Closely allied to the last, are those cases in which vesicles appear on
the conjunctiva. In exceptional cases these are seen during an epizootic
of foot and mouth disease, while in other instances they are associated
with eczematous eruptions on other parts of the body, particularly in
dogs. In the human subject conjunctival vesicles are often associated
with tuberculosis, but this has not been recorded of animals so far. The
disease usually makes a rapid eruption, with symptoms of extreme
inflammation, and its duration is largely determined by the general
disease.
Beside the local _treatment_ by astringent or antiseptic and sedative
collyria it may be desirable to correct the hepatic, digestive or other
disorder on which the eczema depends, or to improve the general health
by a course of bitters or even of cod liver oil.