Dictionary

oral-motor Relating to the muscles of the mouth and/or to movements of the mouth.

oral-motor apraxia of speech See apraxia of speech.

orbit In medicine, the bony cavity in which the eyeball sits.

operation In medicine, a surgical procedure. Many operations are named after persons. They range from A to Z, from the Abbe operation (on the lip) to the Ziegler operation (on the eye).

operation, Blalock-Taussig See Blalock-Taussig operation.

operation, Macewen See Macewen operation.

ophthalmia Severe inflammation of the eye. Also known as ophthalmitis.

ophthalmia, sympathetic See sympathetic ophthalmia.

ophthalmic Pertaining to the eye. For example, an ophthalmic ointment is designed for the eye.

ophthalmic artery The artery that supplies blood to the eye and adjacent structures of the face. It arises from the internal carotid artery, which courses up from deep within the front of the neck. See also artery.

ophthalmic vein One of the paired veins that drain the orbital cavity that contains the eye. The superior ophthalmic vein arises at the inner angle of the orbit and follows the course of the ophthalmic artery into the cavernous sinus, a large channel of venous blood. The inferior ophthalmic vein arises from a venous network…

ophthalmitis See ophthalmia.