Diagnostic and Therapeutic Procedures
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| audiometry | Measurement of hearing acuity at various sound wave frequencies
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| 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
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| electronystagmography (ENG) | Method of assessing and recording eye movements by measuring the electrical activity of the extraocular muscles
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| ophthalmodynamometry | Measurement of the blood pressure of the retinal vessels
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| tonometry | Evaluation of intraocular pressure by measuring the resistance of the eyeball to indentation by an applied force
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| 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
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| 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
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| 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
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| otoscopy | Visual examination of the external auditory canal and the tympanic membrane using an otoscope
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| pneumatic | Procedure that assesses the ability of the tympanic membrane to move in response to a change in air pressure
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| retinoscopy | Evaluation of refractive errors of the eye by projecting a light into the eyes and determining the movement of reflected light rays
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| dacryocystography | Radiographic imaging procedures of the nasolacrimal (tear) glands and ducts
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| 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.
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| orthoptic training | Exercises intended to improve eye movements or visual tracking that use training glasses, prism glasses, or tinted or colored lenses
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| 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
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| cochlear implant | Artificial hearing device that produces useful hearing sensations by electrically stimulating nerves inside the inner ear; also called bionic ear
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| cyclodialysis | Formation of an opening between the anterior chamber and the suprachoroidal space for the draining of aqueous humor in glaucoma
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| enucleation | Removal of the eyeball from the orbit
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| evisceration | Removal of the contents of the eye while leaving the sclera and cornea intact
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| mastoid antrotomy | Surgical opening of a cavity within the mastoid process
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| otoplasty | Corrective surgery for a deformed or excessively large or small pinna
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| phacoemulsification | Method of treating cataracts by using ultrasonic waves to disintegrate a cloudy lens, which is then aspirated and removed
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| radial keratotomy (RK) | Incision of the cornea for treatment of nearsightedness or astigmatism.
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| sclerostomy | Surgical formation of an opening in the sclera
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| tuning fork test | Method use to evaluate sound conduction using a vibrating tuning fork
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| Rinne | Tuning fork test that evaluates bone conduction (BC) versus air conduction
(AC) of sound
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| Weber | Tuning fork test that evaluates bone conduction of sound in both ears at the same time
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| tympanoplasty | Reconstruction of the eardrum, commonly due to perforation; also called myringoplasty
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