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