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163 Cards in this Set

  • Front
  • Back
accommodation
normal adjustment of the eye to focus on objects from far to near
acoustic
pertaining to hearing
acoustic neuroma
benign tumor arising from the acoustic nerve
ambylopia
reduced vision
anisocoria
inequality in size of puplis
anterior chamber
space behind the cornea and in front of the lens and iris
aphakia
absence of the lens of the eye
aqueous humor
fluid produced by the cilary body and found in the anterior chamber of the eye
astigmatism
abnormal curvature of the eyeball so that rays of light are not focused on a single point on the retina
audiogram
record of hearing using an autiometer
autometer
instrument to measure or test hearing
autometry
process of testing hearing
auditory canal
channel leading from the ear flap to the eardrum
auditory meatus
opening of the auditory canal to the outside of the body
auditory nerve fibers
carry impulses from the inner ear to the brain
auditory tube
channel between the middle ear and the throat
Aural
pertaining to the ear
auricle
flap of the ear
biconvex
having two sides that are rounded, elevated, and curved evenly like part of a sphere.
biepharitis
inflammation of an eyelid
biepharoptosis
prolapse of the upper eyelid
cataract
clouding or loss of transparency of the lens of the eye
cerumen
waxy substance secreted by the ear, ear wax
chalazion
small, hard mass on the eyelid
cholesteatoma
middle ear mass of cellular debris and cholesterol crystals
choroid
middle, vascular layer of the eye
ciliary body
structure on each side of the lens that connects the choroid and iris, contains muscles that control the shape of the lens
cochlea
snail-shaped, spirally wound tube in the inner ear, contains hearing sensitive receptor cells
cochlear
pertaining to the cochlea
cone
photoreceptor cell in the retina; responsible for color and central vision
conjunctiva
delicate membrane lining the eyelids and covering the eyeball
conjunctivitis
inflammation of the conjunctiva
cornea
fibrous transparent layer of clear tissue that extends over the anterior portion of the eyeball
corneal abrasion
rubbing off of a part of the outer layer of the cornea
corneoscleral
pertaining to the cornea and sciera, which is the white of the eye
cycloplegia
paralysis of the muscles of the ciliary body
darcryoadenitis
inflammation of tear glands
deafness
loss of the ability to hear
diabetic retinopathy
disease of the retina due to long-term effects of diabetes
diplopia
double vision
ear thermometry
measurement of the temperature of the tympanic membrane by detection of infrared radiation from the eardrum
endolymph
fluid within the labyrinth of the inner ear, conducts sound waves
enucleation
removal of the eyeball from the orbit of the eye
esotropia
turning inward of one or both pupils, cross-eyes
eustachian tube
channel between the middle ear and the throat, auditory tube
exotropial
turning to the side or outward of one or both pupils
fluorescein angiography
intravenous injection of a dye followed by serial photographs of the retina through dilated pupils
fovea centralis
tiny pit or depression in the retina that is the region of clearest vision
fundus of the eye
posterior, inner part of the eye
glaucoma
increased intraocular pressure resulting in damage of the retina and optic nerve loss of vision
hemianopsia
absence of vision in half of the visual field (common in stroke victims)
hordeolum (stye or sty)
localized, purulent, inflammatory staphylococcal infection of a sebaceous gland in the eyelid
hyperopia
farsightedness
hypertensive retinopathy
Disease of the retina due to high blood pressure.
intracocular
'
iridectomy
Removal of a portion of the iris
iridic
Pertaining to the iris
iris
pigmented (color) layer that opens and closes to allow more or less light into the eye.
iritis
pain, sensitivity to light , and lacrimation
keratitis
Inflammation of the cornea
keratoplasty
surgical repair of the cornea
lacrimal
Pertaining to tears
lacrimation
Production of tears
laser photocoagulation
intense, precisely focused light beam creates an inflammatory reaction that seals retinal tears and leaky retinal blood vessels
lens
transparent, biconvex body behind the pupil of the eye. it bends light rays to bring them into focus on the retinal
macula
yellowish region on the retina lateral to and slightly below the optic disc; contains the fovea centralis, which is the area of clearest vision
macular degeneration
process damage to the macula of the retina
miosis
Contraction of the pupil of the eye
miotic
Drug that causes the pupil of the eye to contract
mydrasis
Widening of the pupil of the eye
myopia
nearsightedness
nyctalopia
Night blindness or difficult, poor vision at night
nystagmus
repetitive rhythmic movements of one or both eyes
ophthalmic
Pertaining to the eye
ophthalmologist
doctor who specializes in treating disorders of the eye
ophthalmoplegia
Paralysis of muscles that move the eyeball
ophthalmoscopy
visual examination of the interior of the eye
optic chiasm
point at which optic nerve fibers cross in the brain
optic disc
region at the back of the eye where the optic nerve meets the retina. It is the blind spot of the eye because it contains only nerve fibers, no rods or cones, and is thus insensitive to light
optician
nonmedical professional who grinds lenses and fits glasses but cannot prescribe lenses
optic nerve
cranial nerve carrying impulses from the retina to the brain
optometrist
Nonmedical professional trained to examine and measure the eye to prescribe and fit eyeglasses and contact lenses
palpebral
Pertaining to an eyelid.
