Thelaziasis (Eye Worm Disease)

It is an eye infection. All mammalian are susceptible. It is a thin worm up to 2 cm long.

Clinical Signs:

• Lacrimation starts in animal

• Photophobia

• Conjuctivitis

• Keratitis

• Corneal ulceration

• Abscess formation on eyelids.

It is indirect transmission by fly. Intermediate host is face fly (Musca autumnalis). It mostly occurs in summer and autumn when flies are more active. Flies lay eggs on conjuctiva while feeding from eyes. Larva feed on secretions of eye. Adult worm is found in conjuctiva. First stage larva is found in eye washing.

Treatment:
Ivermectin 

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