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Chapter 15 Terms
Diagnostic and Therapeutic Procedures
| Term | Definition |
|---|---|
| audiometry | Measurement of hearing acuity at various sound wave frequencies |
| caloric stimulation test | Test that uses different water temperatures to assess the vestibular portion of the nerve of the inner ear (acoustic nerve) to determine if nerve damage is the cause of vertigo |
| electronystagmography (ENG) | Method of assessing and recording eye movements by measuring the electrical activity of the extraocular muscles |
| ophthalmodynamometry | Measurement of the blood pressure of the retinal vessels |
| tonometry | Evaluation of intraocular pressure by measuring the resistance of the eyeball to indentation by an applied force |
| visual acuity (VA) test | Part of an eye examination that determines the smallest letters that can be read on a standardized chart at a distance of 20 feet |
| gonioscopy goni/o: angle | Examination of the angle of the anterior chamber of the eye to determine ocular motility and rotation and diagnose and manage glaucoma |
| ophthalmoscopy | Visual examination of the interior of the eye using a hand-held instrument called an ophthalmoscope, which has various adjustable lenses for magnification and a light source to illuminate the interior of the eye |
| otoscopy | Visual examination of the external auditory canal and the tympanic membrane using an otoscope |
| pneumatic | Procedure that assesses the ability of the tympanic membrane to move in response to a change in air pressure |
| retinoscopy | Evaluation of refractive errors of the eye by projecting a light into the eyes and determining the movement of reflected light rays |
| dacryocystography | Radiographic imaging procedures of the nasolacrimal (tear) glands and ducts |
| fluorescein angiography | Assesses blood vessels and their leakage in and beneath the retina after injection of fluorescein dye. The dye circulates while photographs of the vessels within the eye are obtained. |
| orthoptic training | Exercises intended to improve eye movements or visual tracking that use training glasses, prism glasses, or tinted or colored lenses |
| blepharoplasty | Cosmetic surgery that removes fatty tissue above and below the eyes that commonly form as a result of the aging process or excessive exposure to the sun |
| cochlear implant | Artificial hearing device that produces useful hearing sensations by electrically stimulating nerves inside the inner ear; also called bionic ear |
| cyclodialysis | Formation of an opening between the anterior chamber and the suprachoroidal space for the draining of aqueous humor in glaucoma |
| enucleation | Removal of the eyeball from the orbit |
| evisceration | Removal of the contents of the eye while leaving the sclera and cornea intact |
| mastoid antrotomy | Surgical opening of a cavity within the mastoid process |
| otoplasty | Corrective surgery for a deformed or excessively large or small pinna |
| phacoemulsification | Method of treating cataracts by using ultrasonic waves to disintegrate a cloudy lens, which is then aspirated and removed |
| radial keratotomy (RK) | Incision of the cornea for treatment of nearsightedness or astigmatism. |
| sclerostomy | Surgical formation of an opening in the sclera |
| tuning fork test | Method use to evaluate sound conduction using a vibrating tuning fork |
| Rinne | Tuning fork test that evaluates bone conduction (BC) versus air conduction (AC) of sound |
| Weber | Tuning fork test that evaluates bone conduction of sound in both ears at the same time |
| tympanoplasty | Reconstruction of the eardrum, commonly due to perforation; also called myringoplasty |
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