16 - ophthalmic disease

Question 1

(ocular squamous cell carcinoma - cancer eye)

1. most common tumor in cattle
2. common in light pigmented

Question 2

(infectious bovine keratoconjuctivitis - pink eye)

1. most commonly caused by what?
2. spread by what?
3. worse in light pigment
4. Cx: blepharo spasm, epiphora, photophobia

progresses to -> chemosis, corneal edema, corneal ulceration, and blindness

5. tx?
6. prevention: fly control, insecticides, weed control

Answer 2

1. moraxella bovis (also mycoplasma and EHV-1)
2. face flies
3. abx, local steroids,