Chapter 16 Flashcards
acuity
clearness or sharpness of a sensory function
accommodation
adjustment of the eye for various distances so that images fall on the retina of the eye
adnexa
tissues or structures in the body adjacent to or near a related structure
humor
any fluid or semifluid of the body
labyrinth
series of intricate communicating passages
opaque
substance or surface that neither transmits nor allows the passage of light
perilymph
fluid that very closely resembles spinal fluid but found in the cochlea
photopigment
light sensitive pigment in the retinal cones and rods that absorbs light and initiates the visual process
also called visual pigment
refractive
ability to bend light rays as they pass from one medium to another
tunic
layer or coat of tissue
also called membrane layer
ambly/o
dull
dim
aque/o
water
blephar/o
eyelid
choroid/o
choroid
conjunctiv/o
conjunctiva
core/o, pupill/o
pupil
corne/o
cornea
cycl/o
ciliary body of the eye
circular
cycle
dacry/o, lacrim/o
tear
lacrimal apparatus
duct, sac, gland
dacryocyst/o
lacrimal sac
glauc/o
gray
goni/o
angle
irid/o
iris
kerat/o
horny tissue
hard
cornea
ocul/o, ophthalm/o
eye
opt/o, optic/o
eye
vision
phac/o
lens
phot/o
light
presby/o
old age
retin/o
retina
scler/o
hardening sclera (white of the eye)
scot/o
darkness
vitr/o
vitreous body
of the eye
audi/o
hearing
labyrinth//o
labyrinth
inner ear
mastoid/o
mastoid process
ot/o
ear
salping/o
tubes
usually fallopian or eustachian auditory tubes
staped/o
stapes
myring/o
tympanic membrane
eardrum
tympan/o
tympanic membrane
-acusia, -cusis
hearing
-opia, -opsia
vision
-tropia
turning
exo-
outside
outward
hyper-
excessive
above normal
achromatopsia
severe congenital deficiency in color perception
chalazion
small, hard tumor developing on the eyelid
conjunctivitis
inflammation of the conjunctiva with vascular congestion that produces a red or pink eye and may be secondary to allergy or viral, bacterial, or fungal infections
ectropion
Eversion, or outward turning, of the edge of the lower eyelid
entropion
Inversion, or inward turning, of the edge of the lower eyelid
epiphora
abnormal overflow of tears
hrodeolum
localized, circumscribed, inflammatory swelling of one of the several sebaceous glands of the eyelid, generally caused by a bacterial infection
also called stye
metamorphopsia
visual distortion of objects
nyctalopia
impaired vision in dim light
night blindness
nystagmus
type of involuntary eye movements that appear jerky and may reduce vision or be associated with other, more serious conditions that limit vision
papilledema
swelling and hyperemia of the optic disc, usually associated with increased intracranial pressure
choked disc
photophobia
unusual intolerance and sensitivity to light
presbyopia
loss of accommodation of the crystalline lens associated with the aging process
retinopathy
any disorder of retinal blood vessels
diabetic retinopathy
disorder that occurs in patients with diabetes and manifests as small hemorrhages, edema, and formation of new vessels on the retina, leading to scarring and eventual loss of vision
trachoma
chronic, contagious form of conjunctivitis that typically leads to blindness
anacusis
complete deafness
conduction impairment
blocking of sound waves as they pass through the external and middle ear
conduction pathway
labyrinthitis
inflammation of the inner ear that usually results from an acute febrile process
Meniere disease
disorder of the labyrinth that leads to progressive loss of hearing
noise-induced hearing loss (NIHL)
condition caused by the destruction of hair cels, the organs responsible for hearing, as a result of sounds that are “too long, too loud, or too close”
otitis externa
infection of the external auditory canal
presbyacusis
impairment of hearing resulting from old age
tinnitus
perception of ringing, hissing, or other sounds in the ears or head when no external sound is present
vertigo
sensation of a spinning motion either of oneself or of the surroundings
ear irrigation
flushing of the ear canal with water or saline to dislodge foreign bodies or impacted cerumen (earwax)
slit-lamp examination (SLE)
stereoscopic magnified view of the anterior eye structures in detail, which includes the cornea, lens, iris, sclera, and vitreous humor
blepharoplasty
cosmetic surgery that removes fatty tissue above and below the eyes that commonly form as a result of the aging process or excessive exposure to the sun
pressure-equalizing (PE) tube placement
insertion of tubes through the tympanic membrane, commonly used to treat chronic otitis media
cochlear implant insertion
placement of an artificial hearing device that produces hearing sensations by electrically stimulating nerves inside the inner ear
cyclodialysis
formation of an opening between the anterior chamber and the suprachoroidal space for the draining of aqueous humor in glaucoma
enucleation
removal of the eyeball from the orbit
evisceration
removal of the contents of the eye while leaving the sclera and cornea intact
