Ruminant Ocular and Dermatological Diseases

Question 1

IBK

Answer 1

Infectious Bovine Keratoconjunctivitis
* pink eye
* common in calves
* most common ocular disease in cattle
* Hereford breed commonly affected
* may affect 1 or both eyes

Question 2

Pink Eye in Cattle
Causes

Answer 2

• Caused by bacteria Moraxella bovis
• UV rays damage cornea

Question 3

Pink Eye in Goats / Sheep
Etiology

Answer 3

• Goat: Mycoplasma conjunctivae
• Sheep: Chlamydia psittaci

Question 4

Papillomas

Answer 4

• Warts
• Self-limiting
• May regress within 3-12 months

Question 5

Cancer Eye

Answer 5

Squamous Cell Carcinoma
* most common tumor in cattle
* most economically important neoplasia in large animal

Question 6

Exophthalmos

Answer 6

Progressive bulging of 1 or both eyes
* lymphosarcoma - tumor behind eye
* dairy cattle commonly affected