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Senses system

Audiometry The graphic record drawn from results of hearing tests with audiometer; charts the threshold of hearing at various frequencies against sound intensity in decibels
Electrocochleography A measurement of electrical potentials generated in the inner ear as a result of sound stimulation
Electronystagmography Electrooculography; skin electrodes placed at outer canthi to register horizontal nystagmus, or above and below each eye for vertical nystagmus
Electroretinography A record of the retinal action currents produced in the retina by an adequate light stimulus
Fluorescein An orange-red crystalline powder that yields a bright green fluorescence in solution; a nontoxic, water-soluble indicator used diagnostically to trace water flow and to visualize corneal abrasions or ulcers
Gonioscope A lens designed to study the angle of the anterior chamber of the eye
Ophthalmoscope An instrument for examining the inner eye chambers and the retina
Optometer An instrument for determining the refraction of the eye
Optomyometer An instrument for determining the relative power of the extrinsic muscles of the eye
Otoscope An instrument for examining the drum membrane or auscultating the ear
Slit lamp An instrument consisting of a microscope combined with a rectangular light source that can be narrowed into a narrow beam for examination of anterior segments of the eye
Tonometry Measurement of ocular tension
Tympanogram A visual depiction (e.g. printout) of relative compliance and impedance of the structures of the middle ear in response to pressure changes in the external ear canal
Iridotomy Creating a hole in the iris to prevent or treat angle closure glaucoma
Laser photocoagulation A method by which a beam of electromagnetic energy is direted to desired tissue under visual control; localized coagulation results from absorption of light energy and its conversion to heat or conersion of tissue to plasma (atoms stripped of electrons)
Mastoidectomy Hollowing out of the mastoid process by curretting, gouging, drilling, or otherwise removing the bony partitions forming the mastoid cells
Myringotomy Paracentesis of the tympanic membrane
Optic keratoplasty Transplantation of transparent corneal tissue to replace a leukoma or scar that impairs vision
Phacoemulsification A method of emulsifying and aspirating a cataract with a low-frequency ultrasonic needle
Radial keratotomy A radial incision operation making a partial thickness incision into cornea to flatten it and reduce its refractive power in that meridian
Refractive surgery Surgical procedure to detect an error of refraction and to correct it by means of lenses
Scleroplasty Surgical molding or reshaping of the sclera
Stapedectomy Operation to remove stapes footplate in whole or part with replacement of stapes superstructure (crura) by metal or plastic prosthesis; used for otosclerosis with stapes fixation to overcome conductive hearing loss
Tympanoplasty Operative correction of a damaged middle ear
Vitrectomy Removal of the vitreous by means of an instrument that simultaneously removes vitreous by suction and cutting and replaces it with saline or some other fluid
Created by: pmm