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36 Cards in this Set
- Front
- Back
astigmatism
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impaired vision caused by irregularities in the curvature of the cornea or lens
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blind spots
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the area on the retina that marks the site of entrance of the optic nerve
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blindness
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no perception of visual stimuli; lack or loss of ability to see
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legal blindness
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less than 20/200 vision with corrective eyeglasses
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braille
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a system of writing and printing by means of raised points representing letters; enables people with a visual disability to read by touch
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cataract
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clouding or opacity of the lens of an eye
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color blindness
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inability to distinguish between certain colors; most common is red/green confusion; color vision is a function of the cones of the retina
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diplopia
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double vision; perception of two images of a single object
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glaucoma
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group of diseases of the eye characterized by intra ocular pressure from pathologic changes in the optic disc; person has visual -field defects
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hyperopia
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farsightedness; eyeball is shorter behind the retina; vision is better for distant objects than for near objects
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myopia
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nearsightedness; longer eyeball from front to back so the image is focused in front of the retina
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nyctalopia
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night blindness; may be hereditary or related to vitamin deficiency
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ocular
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pertaining to the eye
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ophthalmologist
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physician who specializes in diagnosing and prescribing treatment for defects, injuries, and diseases of the eye
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ophthalmology
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the branch of medicine that deals with the anatomy, diagnosis, pathology and treatment of eye
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optician
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technician who prepares and adapts lenses, fills prescriptions from an ophthalmologist
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optometrist
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a specialist in optometry, the measurement of visual acuity and the adaptation of lenses for correction of visual defects
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retinitis
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inflammation of the retina
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retinopathy
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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
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retinopathy of prematurity
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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
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audiogram
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graphic record of the findings of an audiometer
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audiologist
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certified allied health worker, often with advanced degrees; trained in the identification, diagnosis, measurement, and rehabilitation of hearing impairment
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audiometer
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instrument used to determine degree and type of hearing ability
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aural
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pertaining to the ear
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decibel
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unit for expressing the relative loudness of a sound; abbreviation, dB
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hearing
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the sense by which sounds are perceived; conversion of sound waves into nerve impulses, which are then interpreted by the brain
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otitis
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inflammation of the ear
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otitis media
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inflammation of the middle ear
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otologist
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physician specialist in otology, the branch of medicine dealing with the anatomy, physiology, pathology, and treatment of the ear
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speechreading
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recognizing spoken words by watching the speaker's lips, face, and gestures
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TDD
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telecommunication device for the deaf
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tinnitus
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noise in the ears, as ringing, buzzing, or roaring
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TTY
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text telephone device
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Tuning fork
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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
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tympanic membrane
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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
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vertigo
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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
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