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Accommodation
the act of adjusting something to make it fit the needs; in the case of the eyes, the lens adjusts itself
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Acute otitis media
presence of pus in the middle ear with pain in the ear, fever, and redness of the tympanic membrane
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Ampulla
dilated portion of a canal or duct
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Audiometer
instrument to measure hearing
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BPPV
Benign paroxysmal positional vertigo
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Canthus
corner of the eye where the upper and lower lids meet
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Cataract
complete or partial opacity of the lens
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Color blind
hereditary lack of response by one or more of the three types of cones
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Dacryostenosis
narrowing of the nasolacrimal duct
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Effusion
collection of fluid that has escaped from blood vessels into a cavity or tissues
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Equilibrium
being evenly balanced
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Glaucoma
increased intraocular pressure
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Keratotomy
incision in the cornea
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Labyrinthitis
inflammation of the inner ear
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Lymphoid tissue
resembling lymphatic tissue
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Mastoid
small bony protrusion immediately behind the ear
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Myringotomy
incision in the tympanic membrane
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Nasolacrimal duct
passage from the lacrimal sac to the nose
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Ocular
pertaining to the eye
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Ossicles
small bone, particularly relating to the three bones in the middle ear
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Otomycoses
fungal infection of the external ear
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Paroxymal
occuring in sharp, spasmodic episodes
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Perforated tympanic membrane
can occur in AOM when pus in the middle ear cannot escape down the eustachian tube. It builds up pressure and perforates the eardrum
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PERRLA
pupils equal, round, reactive to light and accomodation
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Photophobia
fear of the light because it hurts the eyes
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Photoreceptors
a photoreceptor cell receives light and converts it into electrical impulses
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Rinne test
test for conductive hearing loss
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Scleritis
inflammation of the sclera
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Sensorineural hearing loss
hearing loss caused by lesions of the inner ear of the auditory nerve
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Snellen chart
test for acuity of distant vision
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Stapes
inner (medial) one of the three ossicles of the middle ear; shaped like a stirrup
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Swimmer's ear
a form of otitis externa that comes on after swimming, particularly if the water is polluted
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Tinnitus
persistent ringing, whistling, clicking, or booming noise in the ears
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Tonometer
instrument for determining intraocular pressure
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Vertigo
sensation of spinning or whirling
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Vestibule
space at the entrance to a canal
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Weber test
test for sensorineural hearing loss
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Whispered speech test
ask patient to cover one ear, stand 2 ft away from uncovered ear, whisper words, ask patient to repeat them
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