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36 Cards in this Set

  • Front
  • Back
astigmatism
impaired vision caused by irregularities in the curvature of the cornea or lens
blind spots
the area on the retina that marks the site of entrance of the optic nerve
blindness
no perception of visual stimuli; lack or loss of ability to see
legal blindness
less than 20/200 vision with corrective eyeglasses
braille
a system of writing and printing by means of raised points representing letters; enables people with a visual disability to read by touch
cataract
clouding or opacity of the lens of an eye
color blindness
inability to distinguish between certain colors; most common is red/green confusion; color vision is a function of the cones of the retina
diplopia
double vision; perception of two images of a single object
glaucoma
group of diseases of the eye characterized by intra ocular pressure from pathologic changes in the optic disc; person has visual -field defects
hyperopia
farsightedness; eyeball is shorter behind the retina; vision is better for distant objects than for near objects
myopia
nearsightedness; longer eyeball from front to back so the image is focused in front of the retina
nyctalopia
night blindness; may be hereditary or related to vitamin deficiency
ocular
pertaining to the eye
ophthalmologist
physician who specializes in diagnosing and prescribing treatment for defects, injuries, and diseases of the eye
ophthalmology
the branch of medicine that deals with the anatomy, diagnosis, pathology and treatment of eye
optician
technician who prepares and adapts lenses, fills prescriptions from an ophthalmologist
optometrist
a specialist in optometry, the measurement of visual acuity and the adaptation of lenses for correction of visual defects
retinitis
inflammation of the retina
retinopathy
noninflammatory disease of the retina; identified by the chronic disease of which it is a symptom; for example, diabetic retinopathy reflects the retinal manifestations of diabetes mellitus, including micro aneurysms
retinopathy of prematurity
a condition peculiar to premature infants; characterized by opaque tissue behind the lens resulting from a high concentration of oxygen, which causes spasm of the retinal vessels, leads to retinal detachment, and arrests eye growth and development; prevented by keeping oxygen administration as low as possible and discontinuing the oxygen as soon as possible
audiogram
graphic record of the findings of an audiometer
audiologist
certified allied health worker, often with advanced degrees; trained in the identification, diagnosis, measurement, and rehabilitation of hearing impairment
audiometer
instrument used to determine degree and type of hearing ability
aural
pertaining to the ear
decibel
unit for expressing the relative loudness of a sound; abbreviation, dB
hearing
the sense by which sounds are perceived; conversion of sound waves into nerve impulses, which are then interpreted by the brain
otitis
inflammation of the ear
otitis media
inflammation of the middle ear
otologist
physician specialist in otology, the branch of medicine dealing with the anatomy, physiology, pathology, and treatment of the ear
speechreading
recognizing spoken words by watching the speaker's lips, face, and gestures
TDD
telecommunication device for the deaf
tinnitus
noise in the ears, as ringing, buzzing, or roaring
TTY
text telephone device
Tuning fork
instrument used to test for hearing loss, vibrations of the fork produce sound waves that can be heard in both ears by a person with normal hearing when the stem is placed on top of the head; sound is heard louder in an ear affected by sensorineural loss
tympanic membrane
ear drum, vibrates when sound waves strike; transmits waves to nerve endings by way of ossicles in the middle ear and to cochlea in the inner ear
vertigo
sensation of rotation or movement of one's self (subjective vertigo) or of one's surroundings ( objective vertigo); a subtype of dizziness, but not a symptom