Rabbit and Farm Animal Opthalmology

Question 1

What is dacryocystitis?

Answer 1

Inflammation/infection of lacrimal sac

Question 2

List four treatment options for dacrocystitis

Answer 2

Topical antibiotics
Systemic antibiotic
Oral NSAID
Nasolacrimal flushing

Question 3

How does encephalitazoon cuniculi cause phacoclastic uveitis?

Answer 3

Cataract > lens capsule > phacoclastic uveitis +/-> glaucoma

Question 4

List three forms of treatment of encephalitazoon cuniculi and phacoclastic uveitis.

Answer 4

Phacoemulsification
Anti-inflammatory treatment
Fenbendazole

Question 5

List three differentials for uveitis in rabbits

Answer 5

Encephalitazoon cuniculi
Systemic pasteurellosis
Staphylococcal uveitis

Question 6

Which clinical signs of eye disease may myxomatosis cause?

Answer 6

Purulent conjunctivitis and blepharitis
Myxoma formation on eyelids

Question 7

List two causes of exopthalmos in rabbits

Answer 7

Retrobulbar abscessation
Mediastinal mass (thymoma)

Question 8

How may a mediastinal mass (thymoma) cause exopthalmos in rabbits?

Answer 8

Jugular pressure
Reduced drainage
Increased orbital venous sinus pressure
Pulsatile exopthalmos (usually bilateral)

Question 9

What is chromodacryorrhoea?

Answer 9

‘Bleeding eyes’ - overproduced porphyrin and lipid in tears

Question 10

List two causes of ulcerative keratitis in rodents

Answer 10

Trauma and foreign body

Question 11

What are diabetic cataracts in rodents secondary to?

Answer 11

Secondary to retinal degenerations

Question 12

What clinical signs does heterotopic bone formation cause in guinea pigs?

Answer 12

‘Scalloped ring’ calcification in anterior uvea (iris into ciliary body)

Question 13

What is the scientific name of ‘New Forest Eye’?

Answer 13

Infectious bovine keratoconjunctivitis