papilledema
Swelling of the optic disc; associated with increased pressure within the eye.
phacoemulsification
ultrasonic vibrations break up the lens, which then is aspirated through the ultrasonic probe
photophobia
Sensitivity to light.
presbyopia
impairment of vision as a result of old age
pupil
central opening of the iris
pupillary
Pertaining to the pupil of the eye.
refraction
bending of light rays by the cornea, lens, and fluids of the eye to bring rays into focus on the retina
retina
light-sensitive nerve cell layer of the eye containing photoreceptor cells (rods and cones)
retinal detachment
two layers of the retina separate from each other
retinitis pigmentosa
Inflammation of the retina with pigmentation and progressive scarring of tissue.
rod
photoreceptor cell of the retina essential for vision in dim light and for peripheral vision'
sclera
tough, white outer coat of the eyeball
scleral buckle
suture of a silicone band to the sclera over a detached portion of the retina
scleritis
Inflammation of the sclera
scotoma
Blind spot in the field of vision.
slit lamp microscopy
examination of anterior ocular structures under microscopic maginification
strabismus
abnormal deviation of the eye
thalamus
relay center of the brain. Optic nerve fibers pass through the thalamus on their way to the cerebral cortex
tonometry
Measurement of tension and pressure within the eye; glaucoma test.
uveitis
Inflammation of the uvea, which is the vascular layer of the eye (including the iris, choroids, and ciliary body).
visual acuity test
charity of vision is assessed
visual field test
measurement of the area with in which objects are seen when the eyes are fixed, looking straight ahead without movement of the head
vitrectomy
removal of the vitreous humor
vitreous humor
soft, jelly-like material behind the lens in the vitreous chamber, helps maintain the shape of the eyeball'
xerophthalmia
Condition of excessive dryness of the eye
acoustic
pertaining to hearing
acoustic neuroma
benign tumor arising from acoustic nerve
audiogram
Record of hearing using an audiometer.
audiologist
Health care professional specializing in the evaluation and rehabilitation of people with hearing loss
audiometer
Instrument to measure or test hearing.
audiometry
Process of testing hearing.
auditory canal
channel that leads from the pinna to the eardrum
auditory meatus
auditory canal
auditory nerve fibers
carry impulses from the inner ear to the brain
auditory tube
channel between the middle ear and the nasopharynx
aural
Pertaining to the ear.
auricle
flap of the ear; the protruding part of the external ear
cerumen
waxy substance secreted by the external ear (earwax)
cholesteatoma
collection of skin cells and cholesterol in a sac within the middle ear
cochlea
snail-shaped, spirally wound tube in the inner ear, contains hearing-sensitive receptor cells
cochlear
Pertaining to the cochlea.
deafness
loss of ability to hear
ear thermometry
Measurement of the temperature of the tympanic membrane by detection of infrared radiation from the eardrum.
endolymph
fluid within the labyrinth of the inner ear
eustachian tube
auditory tube
hyperacusis
Excessive sensitivity to sounds.
incus
second ossicle (bone) of the middle ear
labyrinth
maze-like series of canals of the inner ear
macrotia
Abnormally large ears.
malleus
first ossicle of the middle ear (hammer)
mastoiditis
Inflammation and infection of the mastoid process just behind the ear.
Meniere disease
disorder of the labyrinth of the inner ear.
myringitis
Inflammation of the eardrum.
myringotomy
Incision of the eardrum.
ossicle
small bone of the ear, includes the malleus, incus, and staples
ossiculopasty
Surgical repair of an ossicle (small bone) of the middle ear.
otic
Pertaining to the ear
otolaryngologist
Specialist (surgeon) in ear, nose, and throat disorders.
otomycosis
Fungal infection of the ear.
otopyorrhea
Discharge of pus from the ear.
otosclerosis
hardening of the bony tissue of the middle ear
otoscopy
Visual examination of the ear using an otoscope.
oval window
membrane between the middle ear and the inner ear
perilymph
fluid contained in the labryinth if the inner ear
pinna
auricle, flap of the ear
postauricular
Pertaining to behind the ear.
presbycusis
Progressive loss of hearing, occurring in middle and older age.
salpingopharyngeal
Pertaining to the eustachian tube and the throat.
semicircular canals
passages in the inner ear associated with maintaining equilibrium
serous otitis media
Noninfectious inflammation of the middle ear with accumulation of clear fluid.
stapedectomy
Removal of the stapes (third middle ear bone).
staples
third ossicle of the middle ear (stirrup)
suppurative otitis media
Infectious inflammation of the middle ear with pus formation.
tinnitus
sensation of noises (ringing, buzzing, whistling, booming) in the ears
tuning fork test
Measure bone and air conduction of sound through the ear.
tympanic membrane
membrane between the outer and the middle ear (eardrum)
tympanoplasty
Surgical repair of the eardrum.
vertigo
sensation of irregular or whirling motion either of oneself or of external objects
vestibule
central cavity of the labyrinth, connecting the semicircular canals and the cochlea.
vestibulocochlear
Pertaining to the vestibule and cochlea