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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