Farm Animals

Sheep Contagious Ophthalmia Pink Eye Welfare

Contagious ovine ophthalmia (pink eye) caused by Moraxella ovis causes painful conjunctivitis and corneal ulceration in sheep, with prompt treatment preventing permanent blindness.

Key Facts

Contagious ovine ophthalmia spreads rapidly through flocks by flies and direct contact
Affected eyes show excessive tearing, closed eyes, and corneal opacity in severe cases
Topical oxytetracycline spray or injectable oxytetracycline treats most cases effectively
Blindness can result without prompt treatment as corneal ulceration progresses
The condition is most common in summer when fly activity is highest

Welfare Considerations

Pink eye causes significant ocular pain and potential permanent blindness. Prompt identification and treatment prevents progression to permanent welfare impairment.

What You Can Do

Check sheep eyes daily during summer for signs of weeping or cloudiness
Treat affected animals promptly with appropriate antibiotics under veterinary guidance
Control flies on farm to reduce spread between animals
Isolate severely affected animals from the flock during treatment