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MED143 PHARMACOLOGY
MED143 CH 08 KEY TERMS
| Term | Definition |
|---|---|
| MED143 PHARMACOLOGY CH 8 KEY TERMS | |
| acoustic | pertaining to hearing or sound |
| air conduction | function of the middle and external ear that conducts and amplifies sound waves from the environment |
| blepharitis | bacterial infection of the eyelid that causes crusting, redness, and irritation |
| canthus | angle at either end of the slit between the eyelids |
| cataract | an opacity that appears in the crystalline lens |
| central hearing loss | difficulty understanding the meaning of words heard; inability to understand the meaning of incoming sounds or words; caused by problems of the central nervous system from the auditory nucleus to the cortex |
| cerumen | earwax |
| conductive hearing loss | alteration in the perception of or sensitivity to sounds; occurs with problems in the external and middle ear |
| conjunctivitis | an inflammation of the mucous membrane that lines the back of the eyelids and the front of the eye except the cornea |
| diplopia | double vision |
| external otitis | an inflammation and infection of the epithelium of the auricle and ear canal |
| floaters | nontransparent specks that are small pieces of cells floating across the visual field |
| glaucoma | condition characterized by increased pressure within the eye caused by failure of the aqueous humor to drain |
| hordeolum | a hard cyst on the eyelid resulting from a blocked sebaceous duct; also known as a sty |
| miotics | drugs that cause the pupil to constrict by decreasing the intraocular pressure, increasing the aqueous humor outflow, and contracting the ciliary muscle |
| mydriatics | drugs used to dilate the pupil |
| optic | pertaining to the eyes or sight |
| otalgia | ear pain |
| otic | pertaining to the ear |
| photophobia | abnormal intolerance to light |
| presbycusis | decreased ability to hear high-pitched sounds |
| presbyopia | farsightedness brought about by decreased accommodation of the eye as a result of the aging process |
| sensorineural hearing loss | alteration in the perception of or sensitivity to high-pitched sounds; occurs with problems in the inner ear |
| tinnitus | ringing in the ears |
| vertigo | dizziness; a whirling feeling in the head |
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