The Sensory System
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| auditory ossicles | 3 bones in middle ear anchor eardrum to tympanic cavity and transmit vibrabrations to inner ear
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| auricle/pinna | funnel like structure leading from external ear to external auditory meatus
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| choroid | thin posterior membrane in middle layer of eye
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| ciliary body | thick anterior membrane in middle layer of eye
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| cochlea | snail shaped structure in inner ear contains organ of corti
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| cones | specialize receptor cells in retina that perceive color and bright light
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| conjunctive | muscous membrane lining the eyelid
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| cornea | transparent anterior section of eyeball that bends light in process called refraction
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| decibel | measure of intensity of sound
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| ear | organ of hearing
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| eardrum | oval, semi transparent membrane moves in response to sound waves and produces vibration
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| endolymph | fluid inside the membranous labyrinth
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| equilibrium | sense of balance
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| eustacian tube | tube that conncts the middle ear to pharynx
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| eye | orgn of sight
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| eyebrow | clump of hair above eye to keep foreign particles from entering the eye
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| eyelashes | group of hairs on end of eyelid to keep foreign particles from entering the eye
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| fovea centralis | epression in center of macula luta; percieves sharpest image
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| eyelid | moveable covering over the ey
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| hearing | ability to percieve sound
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| incus | one of 3 auditory ossicles; the anvil
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| iris | colored part of eye; contains muscle sthat expand and contract in response to light
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| lacrimal glans | glands that secrete liquid to moisten the eyes and produce tears
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| lens | colorless flexible transparent body behind the iris
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| macula | inner ear structure containing hairlike sensors that move to maintain equilibrium
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| macula lutea | small yellowish area located in center of retina which has depression
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| malleus | one of 3 autitory ossicles; the hammer
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| membranous labyrinth | 1/2 tubes that make up semicircular canls
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| neuroretina | thick layer of nervous tissue in retina
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| olfactory organs | organs at top of nasal vaity containing olfactory receptors
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| optic nerve | nerve that transmits nerve impulses from eye to brain
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| organ of corti | structure on basiliar membrane with hairlike receptors that reveive and transmit sounds waves
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| osseus labrinth | 1/2 tubes that make up semicircular canals
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| otoliths | small calcifications in inner ear that help maintain balance
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| papillae | taste buds
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| perilymph | liquid secred by walls of oseus labyrinth
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| pupil | black center of eye; opens and closes in respsonse to light because of iris
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| refraction | process of bending light rays
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| reinta | oval light sensitive membrane in intertior layer of eye; decodes light waves and transmits information to brain
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| rods | specialized receptor cells in retina that perceive black to white shades
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| clera | thick tough membrane in outer eye layer; supports eyeball structure
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| semicircular canals | structures in inner ear important for balance
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| sensory receptors | specialized tisse containing cells that can receive stimuli
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| sensory system | organs that perceive and receive stimuli from ouside or within body
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| sight | ability to see
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| smell | ability to perceive odors
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| stapes | 1/3 auditory ossicles; stirrup
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| taste | ability to perveice the QULAITIES OF INGEST MATTER
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| taste budsuL | organs that sense taste of food
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| taste cells | specializze receptor cells within taste buds
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| tears | moisture secreted from lacrimal glands
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| touh | ability to perceive sensation on skin
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| tympanic membrane | eardrum
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| uvea | region of eye containing the iris choroid membran and ciliary bodies
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| vestibule | bon chamber between semicircular canla and cochlea
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| audio; audito | hearing
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| auro auriculo | hearing
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| blepharo | eyelid
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| cerumino | wax
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| cochleo | cochlea
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| conjuntivo | conjunctiva
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| coro coreo | pupil
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| corneo | cornea
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| cyclo | ciliary body
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| dacryo | tears
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| iro irdio | iris
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| kerato | cornea
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| lacrimo | tears
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| mastoid | mastoid process
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| mmyringo | eardrum; middle ear
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| naso | nose
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| oculo | eye
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| ophthalmo | eye
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| opto optico | eye
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| ossiculo | ossicle
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| phaco phako | lens
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| pupillo | pupil
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| retino | retina
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| sclero | white of eye
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| scoto | darkness
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| tympano | eardrum ; middle ear
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| uveo | uvea
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| acc | accomodation
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| ad | right ear
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| armd | age related macular degeneration
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| as | left ear
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| au | both ears
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| ent | ear nose throat
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| icce | intracapsular cataract cyroextraction
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| iol | intraocular lens
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| iop | intraocular pressure
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| nva | near visual acuity
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| d | diopter
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| dB | decibel
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| dva | distance visual acuity
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| ecce | extracapsular cataract extraction
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| eent | eye ear nose throat
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| ou | each eye
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| perrl perrla | pupils equal round reactive to light; accomoodation
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| pe tube | polyethylene ventilating tube; in eardrum
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| som | serous otitis media