mastoid antrotomy
surgical opening of a cavity within the mastoid process
otoplasty
corrective surgery for a deformed or excessively large or small pinna
phacoemulsification
method of treating cataracts by using ultrasonic waves to disintegrate cloudy lens, which is the n aspirated and removed
radial keratotomy (RK)
incision of the cornea for treatment of nearsightedness or astigmatism
sclerostomy
surgical formation of an opening in the sclera
tympanoplasty
reconstruction of the eardrum, commonly due to perforation
audiometry
measurement of hearing acuity at various sound wave frequencies
caloric stimulation test
test that uses different water temperatures to assess the vestibular portion of the nerve of the inner ear (acoustic nerve) to determine if nerve damage is the case of vertigl
electronstagmography
method of assessing and recording eye movements by measuring the electrical activity of the extraocular muscles
gonioscopy
examination of the angle of the anterior chamber of the eye to determine ocular motility and rotation and diagnose and manage glaucoma
ophthalmodynamometry
measurement of the blood pressure of the retinal vessels
ophthalmoscopy
visual exam of the interior of the eye using a handheld instrument called an ophthalmoscope which has various adjustable lenses for magnification and light source to illuminate the interior of the eye
otoscopy
visual exam of the external auditory canal and the tympanic membrane using an otoscope
pneumatic otoscopy
procedure that assesses the ability of the tympanic membrane to move in response to change in air pressure
retinoscopy
evaluation of refractive errors of the eye by projecting a light into the eyes and determining the movement of reflected light rays
tonometry
evaluation of intraocular pressure by measuring the resistance of the eyeball to indentation by an applied force
turning fork test
evaluation of sound conduction using a vibrating turning fork
Rinne turning fork test
evaluates bone conduction (BC) versus air conduction (AC) of sound
Weber turning fork test
evaluates bone conduction of sound in both ears at the same time
visual acuity (VA) test
part of an eye exam that determines the smallest letters that can be read on a standardized chart at a distance of 20 feet
dacryocystography
radiograhic imaging procedure of the nasolacrimal (tear) glands and ducts
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 obtained
Acc
accommodation
ARMD, AMD
age-related mascular degeneration
Ast
astigmatism
ENG
electronystagmography
IOL
intraocular lens
IOP
intraocular pressure
LASIK
laser-assisted in situ keratomileusis
AC
air conduction
BC
bone conduction
ENT
ear
nose
throat
NIHL
noise-induced hearing loss
O.D.
doctor of optometry
RK
radial keratotomy
SLE
slit-lamp examination
systemic lupus erythematosus
ST
esotropia
VA
visual acutiy
VF
visual field
XT
exotropia
OM
otitis media
PE
physical examination
pulmonary embolism
pressure-equalizing (tube)
URI
upper respiratory infection
ophthalm/o
eye
pupill/o
pupil
kerat/o
cornea
scler/o
sclera
irid/o
iris
retin/o
retina
blephar/o
eyelid
ot/o
ear
audi/o
hearing
-opia
vision
-acusis
hearing
cataract
opacity that forms on the lens and impairs vision
achromatopsia
severe congenital form of color blindness
presbyacusis
impaired hearing due to old age
anacusis
complete deafness
otitis externa
infection of the external auditory canal
otosclerosis
ankylosis of the middle ear bones resulting in hearing loss
otitis media
middle ear infection commonly found in infants and children
otopyorrhea
discharge of pus from the ear
vertigo
feeling of dizziness
exotropia
outward deviation of the eye
drusen
small, yellowish deposits that develop on macula in age related macular degeneration
chalazion
tumor of the eyelid similar to a sebaceous cyst
amblyopia
lazy eye syndrome
retinoblastoma
neoplastic disease of the eye found primarily in children
tinnitus
perception of ringing in the ears with no external stimuli
caloric stimulation
test that uses different temperatures to assess the vestibular portion of the nerve
ophthalmoscopy
visual exam of the interior of the eye
cochlear implant
artificial device that produces hearing sensations by electrically stimulating nerves inside the inner ear
fluorescein angiography
assesses blood vessels and retinal circulation using a colored dye while photographs are taken
mydriatics
agents that dilate the pupils and paralyze the eye muscles of accommodation
evisceration
removal of the contents of the eyeball leaving the sclera and cornea
antimetics
treat and prevent nausea, vomiting, dizziness, and vertigo
ST
esotropia
XT
exotropia
gonioscopy
visual exam of the angle of the anterior chamber of the eye
radial keratotomy
surgical treatment for nearsightedness that uses small incisions to flatten the cornea
otic analgesics
provide temporary relief from earache
tonometry
pressure measurement
hyperopia
farsightedness
trabeculoplasty
surgical repair of the trabecula