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Purple Module

Reverse Def Special Senses

vestibule a chamber that joins the cochlea and semicircular canals
equilibrium state of balance controlled by the semicircular canals and vestibule
Eustachian tube a tube which connects nose and throat with the cavity of the middle ear
cerumen waxy secretion produced by the glands of the external ear canal to prevent entrance of foreign particles (ear wax)
refractive ability to bend light rays as they pass from one medium to another (cornea)
epiphora abnormal over flow of tears
glaucoma (Grey tumor) accumulation of aqueous humor in the eye
accommodation adjustment of the eye for various distances so that the images fall on the retina of the eye
cycloplegic agents agents which paralyze ciliary muscles causing dilation of the pupils
ametropia an error in refraction causing poor focus
retinopathy any disorder of retinal blood vessels
humor any fluid or semifluid of the body
conduction impairment blocking of sound waves as they pass through the external and middle ear
retinitis pigmentosum chronic progressive disease of degeneration of the retina and atrophy of optic nerve
trachoma chronic , contagious form of conjunctivitis common in SW USA that typically leads to blindness
acuity clearness or sharpness of sensory function
anacusis complete deafness, also called anacusia
noise induced hearing loss condition caused by destruction of hair cells , the organs responsible for hearing, caused by sounds that are too long, too loud or too close
strabismus condition in which one eye is misaligned with the other our of synchrony
ophthalmic decongestants constrict the small arterioles of the eye, decreasing redness and relieving conjunctival congestion
otoplasty corrective surgery for deformed or excessively large or small pinna (external ear)
blepharoplasty cosmetic surgery that removes fatty tissue above and below the eyes, result of aging or excessive sun exposure
dacrycystorhinostomy creation of an opening in nose to for draining ears
antiglaucoma agents decrease aqueous humor production by constricting the pupil to open the angle between the iris and the cornea
astigmatism defective curvature of the cornea or lens
corectasis dilation of the pupil
otopyorrhea discharge of puss from the ear
Meniere disease disorder of the labyrinth that leads to progressive loss of hearing
diabetic small hemorrhages, edema, and formation of new vessel on retina leading to scarring with eventual loss of vision-usually occurs with diabetes mellitus
mydriatics disrupt parasympathetic nerve supply to the eye or stimulate the sympathetic nervous system causing pupil to dilate
otoalgia ear pain
fluorescein angiography evaluation of blood vessels and their leakage in and beneath the retina after injection of fluorescein dye, which circulates while photographs of the vessels within the eye are taken
tonometry evaluation of intraocular pressure by measuring the resistance of the eye ball to indentation by applied force
rentinoscopy evaluation of refractive errors of the eye by projecting a light into the eyes to determine the movement of reflected rays
tuning fork evaluation of sound conduction using vibrating tuning fork
ectropin eversion, or outward turning of the edge of the lower eyelid
gonioscopy examination of the angle of the anterior chamber of the eye to determine ocular mobility and rotation and diagnose and mange glaucoma
iridectomy excision of the iris
hyperopia farsightedness- eye ball to shot image fall behind the retina
dacryorrhea flow of tears
perilymph fluid that very closely resembles spinal fluid but found in the cochlea
ear irrigation flushing of the ear canal with water or a saline solution to dislodge impacted wax or foreign objects
cyclodialysis formation of an opening between the anterior chamber and the suprachoroidal space for the draining of aqueous humor in glaucoma
otosclerosis hardening of spongy bone around the oval window of the ear, causing hearing loss
audition hearing
nyctlopia impaired vision in dim light also called night blindness
prebyacusis impaired hearing resulting from old age
radial keratotomy incision of the cornea for treatment of nearsightedness or astigmatism
otitis externa infection of the external auditory canal
conjunctivitis inflammation of the conjunctiva with vascular congestion producing a red or pink eye
eustachitis inflammation of the Eustachian tube
labyrinthitis inflammation of the inner ear that usually results from an acute febrile process
iritis inflammation of the iris
otitis media inflammation of the middle ear
ophthalmic antibiotics inhibit growth of microorganisms that infect the eye
pressure-equalizing tube placement insertion of tubes through the tympanic membrane, commonly used to treat chronic otitis media. aka tympanostomy tubes
entropion inversion or inward turning of the edge of te lower eyelid
estropia inward turning of the eye(s)
tunic layer or coat of tissue; also membrane layer
amblyopia lazy eye syndrome
photopigments light sensitive pigment in the retina cones and rods that absorbs light and initiates the visual process; also called visual pigment
horedeolum/stye localized, circumscribed, inflammatory swelling of the eyelid, generally caused by bacterial infection: aka stye
wax emulisifiers loosen and help remove impacted ceruman
presbyopia loss of the accommodation of the crystalline lens associated with old age
