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Bonewit Chapt 6
Eyes and Ear (Kali Dansingburg)
| Term | Definition |
|---|---|
| Astigmatism | A refractive error that causes distorted and blurred vision for both near and far objects due to a cornea that is oval shaped. |
| Audiometer | An instrument used to measure hearing acuity quantitatively for the various frequencies of sound waves. |
| Canthus | The junction of the eyelids at either corner of the eye. |
| Cerumen | Earwax. |
| Hyperopia | Farsightedness. |
| Impacted | Wedged firmly together so as to be immovable. |
| Instillation | The dropping of a liquid into a body cavity. |
| Irrigation | The washing of a body canal with a flowing solution. |
| Myopia | Nearsightedness. |
| Otoscope | An instrument used to examine the external ear canal and tympanic membrane. |
| Presbyopia | A decrease in the elasticity of the lens that occurs with aging, resulting in a decreased ability to focus on close objects. |
| Refraction | The deflection or bending of light rays by a lens. |
| Tympanic membrane | A thin, semitransparent membrane between the external ear canal and the middle ear that receives and transmits sound waves. Also known as the eardrum. |