Definition that contains eyeball
- orbit the bony cavity in the skull containing the eyeball
- retina the innermost light-sensitive membrane covering the back wall of the eyeball; it is continuous with the optic nerve
- sclera the whitish fibrous membrane (albuginea) that with the cornea forms the outer covering and protection of the eyeball
- papilledema swelling of the optic disc (where the optic nerve enters the eyeball); usually associated with an increase in intraocular pressure
- nystagmus involuntary movements of the eyeballs; its presence or absence is used to diagnose a variety of neurological and visual disorders
- eyebath a small vessel with a rim curved to fit the orbit of the eye; use to apply medicated or cleansing solution to the eyeball
- lachrymal secretion saline fluid secreted by lacrimal glands; lubricates the surface of the eyeball
- superior rectus the ocular muscle whose contraction turns the eyeball upward and medially
- orbital cavity the bony cavity in the skull containing the eyeball
- eye muscle one of the small muscles of the eye that serve to rotate the eyeball