anosima loss of the sense of smell
audiometry measurement of hearing acuity at various sound wave frequencies
ophthalmodynamometry measurement of the blood pressure of the retinal vessels
electronystagmography method of assessing and recording eye movements by measuring the electrical activity of the extraocular muscles
phacoemulsification method of treating cataracts by using ultrasonic waves to disintegrate cloudy lens, which is then aspirated and removed
ciliary muscles muscles which relax or contract to alter the shape of the lens, making it thicker or thinner thus enabling light rays to focus upon the retina
mastoid process one of the temporal bones which encloses the sinuses
stapes one of three bones of the middle ear; shaped like stirrups
malleus one of three bones of the middle ear; shaped like a hammer
incus one of the three bones of the middle ear; shaped like an anvil
semicircular canals one of the three structures of the inner ear; responsible for balance
optometrist one who specializes in eye measurements
cataracts opacities on the lens or the capsule that encloses the lens, causing loss of vision
exotropia outward turning of the eye(s)
ophthalmoplegia paralysis of eye
visual acuity 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
tinnitus perception of ringing, hissing, or other sound in the ears or head when no external sound is present
lacrimal pertaining to tear
olfactory pertaining to smell
cochlea implant /bionic ear placement of an artificial hearing device that produces hearing sensations by electrically stimulating nerves inside the inner ear
pneumatic procedure that assesses the ability of the tympanic membrane to move in response to a change in air pressure
blepharoptosis prolapses eyelid
otic analgesics provide temporary relief from pain and inflammation associated with otic disorders
dacryocystography radiographic imaging procedures of the nasolacrimal glands and ducts
tympanoplasty reconstruction of the eardrum aka myringoplasty
evisceration removal of the contents of the eye while leaving the sclera and cornea intact
enucleation removal of the eyeball from the orbit
vertigo sensation of a spinning motion either of oneself or of the surroundings
labyrinth series of intricate communication passages
achromatopia severe congenital deficiency in colour perception aka complete colour blindness
ear canal slender tube lined with glands through which sound waves travel to the middle ear
chalazion small hard tumor developing on the eyelid similar to a sebaceous cyst
cochlea snail shaped inner ear structure
ophthalmic moisturizers soothe dry eyes due to environmental irritants and allergens
slit-lamp examination (SLE) stereoscopic magnified view of the anterior eye structures in detail, which includes the cornea, lens, iris,sclera and vitreous humor
opaque substance or surface that neither transmits o allows the passage of light
sclerostomy surgical formation of an opening in the sclera
mastoid antrotomy surgical opening of a cavity within the mastoid process
keratocentisis surgical puncture of the cornea
papilledema swelling and hyperemia of the optic disc usually associated with the increased intracranial pressure; aka choked disc
gustation taste
caloric stimulation test test that uses different water temperatures to assess the vestibular portion of the nerve of the inner ear to determine if nerve damage is the cause of vertigo
cornea the clear transparent portion of the sclera, anterior to the lens
sclera the white of the eye, composed of a though fibrous tissue that serves as a shield for the more sensitive structures underneath
ossicles three tiny articulating bones in the middle ear
hair cells tiny nerve ending within the cochlea which combine with cochlea fluid to generate nerve impulses to the brain via the auditory nerve
adnexa tissues or structures of the body adjacent to or near a related structure
antiemetics treat and prevent nausea, vomiting, dizziness and vertigo by reducing the sensitivity of the inner ear to motion or inhibiting stimuli from reaching the part of the brain that triggers nausea and vomiting
rinne tuning fork test evaluates bone conduction of sound in both ears at the same time
weber tuning fork test that evaluates bone conduction versus air conduction of sound
nystagmus type of involuntary eye movements that appear jerky and may reduce vision
photophobia fear of light, unusual intolerance to light
intracapsular extraction use of cold metal probe to remove cataracts
meta morphopsia visual distortion of objects
otoscopy visual examination of the external auditory canal and the tympanic membrane using otoscope
ophthalmodynnamomentry visual examination of the interior of the eye using a hand held instrument called an ophthalmoscope
3 layers/tunic of the eye Fibrous Tunic, Vascular Tunic, Sensory Tunic
Rods visual receptor in the retina produces black and white vision; functions in dim light
Cones visual receptor in the retina produce coloured vision; functions to in bright light.
macula centre of the eye/retina
fovea centre of the macula; composed of only cones
canals of Schlemm small hole that allow aqueous humor to drain through
aqueous humor fluid found in the anterior and posterior chambers of they eye that provide nourishment to the lens and cornea
vitreous humor jelly like substance the fills the interior of they eye
myopia nearsightedness-eye ball too long, image falls in front of the retina
hordeolum stye
Created by: amatt