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Chapter 11 Med Terms
Eyes and Ears
| Term | Definition |
|---|---|
| Audiologist | Specializes in the measurement of hearing function. |
| Ophthalmologist | Specializes in diagnosing and treating diseases and disorders of the eye. |
| Optometrist | A physician who specializes in measuring the accuracy of vision to determine whether corrective lenses or eyeglasses are needed. |
| Optic | Pertaining to the eye or sight. |
| Auditory | Pertaining to the sense of hearing. |
| Conjuctiva | The mucous membrane that lines the underside of each eyelid and continue to form a protective covering over the exposed surface of the eyeball. |
| Lacrimation | The normal continuous secretion of tears. |
| Sclera | Also known as the white of the eye. It is the fibrous tissue outer layer of the eye. |
| Pupil | The black circular opening in the center of the iris that permits light to enter the eye. |
| Retina | The sensitive inner nerve layer of the eye located between the posterior chamber and the choroid layer at the back of the eye. |
| Blepharoptosis | The drooping of the upper eyelid. |
| Conjunctivitis | Also known as pinkeye. It is an inflammation of the conjunctiva. |
| Strabismus | Also known as a squint. It is a disorder in which the eyes cannot be directed in a parallel manner toward the same object. |
| Esotropia | Also known as cross-eyes. It is strabismus characterized by an inward deviation of one eye in relation to the other. |
| Myopia | Also known as nearsightedness. It is a defect in which light rays focus in front of the retina. |
| Cerumen | Also known as earwax. It is a sticky yellow-brown substance that has protective functions as it traps small insects, dust, debris, and certain bacteria to prevent them from entering the middle ear. |
| Tympanic membrane | Also known as the eardrum. It is located between the outer and middle ear. |
| Otalgia | Also know as an earache. Pain in the ear. |
| Otitis | Inflammation of the ear. |
| Vertigo | A symptom of several conditions and is described as a sense of whirling, dizziness, and the loss of balance. |
| Tympanoplasty | The surgical correction of a damaged middle ear. |