.

The other cat in Jafar’s household must have developed an immunity to the virus as she has never shown signs even when Jafar is shedding virus everywhere.

We keep a close watch on Jafar’s eye because herpesvirus can cause ulceration of the cornea, the window of the eye, and occasionally loss of the eye.

Sore eyes

Mus be the season for it - this morning I saw Zoe, a half grown girl with very sore eyes. She's had red and watery eyes on and off since she came home from the cat shelter at 8 weeks of age.
Mostly she's a happy little cat, but today she was very miserable. She  and sneezed a glob of snot right at her nurse! One eye was almost closed with swollen conjunctiva and the other was very mucusy.
Poor Zoe! With her history of intermittent sore eyes and snuffles we suspected feline herpesvirus, probably complicated by a chlamydial or mycoplasma infection.
Most cats are infected with herpesvirus as kittens but only a few have signs later on. Zoe's family moved house a week or so ago and the stress of the change, strange noises and people probably brought this bout on. Any type of stress brings the herpesvirus out of hiding and causes sore eyes and snuffles in cats like Zoe.
Treatment for chlamydia and mycoplasma is reasonably straight forward but herpesvirus is variably sensitive to the antivirals we have available. Hopefully Zoe will respond to the Famciclovir we have prescribed.
Her family will have to nurse her through the worst of it. They will gently clean her eyes and nose with salty water on cotton balls and take her into the bathroom with them when they shower to loosen up the nasal and sinus congestion. Strong smelling foods like canned fish will stimulate her appetite and help get her back on her food.