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| va | visual acuity
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| od | right eye
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| om | otitis media
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| os | left eye
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| vf | visual field
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| + | plus; convex
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| - | minus; concave
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| audiogram | graph that plots te acoustic frequencies being tested
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| audiologist | specialist evaluating hearing ufunction
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| audiometru | measurement of acoustic frequencies using an audiometer
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| diopter | unit of refracting power of lens
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| ophthalmologist | medical specialist ho diagnoses and treats eye disorders
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| optician | technicial who makes and fits corrective lenses
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| optometrist | nonmedical specialist who examines the eyes and prescribes lenses
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| otologist | medical specilist in ear disorders
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| otorhinolaryngologist | medical specialist who treats ear nose and throat disorders
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| otoscopy | inspection of ear using otoscope
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| tonometry | measurement of tension or pressure within eye
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| aerotitis media | inflammation of middle ear caused by air pressure changes
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| anacusis | loss of hering
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| aphakia | absence of lens
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| asthenopia | wakness of ocular or ciliary muscles that causes eyes to tire easily
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| atigmatism | distortion of sight beause lack of focus of light rays at one point on retina
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| blepharitis | inflammation of eyelid
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| blepharochalasis | loss of elasticity of eyelid
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| blpharospams | involuntary eyelid movement; excessive blinking
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| blepharoptosis | drooping of eyelid
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| blindess | loss of sight
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| cataract | cloudiness of lens of eye
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| chalazion | nodular inflammation that usually forms on eyelid
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| cholesteatoma | fatty cyst within middle ear
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| conjunctivitis | inflammation of conjunctiva of eyelid
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| contact lenses | corrective lenses worn on surface of eye
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| dacryoadenitis | inflamation of lacrimal glands
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| dacryocystitis | inflammation of tear duct
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| deafness | loss of hearing
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| dermatochalasis | loss of elasticity of eyelid
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| diplopia | double vision
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| epiphora | wxcessive tearing
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| esotropia | deviation of one eye inward
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| exophthalmos | abnormal protrusion of eyeballs
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| extropia | deviation of one eye outward
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| eyestrain | asthenopia
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| farsightedness | hyperopia
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| glaucoma | caused by abnormally high eye pressure
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| hordeolum | infection of sevaceous gland of eyelid; sty
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| hyperopid | focusing behind the rtina causing vision distortion
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| iritis | inflammation of iris
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| keratitis | inflammation of cornea
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| labyrinthitis | inflammation of labyrinth
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| lacrimation | secretions of tears
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| macular degeneration | gradual loss of vision caused by degeneration of tissue in macula
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| mastoiditis | inflammation of mastoid process
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| meniere's disease | elevated pressire within cochlea
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| muopia | focusing in front of retina causing vision distortion ; nearsightedness
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| myringitis | inflammation of eardrum
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| nearsightedness | myopia
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| nyctalopia | night blindness
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| nystagmus | excessive involuntary eyeball movement
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| otalgia | pain in ear
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| otitis externa | fungal infection of external ear calnal
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| otitis media | inflammation of middle ear
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| otorrhagia | bleeding from ear
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| otorrhea | purulent discharge from ear
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| otosclerosis | hardening of bones of ear
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| paracusis | imparied hearing
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| blepharoplasty | surgical repair of eyelid
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| cryoretinopexy | fixing of torn retina using extreme cold
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| dacryocystectomy | removal of lacrimal sav
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| enucleation | removal of eyeball
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| iridectomy | removal of part of iris
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| iridotomy | incision into iris to relieve pressure
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| keratoplasty | corneal transplant
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| myringotomy | insertion of small tube to help drain fluid from ears
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| otoplasty | surgival repair of outer ear
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| phacoemulsification | use of ultrasound to break up and remove cataracts
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| stapedectomy | removal of stapes to cure otosclerosis
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| trabeculectomy | removal of part of trabeculum to allow aqueous humor to lfow freely around eye
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| tympanoplasty | reapir of eardrum
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| antiseptic ear drops | to cleanse ear by dispelling earwax
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| anti inflammatory ear drops | to reduce ear inflammation
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| eye drops | to reduce eye congestion
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| eye moisturizer | to moisten eyes
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| miiotic | contraction of pupil
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| mydriatic | dilation of pupil
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| nasal decongestant | to reduce nasal congestion
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| photophobia | extreme sensitivity of light
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| pink eye | conjunctivities
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| presbyacusis | age related hearing loss
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| presbyopia | age related dimised ility to focus or accomodate
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| pseudophakia | eye with an implanted lens after cataract surgery
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| retinitis | inflammation of retina
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| retinities pimentosa | progressive inherited disease with pifmented spot on retina and poor night vision
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| scleritis | inflammtaion of sclera
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| scotoma | blind spot in visino
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| strabismus | eye misalignment
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| sty | hordeolum
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| tinnitus | constant ringing or buzzing in ear
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| trichiasis | abnormal growth of eyelashes in direction tht causes them to rub on eye
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| tympanitis | inflammation of eardrum
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| vertigo | dizziness
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