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a collection of pus often located between the orbital periosteum and the lamina papyracea; frequently an extension of purulent infection of the paranasal sinuses, usually the ethmoids.
An abscess in the orbit of the eye.
See also: abscess
pertaining to the eye socket.
may be associated with orbital cellulitis. Can be caused by foreign bodies, wounds, tooth infection, or fractures. Clinical signs include protrusion of the globe, pain on opening of the mouth, and often edema of the eyelids.
the external and internal ophthalmic arteries.
see harderian gland.
the ratio of the height of the orbit to the width.
the fibrous band which completes the lateral margin of the orbit in the cat, dog and other species which do not have a post-orbital bar; reaches from the frontal process of the zygomatic bone to the zygomatic process of the frontal bone.
in dogs sarcoma and carcinoma common, multilobular osteoma occurs; in other species tumors uncommon except for metastatic lymphoma and cancer eye in cattle and to a lesser extent in horses.
orbital sinus bleeding
often the method of bleeding small rodents; the anesthetized rat or mouse is bled via a microhematocrit tube or pipette inserted through the medial canthus of the eye.