off
and enter between the eye and the ocular sheath.

_Treatment._--Their removal becomes often a very difficult task, from the
fact that the organ is so extremely sensitive, and the retracting power so
strong as to necessitate casting the animal, or even the administration of
sufficient chloroform to render it completely insensible. The removal,
however, is of paramount importance, and the after treatment depends upon
the extent and location of the injury--cold water compress over the injured
eye, the application of mild astringent and cooling washes, such as acetate
or sulphate of zinc, 5 grains to the ounce of water. When there is extreme
suffering from pain a solution of atropia or morphia, 5 grains to the ounce
of water, may be dropped into the eye, alternating with the cooling wash
several times a day. When abscesses form within the orbit a free opening
must be maintained for the discharge of pus. In deep penetrating wounds of
the eye there is a great tendency to the formation of a fungous growth,
which often necessitates the enucleation of the whole eyeball.

ORBITAL AND PERIORBITAL ABSCESS.

Orbital abscess may form outside the globe and within the orbital sheath,
as the result of a previous wound of the parts or from fracture of the bony
orbit, etc. Periorbital abscess commences outside the ocular sheath,
beneath the periosteal membrane covering the bone, and is usually the
result of a disease or fractured bone which enters into the formation of
the orbital cavity.

_Symptoms._--Orbital abscess is manifested by a pushing forward of the
eyeball (exophthalmos), a swelling of the conjunctiva and eyelids. The
bulging out of the eye is in proportion to the size of the abscess; the
movement of the eye is fixed, due to the painfulness of any voluntary
movement of the eyeball. Periorbital abscess generally pushes the eye to
one side; otherwise the symptoms are similar to the foregoing. The pain
generally is very great; paralysis of the nerve of sight may occur, and
death may be caused by the abscess extending to the brain.

_Treatment._--The treatment for either orbital or periorbital abscess is
the same as that for abscess occurring in any other part of the body--a
free opening for the escape of imprisoned pus. This should be made as soon
as the true nature of the disease is recognized. Afterwards antiseptic
injections may be needed to stimulate healthy granulation and to prevent
septic infection of the ocular